US3657740A - Ventilated welder{3 s mask assembly - Google Patents

Ventilated welder{3 s mask assembly Download PDF

Info

Publication number
US3657740A
US3657740A US3657740DA US3657740A US 3657740 A US3657740 A US 3657740A US 3657740D A US3657740D A US 3657740DA US 3657740 A US3657740 A US 3657740A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
air
mask
wall
hose
fig
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.)
Expired - Lifetime
Application number
Inventor
Armando A Cialone
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ARMANDO A CIALONE
Original Assignee
ARMANDO A CIALONE
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.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/04Eye-masks ; Devices to be worn on the face, not intended for looking through; Eye-pads for sunbathing
    • A61F9/06Masks, shields or hoods for welders
    • A61F9/068Masks, shields or hoods for welders with supply or suction of gas, air or smoke inside or outside the welding hood
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S2/00Apparel
    • Y10S2/905Electric
    • Y10S2/906Head covering or protector

Abstract

A ventilated welder''s mask assembly in which the user''s head is subjected to a stream of air for cooling purposes, which air stream maintains a slightly higher pressure that that of the ambient atmosphere within the mask to minimize the possible entry of toxic fumes into the latter. The stream of air into the mask is supplied from a supported electrically operated blower unit worm by the user, but with the unit being removably connectable to a flexible hose that extends to a source of fresh air under pressure remote from the welding area. The unit is connected to a hose in the manner described when the mask assembly is worn in a confined spaced in which toxic fumes are present.

Description

United States Patent Cialone ['45] Apr. 25, 1972 1 VENTILATED WELDERS MASK ASSEMBLY Armando A. Cialone, 5304 Killder, Long [72] Inventor:

Beach, Calif. 90808 [22] Filed: Nov. 26, 1969 [21] Appl. No.2 880,054

[52] U.S.Cl ..2/8,2/171.3,128/142.3,

, Y 128/ 142.7 [51] Int. Cl. ..A6lf 9/06 [58] Field ol'Search....; ..'2/8,9, 10, 3,171.3;

[56] References Cited UNITED STATES PATENTS 2,314,078 3/1943 Crawford ..239/590.5 2,882,894 4/1959 Fahey et a1 ..2/8 UX 3,413,972 12/1968 Depping ...128/142.7 3,467,965 9/1969 Murphy ..2/8 3,496,703 2/1970 MacLeod et a1 ..l28/142.7 X

FOREIGN PATENTS OR APPLICATIONS 732,248 6/1955 Great Britain ..2/l0

Primