EP2604318B1 - Systeme und Verfahren für aufblasbaren Lawinenschutz mit aktiver Abblasung - Google Patents

Systeme und Verfahren für aufblasbaren Lawinenschutz mit aktiver Abblasung Download PDF

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Publication number
EP2604318B1
EP2604318B1 EP12196973.7A EP12196973A EP2604318B1 EP 2604318 B1 EP2604318 B1 EP 2604318B1 EP 12196973 A EP12196973 A EP 12196973A EP 2604318 B1 EP2604318 B1 EP 2604318B1
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EP
European Patent Office
Prior art keywords
fan
inflatable chamber
channel
inflation
internal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12196973.7A
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English (en)
French (fr)
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EP2604318A2 (de
EP2604318A3 (de
Inventor
Peter Thomas Gompert
James Thomas Grutta
Nathan Kuder
Derick J. Noffsinger
Robert John Horacek
Benjamin Walker
David Kuhlmann Blackwell
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Black Diamond Equipment Europe GmbH
Original Assignee
Black Diamond Equipment Europe GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from US13/324,788 external-priority patent/US9004116B2/en
Priority claimed from US13/324,840 external-priority patent/US9289633B2/en
Priority claimed from US13/598,561 external-priority patent/US8851949B2/en
Application filed by Black Diamond Equipment Europe GmbH filed Critical Black Diamond Equipment Europe GmbH
Publication of EP2604318A2 publication Critical patent/EP2604318A2/de
Publication of EP2604318A3 publication Critical patent/EP2604318A3/de
Application granted granted Critical
Publication of EP2604318B1 publication Critical patent/EP2604318B1/de
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B33/00—Devices for allowing seemingly-dead persons to escape or draw attention; Breathing apparatus for accidentally buried persons

Definitions

  • the invention generally relates to inflatable avalanche safety systems and methods of operation.
  • the present invention relates to systems and methods for efficient inflation of an avalanche safety chamber.
  • One type of emergency life-preserving equipment is an inflatable safety system configured to inflate a chamber in response to an emergency event such as an impact or a potential impact.
  • an emergency event such as an impact or a potential impact.
  • automobile driver inflatable safety systems are designed to automatically inflate a chamber over the steering wheel in response to an impact between the automobile and another object so as to protect the driver from forceful impact with interior structures of the automobile.
  • avalanche inflatable safety systems are designed to manually inflate a chamber adjacent to the user in response to the user's triggering of an inflation mechanism.
  • Inflatable safety systems generally include an inflatable chamber, an activation system, and an inflation system.
  • the inflatable chamber is designed to expand from a compressed state to an inflated state so as to cushion the user or dampen potential impact.
  • the inflatable chamber may also be used to encourage the user to elevate over a particular surface.
  • the elevation of the inflatable chamber is achieved by the concept of inverse segregation, in which larger volume particles are sorted towards the top of a suspension of various sized particles in motion.
  • the activation system enables manual or automatic activation of the inflation system.
  • the inflation system transmits a fluid such as a gas into the inflatable chamber, thus increasing the internal pressure within the inflatable chamber and thereby transitioning the inflatable chamber from the compressed state to the inflated state.
  • WO 2012/035422 A1 shows an avalanche airbag inflation system comprising an inflatable chamber that is filled with ambient air using a battery powered electrical motor.
  • conventional inflatable avalanche safety systems fail to provide an efficient deflation procedure of the inflatable chamber.
  • Conventional inflatable safety systems utilize various selective manual deflation configurations of the internal chamber. Selective manual deflation configurations may include one or more openings or channels to the internal region of the inflatable chamber, which must be manually opened by the user to cause deflation. Selective manual deflation configurations therefore require the user to perform some form of manual operation to deflate the inflatable chamber, which may not be possible in a limited mobility burial scenario.
  • the present invention generally relates to inflatable avalanche safety systems and methods of operation as defined in the independent claims. Various aspects are defined in the dependent claims.
  • One embodiment of the present invention relates to an avalanche safety system including an inflatable chamber, activation system, inflation system, and a harness.
  • the inflatable chamber is a three-dimensionally, partially enclosed region having an inflated state and a compressed state.
  • the inflated state may form a particular three dimensional shape configured to protect the user from impact and/or provide inverse segregation during an avalanche.
  • the activation system is configured to receive a user-triggered action to activate the system.
  • the inflation system may include an air intake, battery, fan, and internal airway channel. Alternatively, the inflation system may include an air intake, compressed gas, and internal airway channel.
  • the inflation system is configured to transmit gas into and out of the inflatable chamber to transition between the inflated state and compressed state.
  • the harness may be a backpack that enables a user to transport the system while engaging in activities during which they may be exposed to avalanche risk.
  • the harness may include hip straps, shoulder straps, internal compartments, etc.
  • the inflation system may automatically deflate or transmit the gas from the inflatable chamber external of the system. Automatic deflation of the inflatable chamber may be via a valve corresponding to a particular value such as time or three dimensional position of the user.
  • Embodiments of the present invention overcome the problematic deflation procedure of conventional avalanche safety systems by including an automatic deflation mechanism configured to automatically transmit air out from the inflation chamber, rather than requiring a user to manually perform an action to initiate deflation.
  • Embodiments of the present invention may also include a novel inflation system that enables inflation and automatic deflation of the inflatable chamber.
  • the present invention generally relates to inflatable avalanche safety systems and methods of operation.
  • One embodiment of the present invention relates to an avalanche safety system including an inflatable chamber, activation system, inflation system, and a harness.
  • the inflatable chamber is a three-dimensionally, partially enclosed region having an inflated state and a compressed state.
  • the inflated state may form a particular three dimensional shape configured to protect the user from impact and/or provide inverse segregation during an avalanche.
  • the activation system is configured to receive a user-triggered action to activate the system.
  • the inflation system may include an air intake, battery, fan, and internal airway channel. Alternatively, the inflation system may include an air intake, compressed gas, and internal airway channel.
  • the inflation system is configured to transmit gas into and out of the inflatable chamber to transition between the inflated state and compressed state.
  • the harness may be a backpack that enables a user to transport the system while engaging in activities during which they may be exposed to avalanche risk.
  • the harness may include hip straps, shoulder straps, internal compartments, etc.
  • the inflation system may automatically deflate or transmit the gas from the inflatable chamber external of the system. Automatic deflation of the inflatable chamber may be via a valve corresponding to a particular value such as time or three dimensional position of the user.
  • avalanche safety system it will be appreciated that the teachings of the present invention are applicable to other areas including but not limited to non-avalanche impact safety systems.
  • FIG. 1 illustrates a profile view of an avalanche safety system, designated generally at 100.
  • the illustrated system 100 includes an inflatable chamber 140, an inflation system 160, an activation system (not shown), and a harness 120.
  • the inflatable chamber 140 is a three dimensional, inflatable, partially enclosed structure.
  • the inflatable chamber 140 includes an inlet (not shown) and a particular inflated shape.
  • the inflatable chamber 140 is illustrated in the compressed state in Figure 1 .
  • the compressed state includes substantially expelling air from within the inflatable chamber and compressing the external surface of the inflatable chamber upon itself.
  • Figure 7C illustrates the inflated state of the inflatable chamber.
  • the inflated state of the inflatable chamber includes expansion of the external surface away from its compressed state, substantially analogous to the inflation of a balloon.
  • the inflatable chamber may include a particular three dimensional inflated shape such that upon inflation, the external surfaces are forced to form the shape.
  • the inflatable chamber may be configured to include multiple chambers, multiple regions, etc.
  • Figure 7C illustrates one embodiment of an inflated shape, including a substantially pillow-shaped form with two horn members. It will be appreciated that various other shapes may be practiced in accordance with embodiments of the present invention.
  • the inflatable chamber 140 may be configured to wrap around the head and/or torso of the user.
  • the inflation system 160 is configured to transition the inflatable chamber 140 from the compressed state to the inflated state.
  • the inflation system 160 may further include an air intake 180, a fan 164, a battery 166, an internal airway channel 168, a motor 170, and a controller 172.
  • the air intake 180 provides an inlet for receiving ambient air.
  • the illustrated air intake 180 includes an elongated vent structure through which ambient air may flow.
  • the air intake 180 is coupled to the internal airway channel 168 such that ambient air may be transmitted through the air intake 180 to the internal airway channel with minimal loss.
  • the components and operation of the air intake will be described in more detail with reference to Figure 5 below.
  • the fan 164, battery 166, motor 170, and controller 172 are the electrical components of the inflation system.
  • the electrical components of the inflation system 160 are electrically coupled to the activation system as illustrated in Figure 2 .
  • the fan 164 is a rotational member configured to generate a vacuum force in a particular orientation upon rotation.
  • the fan is oriented in the system 100 to generate the vacuum force such that ambient air is pulled into the inflatable chamber 140. It will be appreciated that fans in a variety of sizes may be used in accordance with embodiments of the present invention.
  • the battery 166 may be any form of electrical storage device.
  • the motor 170 converts electrical energy into mechanical rotation.
  • the controller 172 may be any form of speed controller to facilitate particular inflation patterns, such as a logarithmic increase in fan speed.
  • the fan 164, battery 166, motor 170, and controller 172 are selected to correspond with one another to facilitate optimal inflation characteristics. For example, the size of fan 164 dictates the necessary speed and time required to inflate the inflatable chamber 140. The speed and time parameters thereby influence optimal selection of the remaining electrical components.
  • the activation system 190 is configured to activate the inflation system 160 to expand the inflatable chamber 140 to the inflated state.
  • the activation system 190 is a user-input device configured to a user-triggered action intended to activate the system 100.
  • the particular user-triggered action depends on the specific type of activation system components.
  • the activation system 190 may include some form of physical switch configured to receive a physical switching motion from the user to activate the system 100.
  • the switch may be any type of switching mechanism including but not limited to a rip cord, push button, toggle, etc.
  • the activation system 190 is electrically coupled to the inflation system 160 so as to engage the inflation system upon receipt of the user-triggered action.
  • the activation system 190 may include other sensors designed to activate the system without a user-triggered action.
  • the activation may include a deactivation switch.
  • the deactivation switch may be used to deactivate the system in the event of an inadvertent activation.
  • the harness 120 couples the system 100 to the user 200 as illustrated in Figures 7A-7C .
  • the illustrated harness 120 in Figures 1-7 is a backpack-style unit, including a hip strap 124 and a shoulder strap 122.
  • the backpack configuration provides an internal chamber separate from the inflatable chamber 140 within which the user may store items.
  • the internal chamber is disposed between the user and the inflatable chamber 140 such that the inflatable chamber is distally disposed with respect to the remainder of the harness/backpack 120 and the user. Therefore, upon activation the inflatable chamber will be able to inflate without obstruction.
  • the inflation system 160 is distal to the inflatable chamber 140 in the illustrated embodiment.
  • the inflation system 160 may be disposed within a region configured to break away or articulate upon the inflation of the inflatable chamber 140, as illustrated in Figures 7A-C .
  • the backpack or harness may further include various other straps and compartments in accordance with embodiments of the present invention.
  • the harness may be any form of simple strapping apparatus configured to couple the system to the user.
  • the activation system 190 includes a switch 192. As discussed above, the activation system 190 is configured to receive a user-triggered action intended to activate the avalanche safety system 100 and inflate the inflatable chamber 140.
  • the switch 192 is electrically coupled to the inflation system 160 between the battery 166 and the controller 172. As described above, the battery 166 stores electrical energy for use in inflating the inflatable chamber 140.
  • the controller 172 is electrically coupled between the battery 166 and the motor 170. The controller 172 may provide a particular electrical inflation profile, including the modulation of current with respect to time.
  • the motor 170 is electrically coupled to the controller 172 and fan 164 such that the modulated current from the controller 172 may be converted into mechanical rotation of the fan 164.
  • the fan 164 is mechanically disposed between the air intake 180 and the inflatable chamber 140.
  • an internal airway channel 168 connects the air intake 180, fan 164, and inflatable chamber 140 so as to minimize air loss.
  • the fan 164 upon activation, the fan 164 generates a rotational force that creates a vacuum aligned with the illustrated arrows. The vacuum pulls external ambient air through the air intake 180, through the fan 164, and into the inflatable chamber 140.
  • the battery 166 may be any type of electrical storage device including but not limited to a direct current battery of the type illustrated.
  • the fan 164 may be a circular fan that facilitates engagement with the internal airway channel 168.
  • the motor 170 may be any type of motor 170 configured to correspond to the battery 166 and controller 172 parameters. Likewise, the controller 172 may be configured according to the inflation objectives for the inflatable chamber 140.
  • FIG. 4 illustrates a perspective view of the air intake frame 182, internal airway channel 168, and fan 164.
  • the air intake frame 182 is part of the air intake 180.
  • Various other air intakes may also be incorporated, including but not limited to the sides, bottom and front of the system 100. Increasing the number of air intake regions increases reliability of the air intake system during operation.
  • the air intake frame 182 is a partially rigid member with a lateral vent structure as illustrated.
  • the lateral vent structure includes a channel to the internal airway channel 168. Therefore, air/gas transmitted through the lateral vents may be routed to the internal airway channel 168.
  • the air intake frame 182 includes rigid internal structure members in order to maintain the channel.
  • the illustrated internal airway channel 168 is a cylindrical member coupled between the air intake frame 182 and the fan 164.
  • the internal airway channel 168 substantially encloses the coupling so as to minimize air leakage between the air intake frame 182 and the fan 164.
  • the fan 164 is coupled to the internal airway channel 164.
  • the inflatable chamber 140 (not shown in Figure 4 ) is coupled to the fan 164, either directly or via another internal airway channel member (not shown).
  • FIG. 5 illustrates an exploded view of the air intake 180 with respect to the remainder of the avalanche safety system.
  • the air intake 180 includes the air intake frame 182 (illustrated in Figure 4 ), a battery compartment 186, and a cover 184.
  • the battery compartment 186 is configured to be disposed within the air intake frame 182.
  • the positioning of the battery compartment 186 and the battery (not shown) with respect to the user is important because of the relative weight of most batteries. Therefore, positioning the battery 164 in a central region enables the shoulder 122 and hip straps 124 of the backpack (harness 120) to efficiently support the battery during operation.
  • the cover 184 includes padded regions and mesh regions.
  • the padded regions facilitate user comfort and are disposed between the user and the air intake frame 182.
  • the mesh regions are oriented to align with the lateral venting structure of the air intake frame 182. Therefore, ambient air may transmit through the mesh regions and into the air intake frame 182 as discussed above.
  • the mesh regions prevent debris from obstructing the vent structure of the air intake frame 182.
  • Figure 5 further illustrates a frame 126 member of the backpack or harness 120.
  • the frame 126 may include a rigid support region for further supporting the system with respect to the user.
  • the exploded view illustrates the positioning of the air intake 180 and the frame 126 with respect to the remainder of the system 100.
  • the hip/waist straps 124 and the shoulder straps 122 are also illustrated in the exploded view for positional reference.
  • the method for inflating an inflatable chamber within an avalanche safety system comprises a plurality of acts.
  • the illustrated method may be performed using the avalanche safety system 100 described above, or in correlation with an alternative avalanche safety system.
  • the method includes receiving a user-triggered action intended to activate the avalanche safety system, 210.
  • the user-triggered action may include a physical operation or gesture such as pulling a ripcord or depressing a button.
  • the act of receiving a user-triggered action may include receiving a non-physical operation.
  • the method transmits ambient air to the inflatable chamber, 220.
  • the act of transmitting ambient air to the inflatable chamber may include generating a vacuum that transmits ambient air through an internal airway channel to the inflatable chamber.
  • the act of generating a vacuum may include using a fan and/or other electrical components.
  • the inflatable chamber is inflated, act 230.
  • the act of inflating the inflatable chamber may include inflation entirely with ambient air.
  • the act of inflating the inflatable chamber may also include forming a particular three dimensional shape and internal pressure of the inflatable chamber.
  • the inflation of the inflatable chamber thereby protects the user from an avalanche, act 240.
  • the act of protecting the user from an avalanche may include cushioning the user from impact during the avalanche, elevating the user above the avalanche debris, and/or providing a breathing receptacle of ambient air.
  • Figure 7A illustrates a user 200 with an avalanche safety system 100 in accordance with embodiments of the present invention.
  • the user 200 is wearing the system 100 via a backpack harness structure including a set of hip/waist straps 124 and shoulder straps 122.
  • the system includes an activation system 190 (not shown), inflation system 160, and inflatable chamber 140 as described above.
  • Figure 7A illustrates the inflatable chamber 140 in the compressed state so as to be contained within a region of the backpack.
  • the system illustrated in Figure 7A has not been activated, and therefore the user has not performed any type of user-triggered action upon the activation system 190.
  • the user Prior to Figure 7B , the user performs a particular user-triggered action such as pulling a ripcord or pressing a button to activate the system 100.
  • the activation system includes an electrical coupling that activates the components of the inflation system 160.
  • activation of the activation system 190 may include switching a switch so as to remove electrical resistance between a battery and other electrical components.
  • the inflation system 160 transmits ambient air to the inflatable chamber 140.
  • Figure 7B represents the transition from the compressed state to the inflated state of the inflatable chamber 140.
  • the inflatable chamber 140 is partially filled with ambient air directed through an air intake 180, internal airway channel 168, and fan 164.
  • a controller 172 may be used to inflate the inflatable chamber 140 according to a particular inflation profile.
  • the inflation system 160 automatically translates in response to the inflation of the inflatable chamber 140.
  • the inflation system 160 is disposed within a region that is translating to the right as the inflatable chamber 140 is expanding.
  • the inflation system 160 may be housed within a region with a releasable coupling (such as VELCRO) to the remainder of the system, thereby enabling automatic displacement in response to inflation.
  • Figure 7C illustrates complete transition to the inflated state of the inflatable chamber 140.
  • the inflatable chamber 140 thereby forms a particular three dimensional shape and has a particular pressure.
  • the particular three dimensional shape and pressure of the inflatable chamber are specifically selected to protect the user 200 from impact and provide flotation during an avalanche.
  • Various alternative shapes and pressures may be utilized in accordance with embodiments of the present invention.
  • the pressure within the inflatable chamber may be maintained for a particular time using a one way valve that seals the inlet from transmitting air out from the inflatable chamber 140.
  • the controller 172 may be configured to shut off and/or restart the fan 164 after a certain amount of time corresponding to complete inflation of the inflatable chamber 140.
  • FIGS 8A-8B illustrate an alternative inflation system embodiment including cross sectional views of the inflation and deflation states of the fan 264 and internal airway channel 268.
  • the fan 264 is moveably coupled within the internal airway channel 268 to facilitate the transition between the inflation position ( Figure 8A ) and the deflation position ( Figure 8B ) with respect to the internal airway channel 268.
  • the inflatable chamber 240 is coupled to the internal airway channel 268 at a coupling location 242 between the fan 264 and the air intake (not shown). The coupling location 242 on the internal airway channel 268 is therefore proximal to the air intake (not shown) with respect to the fan 264.
  • the illustrated fan 264 includes a fan housing 304, a fan 302, a supportive member 306, and a fan housing opening 308.
  • the illustrated internal airway channel 268 includes a channel 312, a channel opening 314, a supportive slot 316, and a valve 318.
  • the fan housing 304 of the fan 264 is shaped to correspond to an internal region of the channel 312 of the internal airway channel 268 so as to facilitate the moveable coupling.
  • the illustrated fan housing 304 and channel 312 are cylindrically shaped and cross-sectionally sized to facilitate that the rotatable movement of the fan housing 304 within the channel 312.
  • the fan 302 may be a bidirectional electric motorized fan configured to rotate at a particular speed and direction corresponding to an input current and polarity.
  • the fan 302 is electrically coupled to the activation system (not shown).
  • the supportive member 306 may be a protrusion or pin externally extending orthogonal from the fan housing 304.
  • the supportive member 306 is disposed at a first radial position on the external surface of the fan housing 304.
  • the fan housing opening 308 is a recess or opening in the external surface of the fan housing 308 that permits a channel between an internal region and an external region.
  • the fan housing opening 308 is disposed at a second radial position on the external surface of the fan housing 308.
  • the channel 312 of the internal airway channel 268 is an elongated member that extends between the inflatable chamber 240 and the air intake (not shown).
  • the channel 312 includes a substantially enclosed internal region to facilitate the transmission of air.
  • the channel opening 314 is an opening in the channel 312 between the substantially enclosed internal region and an external region.
  • the channel opening 314 is disposed at a first radial position on the external surface of the channel 312.
  • the supportive slot 316 is a recess or opening in at least the internal surface of the channel 312 configured to correspond to the supportive member 306 of the fan 264.
  • the supportive slot 316 is shaped to permit the supportive member 306 to move between at least two positions in at least one radial plane.
  • the illustrated supportive slot 316 is shaped to permit the corresponding illustrated supportive member 306 to move in both a rotational plane and a lengthwise plane.
  • the supportive slot 316 is disposed at a second radial position on the channel 312.
  • the valve 318 is disposed on a distal end of the channel 312 adjacent to the inflatable member 240.
  • the valve 318 is oriented and configured to both permit air flow away from the channel 312 into the inflatable chamber 240 and restrict air flow out of into the channel 312 away from the inflatable chamber 240.
  • the orientation and configuration of the valve 318 permits the inflatable chamber 240 to inflate and maintain a particular internal air pressure.
  • Various valves may be used in accordance with embodiments of the present invention.
  • the inflation position of the fan 264 illustrated in Figure 8A is configured to enable the active transmission of ambient air 400 through the internal airway channel 268 and into the inflatable chamber 240.
  • the illustrated fan 264 is configured to move both rotationally and lengthwise with respect to the internal airway channel 268.
  • the inflation position of the fan 264 is configured to not rotationally align the fan housing opening 308 and the channel opening 314, thereby containing all air within the internal region of the channel 312.
  • the inflation position of the fan 264 corresponds to a particular rotational and lengthwise position of the fan housing 304 and supportive member 306 with respect to the channel 312 and supportive slot 306. respectively.
  • the rotation of the fan 302 configured to transmit ambient air 400 into the inflatable chamber 204 creates both a torque force and a rotational force configured to bias the fan 264 to move with respect to the internal airway channel 268 into the inflation position.
  • This biasing correspondence includes radially disposing the supportive member 306, fan housing opening 308, supportive slot 316, and channel opening 314 at particular radial locations.
  • the torque force and rotational force created by the fan 302 in the illustrated inflation position embodiment causes the fan 264 to rotate and translate in a manner than causes the supportive member 302 to translate rotationally and lengthwise through the supportive slot 316 to the illustrated bottom right location.
  • the valve 318 is also correspondingly oriented with respect to the fan 264 to permit air flow into the inflatable chamber 240.
  • the deflation position of the fan 264 illustrated in Figure 8B is configured to enable the active transmission of ambient air 500 from the inflatable chamber 240 and into the internal airway channel 268.
  • the illustrated fan 264 is configured to move both rotationally and lengthwise with respect to the internal airway channel 268.
  • the deflation position of the fan 264 is configured to rotationally align the fan housing opening 308 and the channel opening 314. Thereby, permitting air 500 from within the inflatable chamber 240 to transmit into the internal region of the channel 312.
  • the deflation position of the fan 264 corresponds to a particular rotational and lengthwise position of the fan housing 304 and supportive member 306 with respect to the channel 312 and supportive slot 306, respectively.
  • the rotation of the fan 302 configured to transmit ambient air 500 away from the inflatable chamber 204 creates both a torque force and a rotational force configured to bias the fan 264 to move with respect to the internal airway channel 268 into the deflation position.
  • This biasing correspondence includes radially disposing the supportive member 306, fan housing opening 308, supportive slot 316, and channel opening 314 at particular radial locations.
  • the torque force and rotational force created by the fan 302 in the illustrated deflation position causes the fan 264 to rotate and translate in a manner than causes the supportive member 302 to translate rotationally and lengthwise through the supportive slot 316 to the illustrated top left location.
  • the valve 318 is also correspondingly oriented with respect to the fan 264 to restrict air flow from the inflatable chamber 240 into the internal airway channel 268.
  • FIG. 9-11 illustrate an alternative inflation system 600 including a fan 680 and a housing 640.
  • the alternative inflation system 600 is coupled with respect to the internal airway channel of an avalanche safety system substantially adjacent to the inflatable chamber.
  • the housing 640 may be fixably coupled to the internal airway channel such that the fan 680 is moveable with respect to both the housing 640 and the internal airway channel.
  • the alternative inflation system 600 may be coupled within, partially within, and/or on an end region of the internal airway channel substantially adjacent to the inflatable chamber in accordance with embodiments of the present invention.
  • the housing 640 includes a first opening 642, a biasing magnet 644, a fan enclosure 646, a valve 648, and a second opening 650.
  • the illustrated housing 640 is shaped in a general capsule but it will be appreciated that various elongated shapes may be utilized in accordance with embodiments of the present invention.
  • the housing 640 is configured to contain the fan 680 and permit selective transmission of air through the first and second openings 642, 650.
  • the first and second openings 642, 650 are porous regions configured to permit air flow through a plurality of recesses/holes. The size of the recesses in the first and second openings 642, 650 may be configured to protect the fan from obstructions caused by transmission of solid and semi-solid objects.
  • the shape of the holes in the first and second openings 642, 650 may also be configured to provide structural integrity to the overall housing 640 shape. In addition, the holes may be shaped and oriented to affect one or more characteristics of the air flow.
  • the fan enclosure 646 is a region disposed between the first and second openings 642, 650 configured to moveably contain the fan 680.
  • the fan enclosure 646 is correspondingly shaped with the fan 640 to permit the fan 680 to move in at least one plane. In the illustrated embodiment, the fan enclosure 646 is configured to permit the fan 680 to translate lengthwise with respect to the housing 640.
  • the fan enclosure 646 includes an internal region that corresponds to the external shape of the fan 680 so as to permit the translation while maintaining containment within the housing 640.
  • the biasing magnet 644 is disposed substantially between the first opening 642 and the fan enclosure 646.
  • the illustrated fan enclosure 646 is cylindrically shaped to permit the lengthwise translation of the fan 680.
  • the biasing magnet 644 is polarized, positioned, and oriented to create a biasing coupling force with the fan 680 when it is positioned adjacent to the first opening 642 ( Figures 9A, 9C , 10A, 10C , 11A, 11C ).
  • a spring or other biasing mechanism may be used between the housing 640 and the fan 680 to generate the biasing force toward the position in which the fan 680 is substantially adjacent to the first opening 642.
  • the valve 648 is positioned between the fan enclosure 646 and the second opening. The valve is independently oriented to allow/unrestrict airflow directed away from the fan 680 and prevent/restrict airflow directed toward the fan 680.
  • the valve 648 includes at least one articulating member configured to pivot between a restricted position and various angled open positions. The restricted position includes orienting the at least one articulation member orthogonal to the lengthwise orientation of the housing 640 and covering a recess between the fan enclosure 646 and the second opening 650.
  • the various angled positions of the valve 648 include angling the at least one articulation member away from the fan enclosure 646at a particular angle.
  • the valve 648 may be composed of various materials, including but not limited to plastic and rubber.
  • the valve 648 is biased toward the restricted position, thereby restricting airflow between the fan enclosure 646 and the second opening 650.
  • the second opening 650 may be shaped to contain the valve in both the restricted position and the various angled open positions.
  • the fan 680 includes a blade 686 (not shown), electrical couplers (not shown), a fan magnet 682, a fan frame 684, and a deflation member 688.
  • the blade 686 may be any type of conventional fan blades including but not limited to a three pad angled configuration.
  • the blade 686 is electrically coupled to a motor (not shown) and to a set of electrical couplers (not shown) to enable bidirectional rotation.
  • the blade 686 is enclosed within an internal region of the fan frame 684 to support the orientation of the blade 686.
  • the fan frame 684 includes an external shaped region configured to correspond to the internal shape of the fan enclosure 646 of the housing 640.
  • the externally shaped region of the fan frame 684 is substantially cylindrically shaped and sized to correspond to the internal cylindrically shaped region of the fan enclosure 646.
  • the correspondence between the external shape of the fan frame 684 and the internal region of the fan enclosure 646 also permits the moveable translation of the fan frame 684.
  • the fan magnet 682 is disposed on a first lengthwise side of the fan frame 684 and is polarized, oriented, and positioned to correspond to the biasing magnet 644 of the housing 640. In particular, when the fan frame 684 is disposed adjacent to the first opening 642, the fan magnet 682 and biasing magnet 644 generate a biasing coupling force.
  • the deflation member 688 is an extended member disposed on a second lengthwise side of the fan frame 684 corresponding to the second opening 650 side of the fan enclosure 646.
  • the deflation member 688 is shaped, oriented, and positioned to angle open the valve 648 when the fan frame 684 is translated toward the second opening 650.
  • the inflation system 600 may be in a rest state ( Figures 9A , 10A , 11A ), a deflation state ( Figures 9B , 10B , 11B ), or an inflation state ( Figures 9C , 10C , 11C ). Each respective state will be described in more detail below.
  • the inflation system 600 is further configured to selectively engage both active inflation and deflation of a corresponding inflation chamber.
  • the selective engagement of the rest, deflation, and inflation states of the inflation system 600 are controlled by the activation system portion of the overall avalanche safety system.
  • the term "active" refers to the fan actively transmitting air within or out of the inflatable chamber.
  • a "passive" inflation/deflation would require a user to manually inflate or deflate the inflatable chamber via manual air transmission (blowing), physical force (opening or compression on the inflatable chamber), etc.
  • FIGS 9A , 10A , 11A illustrate the inflation system 600 in a default or rest state.
  • the rest state corresponds to any situation other than inflation or deflation of the inflatable chamber.
  • the rest position may correspond to the user wearing the avalanche safety system in a ready state while performing a skiing activity.
  • the rest position may correspond to maintaining the inflatable chamber in an inflated state after the inflation process.
  • the fan 680 is moveably contained within the fan enclosure 646 portion of the housing 640 to permit the fan 680 to translate in a lengthwise orientation.
  • the rest position of the fan 680 includes the fan 680 positioned substantially adjacent to the first opening 642. A biasing force generated by the biasing magnet 644 and the fan magnet 682 urge the fan 680 to translate toward the first opening 642.
  • the biasing force urges the fan 680 to translate toward first opening 642 and the rest position.
  • a similar biasing force may be generated alternatively by other biasing configurations between the fan 680 and the housing 640 including but not limited to an extension spring.
  • the valve 648 is in the restricted position, thereby covering the recess between the fan enclosure 646 and the second opening 650.
  • the restricted position also restricts all airflow between the fan enclosure 646 and the second opening 650.
  • the deflation member 688 is contained within the fan enclosure 646 and does not affect the valve 648.
  • FIGS 9B , 10B , 11B illustrate the inflation system 600 in a deflation state.
  • the deflation state is configured to actively transmit air out of the inflatable chamber. Therefore, the deflation state of the inflation system 600 corresponds to actively transmitting air from the second opening 650 to the first opening 642 via the fan 680.
  • the fan blade 686 is selectively engaged to rotate in an orientation that causes a thrust force 700 upon the fan frame 684 oriented toward the second opening 650. The thrust force 700 thereby causes the fan 680 to translate within the fan enclosure 646 toward the second opening 650.
  • the biasing force generated between the biasing magnet 644 and the fan magnet 682 is specifically configured to enable the thrust force 700 to overcome the biasing force and thereby permit the fan 680 to translate toward the second opening 650.
  • the translation of the fan 680 thereby causes the deflation member 688 to push open the valve 648 of the housing 640.
  • the opening of the valve 648 creates an airflow channel between the second opening 650 and the first opening 642.
  • the rotation of the fan blade 686 simultaneously to the thrust force 700 produces an airflow force 750 oriented from the second opening 650 to the first opening 642.
  • the air flow force 750 thereby actively transmits air from the second opening 650 to the first opening 642 and correspondingly transmits air out of the inflatable chamber coupled to the second opening (not shown).
  • the activation system may deactivate the rotation of the fan blade 686, causing the inflation system to return to the rest state ( Figures 9A , 10A , 11A ).
  • the activation system may be configured to automatically engage the deflation state of the inflation system 600 according to a particular operational algorithm.
  • the operational algorithm may include various parameters including but not limited to a duration of time subsequent to inflation, a user-selected action indicating accidental inflation, a gyroscopic position, etc.
  • the activation system may also be configured to automatically shut off the deflation state according to one or more criteria such as the complete deflation of the inflatable chamber.
  • FIGS 9C , 10C , 11C illustrate the inflation system 600 in an inflation state.
  • the inflation state is configured to actively transmit air into of the inflatable chamber so as to pressurize the inflatable chamber to a particular pressure. Therefore, the inflation state of the inflation system 600 corresponds to actively transmitting air from the first opening 642 to the second opening 650 via the fan 680.
  • the fan blade 686 is selectively engaged to rotate in an orientation that causes a thrust force 700 upon the fan frame 684 oriented toward the first opening 650.
  • the thrust force 700 thereby urges the fan 680 to translate within the fan enclosure 646 toward the first opening 642.
  • the translation of the fan 680 thereby causes the deflation member 688 to be contained within the fan enclosure 646 of the housing 640.
  • the air flow force 750 thereby actively transmits air from the first opening 642 to the second opening 650 and correspondingly transmits air into the inflatable chamber from the internal airway channel and air intake (not shown).
  • the activation system may be configured to automatically disengage the inflation state of the inflation system 600 when the inflatable chamber is pressurized to a particular pressure and/or if a user action indicates that the selective inflation was accidental or a mistake.
  • FIGS 12A-B illustrate an avalanche safety system with an alternative inflation system including an automatic deflation configuration that utilizes a valve disposed on an external surface of the inflatable chamber, designated generally at 800.
  • the illustrated deflation system may be incorporated within either a fan based inflation system ( Figures 1-11 ) or via a conventional compressed gas based inflation system.
  • the illustrated system 800 includes an inflatable chamber 820, a harness 830, a deflation mechanism 810, and a controller 840.
  • the deflation mechanism 810 is disposed on an external surface of the inflatable chamber 820, thereby creating an independent channel between the internal region of the inflatable chamber 820 and the ambient region external of the system 800.
  • the illustrated harness 830 is a backpack similar to the embodiments illustrated in Figures 1- 7 .
  • the controller 840 is coupled to the deflation mechanism 810 so as to enable remote operation.
  • the controller 840 may include various electrical components including but not limited to a power source, switch, processor, sensor, etc.
  • the controller 840 may include various sensors and processors so as to coordinate operation of the deflation mechanism 810 with one or more values.
  • the one or more values may include time and three dimensional position of the user.
  • the controller 840 may be configured to automatically activate the deflation mechanism 810 after a particular period of time and/or a particular three dimensional position of the user.
  • a processor may record time after the inflatable chamber is inflated, and a gyroscopic sensor may detect the three dimensional position of the user. Therefore, the deflation mechanism 810 may be automatically engaged if either a particular period of time passes after inflation or the user is oriented in a manner that corresponds to a likely burial.
  • the deflation mechanism 810 further includes a valve 812, actuator 814, and controller coupling 816.
  • the illustrated valve 812 is a circular recess rotational valve.
  • the valve 812 includes an open state (illustrated in Figure 12A ) and a closed state (illustrated in Figure 12B ).
  • the open state of the valve 812 opens a channel between an external ambient region and the internal region of the inflatable chamber 820.
  • the closed state of the valve 812 obstructs the channel to the internal region of the inflatable chamber 820. It will be appreciated that the illustrated channel to the internal region of the inflatable chamber 820 is independent of the internal channel through which the inflatable chamber is inflated.
  • the valve 812 is coupled to the actuator 814.
  • the actuator 814 is configured to receive an electrical input via the controller coupling 816 and mechanically switch the valve 812 between the open and closed states. For example, a particular current may be transmitted from the controller 840 to the actuator 814 via the controller coupler 816, thereby causing the actuator 814 to mechanically transition the valve 812 from the closed state to the open state. Likewise, when the electrical current is removed, the actuator 814 may automatically transition the valve 812 from the open state back to the closed state. It will be appreciated that various types of remote operation valves may be utilized in accordance with embodiments of the present invention.
  • FIG. 13A-B illustrate an avalanche safety system with an alternative inflation system including an automatic deflation configuration that includes a valve disposed on a portion of the harness, designated generally at 900.
  • the illustrated deflation system may be incorporated within either a fan based inflation system ( Figures 1-11 ) or via a conventional compressed gas based inflation system.
  • the illustrated system 900 includes an inflatable chamber 920, a harness 930, a deflation mechanism 910, and a controller 940.
  • the deflation mechanism 910 is disposed on an external surface of the harness 930, thereby creating a channel between the internal region of the inflatable chamber 820 and the ambient region external of the system 900.
  • the illustrated harness 930 is a backpack similar to the embodiments illustrated in Figures 1-7 .
  • the controller 940 is coupled to the deflation mechanism 910 so as to enable remote operation.
  • the controller 940 may include various electrical components, including but not limited to a power source, switch, processor, sensor, etc.
  • the controller 940 may include various sensors and processors so as to coordinate operation of the deflation mechanism 910 with one or more values.
  • the one or more values may include time and three dimensional position of the user.
  • the controller 940 may be configured to automatically activate the deflation mechanism 910 after a particular period of time and/or a particular three dimensional position of the user.
  • a processor may record time after the inflatable chamber is inflated, and a gyroscopic sensor may detect the three dimensional position of the user. Therefore, the deflation mechanism 910 may be automatically engaged if either a particular period of time passes after inflation or the user is oriented in a manner that corresponds to a likely burial.
  • the deflation mechanism 910 further includes a valve 912, actuator 914, and controller coupling 916.
  • the illustrated valve 912 is a circular recess rotational valve.
  • the valve 912 includes an open state (illustrated in Figure 13A ) and a closed state (illustrated in Figure 13B ).
  • the open state of the valve 912 opens a channel between an external ambient region and the internal region of the inflatable chamber 920.
  • the closed state of the valve 912 obstructs the channel to the internal region of the inflatable chamber 920. It will be appreciated that the illustrated channel to the internal region of the inflatable chamber 820 may overlap or depend on the internal channel through which the inflatable chamber is inflated.
  • the valve 912 is coupled to the actuator 914.
  • the actuator 914 is configured to receive an electrical input via the controller coupling 916 and mechanically switch the valve 912 between the open and closed states. For example, a particular current may be transmitted from the controller 940 to the actuator 914 via the controller coupler 916, thereby causing the actuator 914 to mechanically transition the valve 912 from the closed state to the open state. Likewise, when the electrical current is removed, the actuator 914 may automatically transition the valve 912 from the open state back to the closed state. It will be appreciated that various types of remote operation valves may be utilized in accordance with embodiments of the present invention.

Claims (24)

  1. Aufblasbares Lawinen-Sicherheitssystem (100), umfassend:
    eine aufblasbare Kammer (140) mit einem komprimierten Zustand und einem aufgeblasenen Zustand, wobei der aufgeblasene Zustand einen unter Druck stehenden dreidimensionalen Bereich in der Nähe eines Benutzers (200) bildet;
    ein Aufblassystem (160), das konfiguriert ist, um aktiv Umgebungsluft innerhalb der aufblasbaren Kammer (140) mit einem Gebläse (164) zu leiten, wodurch die aufblasbare Kammer (140) von dem komprimierten Zustand in den aufgeblasenen Zustand übergeht, und wobei das Aufblassystem (160) ferner konfiguriert ist, um aktiv Umgebungsluft von der aufblasbaren Kammer (140) außerhalb des Systems mit dem Gebläse (164) zu leiten, wodurch die aufblasbare Kammer (140) von dem aufgeblasenen Zustand in den komprimierten Zustand übergeht;
    ein Aktivierungssystem (190), das konfiguriert ist, um das Aufblassystem (160) zu aktivieren; und
    ein Gurtzeug (120), das so konfiguriert ist, dass es die aufblasbare Kammer (140), das Aktivierungssystem (190) und das Aufblassystem (160) in der Nähe des Benutzers (200) hält.
  2. System nach Anspruch 1, wobei das Aufblassystem (160) so konfiguriert ist, dass es das Gebläse (164) in zwei entgegengesetzte Richtungen bewegt, die jeweils einer Aufblasposition und einer Entleerungsposition entsprechen.
  3. System nach Anspruch 1, wobei das Aufblassystem (160) ferner umfasst:
    einen Lufteinlass (180); und
    einen inneren Luftkanal (168), der sowohl mit dem Lufteinlass (180) als auch mit der aufblasbaren Kammer (140) verbunden ist, und wobei das Gebläse (164) in Bezug auf den inneren Luftkanal (168) an einer Position angeordnet ist, die im Wesentlichen an die aufblasbare Kammer (140) angrenzt.
  4. System nach Anspruch 3, wobei der innere Luftkanal (168) ferner ein Ventil enthält, das innen zwischen dem Gebläse (164) und der aufblasbaren Kammer (140) angeordnet ist, wobei das Ventil so konfiguriert ist, dass es eine Durchleitung innerhalb des inneren Luftkanals (168) erlaubt, der zwischen dem Gebläse (164) und der aufblasbaren Kammer (140) ausgerichtet ist, und die Durchleitung innerhalb des inneren Luftkanals (168) einschränkt, der zwischen der aufblasbaren Kammer (140) und dem Gebläse (164) ausgerichtet ist.
  5. System nach Anspruch 3, wobei der innere Luftkanal (168) ein Gehäuse aufweist, das fest mit und im Wesentlichen angrenzend an der aufblasbaren Kammer (140) verbunden ist, und wobei das Gebläse (164) innerhalb des Gehäuses angeordnet ist.
  6. System nach Anspruch 1, wobei das System ferner umfasst:
    einen Lufteinlass (180);
    einen inneren Luftkanal (168), der sowohl mit dem Lufteinlass (180) als auch mit der aufblasbaren Kammer (140) verbunden ist, und wobei das Gebläse (164) in Bezug auf den inneren Luftkanal (168) an einer Position angeordnet ist, die im Wesentlichen an die aufblasbare Kammer (140) angrenzt;
    wobei der innere Luftkanal (168) ferner ein Ventil enthält, das zwischen dem Gebläse (164) und der aufblasbaren Kammer (140) angeordnet ist, wobei das Ventil so konfiguriert ist, dass es eine Durchleitung innerhalb des inneren Luftkanals (168) erlaubt, der zwischen dem Gebläse (164) und der aufblasbaren Kammer (140) ausgerichtet ist, und die Durchleitung innerhalb des inneren Luftkanals (168) einschränkt, der zwischen der aufblasbaren Kammer (140) und dem Gebläse (164) ausgerichtet ist; und
    wobei das Gebläse (164) innerhalb des inneren Luftkanals (168) zwischen einer Aufblasposition und einer Entleerungsposition beweglich ist.
  7. System nach Anspruch 6, wobei die bewegliche Konfiguration des Gebläses (164) eine Verschiebungsbewegung zwischen der Aufblasposition und der Entleerungsposition umfasst.
  8. System nach Anspruch 6, wobei die Bewegung des Gebläses (164) in Bezug auf den inneren Luftkanal (168) so konfiguriert ist, dass sie automatisch der Drehrichtung des Gebläses (164) entspricht.
  9. System nach Anspruch 6, wobei die automatische Entsprechung der Bewegung des Gebläses (164) in Bezug auf die Drehrichtung des Gebläses (164) die Verschiebung des Gebläses (164) innerhalb des inneren Luftkanals (168) als Reaktion auf die vom Gebläse (164) erzeugte Schubkraft umfasst.
  10. System nach Anspruch 6, wobei das Gebläse (164) ein Stützelement und der innere Luftkanal (168) einen Stützschlitz aufweist, und wobei das Stützelement des Gebläses (164) innerhalb des Stützschlitzes des inneren Kanals zwischen einer aufblasunterstützenden Position und einer entleerungsunterstützenden Position beweglich gekoppelt ist, und wobei die aufblasunterstützende Position der Aufblasposition des Gebläses (164) innerhalb des internen Luftkanals (168) entspricht und die entleerungsunterstützende Position der Entleerungsposition des Gebläses (164) innerhalb des inneren Luftkanals (168) entspricht.
  11. System nach Anspruch 6, wobei das Gebläse (164) einen Gebläsemagneten und der innere Luftkanal (168) einen Vorspannmagneten aufweist und wobei die Aufblasposition des Gebläses (164) einem Eingriff einer lösbaren Kupplung zwischen dem Gebläsemagneten und dem Vorspannmagneten entspricht, wodurch die Position des Gebläses (164) in Bezug auf den inneren Luftkanal (168) vorgespannt wird.
  12. System nach Anspruch 6, wobei das Gebläse (164) ein Entleerungselement enthält, das so konfiguriert ist, dass es das Ventil in der Entleerungsposition öffnet.
  13. System nach Anspruch 12, wobei das Entleerungselement so am Gebläse (164) angeordnet und ausgerichtet ist, dass es der Position und Ausrichtung des Ventils innerhalb des inneren Luftkanals (168) entspricht.
  14. System nach Anspruch 1, wobei das Aktivierungssystem (190) so konfiguriert ist, dass es die aufblasbare Kammer (140) nach dem Aufblasen der aufblasbaren Kammer (140) nach einer bestimmten Zeitspanne automatisch entleert.
  15. System nach Anspruch 1, wobei das Aktivierungssystem (190) so konfiguriert ist, dass es die aufblasbare Kammer (140) nach dem Aufblasen der aufblasbaren Kammer (140) basierend auf einem Algorithmus automatisch entleert, wobei der Algorithmus mindestens eines der folgenden Punkte umfasst: Empfangen einer Benutzer-Entleerungsaktion, eine bestimmte Zeit nach dem Aufblasen der aufblasbaren Kammer (140), eine Temperatur, einen Druck und eine gyroskopische Position.
  16. Verfahren zum Entleeren einer aufblasbaren Kammer (140), folgende Schritte umfassend:
    Bereitstellen eines aufblasbaren Lawinen-Sicherheitssystems (100), umfassend:
    eine aufblasbare Kammer (140) mit einem komprimierten Zustand und einem aufgeblasenen Zustand, wobei der aufgeblasene Zustand einen unter Druck stehenden dreidimensionalen Bereich in der Nähe eines Benutzers (200) bildet;
    ein Aufblassystem (160), das konfiguriert ist, um aktiv Umgebungsluft innerhalb der aufblasbaren Kammer (140) mit einem Gebläse (164) zu leiten, wodurch die aufblasbare Kammer (140) von dem komprimierten Zustand in den aufgeblasenen Zustand übergeht, und wobei das Aufblassystem (160) ferner konfiguriert ist, um aktiv Umgebungsluft von der aufblasbaren Kammer (140) außerhalb des Systems mit dem Gebläse (164) zu leiten, wodurch die aufblasbare Kammer (140) von dem aufgeblasenen Zustand in den komprimierten Zustand übergeht;
    ein Aktivierungssystem (190), das konfiguriert ist, um das Aufblassystem (160) zu aktivieren; und
    ein Gurtzeug (120), das so konfiguriert ist, dass es die aufblasbare Kammer (140), das Aktivierungssystem (190) und das Aufblassystem (160) in der Nähe des Benutzers (200) hält, wobei das Gebläse (164) in einer Drehausrichtung entgegengesetzt zu einer Ausrichtung gedreht wird, die so konfiguriert ist, dass sie Umgebungsluft innerhalb der aufblasbaren Kammer (140) leitet;
    automatisches Öffnen eines Kanals zwischen einem inneren Bereich der aufblasbaren Kammer (140) und einer äußeren Position; und
    Aktives Leiten der Umgebungsluft aus der aufblasbaren Kammer (140) außerhalb des Systems, wodurch die aufblasbare Kammer (140) vom aufgeblasenen Zustand in den komprimierten Zustand übergeht.
  17. Verfahren nach Anspruch 16, wobei der Schritt des automatischen Öffnens eines Kanals zwischen einem inneren Bereich der aufblasbaren Kammer (140) und einer äußeren Position ferner das automatische Bewegen des Gebläses (164) als Reaktion auf eine durch die Gebläsedrehung erzeugte Kraft umfasst.
  18. Verfahren nach Anspruch 16, wobei der Schritt des automatischen Öffnens eines Kanals zwischen einem inneren Bereich der aufblasbaren Kammer (140) und einer äußeren Position ferner das automatische Öffnen eines Ventils als Reaktion auf die durch die Gebläsedrehung erzeugte Kraft umfasst.
  19. Verfahren nach Anspruch 16, wobei der Schritt des automatischen Öffnens eines Kanals zwischen einem inneren Bereich der aufblasbaren Kammer (140) und einer äußeren Position ferner das automatische Verschieben des Gebläses (164) in eine Position umfasst, die ein Ventil als Reaktion auf die durch die Gebläsedrehung erzeugte Kraft öffnet.
  20. System nach Anspruch 1, wobei das Aufblassystem (160) so konfiguriert ist, dass es automatisch aktiv ein Gas aus der aufblasbaren Kammer (140) mit dem Gebläse (164) außerhalb des Systems leitet,
  21. System nach Anspruch 20, wobei das Aufblassystem (160) so konfiguriert ist, dass es das Gas über einen ersten Kanal in die aufblasbare Kammer (140) leitet, wodurch die aufblasbare Kammer (140) von dem komprimierten Zustand in den aufgeblasenen Zustand übergeht, und wobei das Aufblassystem (160) ferner so konfiguriert ist, dass es das Gas automatisch über einen zweiten Kanal aus der aufblasbaren Kammer (140) außerhalb des Systems leitet, wodurch die aufblasbare Kammer (140) von dem aufgeblasenen Zustand in den komprimierten Zustand übergeht, und wobei der erste und der zweite Kanal unabhängig sind.
  22. System nach Anspruch 21, wobei der zweite Kanal ein Ventil umfasst, das an einer äußeren Fläche der aufblasbaren Kammer (140) angeordnet ist.
  23. System nach Anspruch 20, wobei das Aufblassystem (160) so konfiguriert ist, dass es das Gas über einen ersten Kanal in die aufblasbare Kammer (140) leitet, wodurch die aufblasbare Kammer (140) von dem komprimierten Zustand in den aufgeblasenen Zustand übergeht, und wobei das Aufblassystem (160) ferner so konfiguriert ist, dass es das Gas automatisch über einen zweiten Kanal aus der aufblasbaren Kammer (140) außerhalb des Systems leitet, wodurch die aufblasbare Kammer (140) von dem aufgeblasenen Zustand in den komprimierten Zustand übergeht, und wobei der erste und der zweite Kanal einen inneren Kanal durch das Gurtzeug (120) hindurch umfassen.
  24. System nach Anspruch 23, wobei der zweite Kanal ein auf dem Gurtzeug (120) angeordnetes Ventil umfasst.
EP12196973.7A 2011-12-13 2012-12-13 Systeme und Verfahren für aufblasbaren Lawinenschutz mit aktiver Abblasung Active EP2604318B1 (de)

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US13/324,788 US9004116B2 (en) 2011-12-13 2011-12-13 Systems and methods for inflatable avalanche protection
US13/324,840 US9289633B2 (en) 2011-12-13 2011-12-13 Systems and methods for inflatable avalanche protection
US13/598,561 US8851949B2 (en) 2011-12-13 2012-08-29 Systems and methods for inflatable avalanche protection with active deflation

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CN103919304B (zh) * 2014-04-01 2015-04-22 朱其厚 主动式送风口罩
CH711728A2 (de) 2015-11-05 2017-05-15 Airtrader Gmbh Lawinenschutzeinrichtung.
EP3812011A1 (de) 2019-10-25 2021-04-28 RAS Technology S.à.r.l. Aufblasbarer beutel, lawinenrucksack und verfahren zum entleeren eines aufblasbaren beutels

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CA2237627C (en) * 1995-05-09 2007-01-23 Peter Aschauer Lifesaving device for people in avalanches
DE19703656A1 (de) * 1997-01-31 1998-08-06 Peter Aschauer Lawinenrettungssystem
US7270077B2 (en) * 2005-09-12 2007-09-18 Ralph Frank Beck Avalanche survival kit
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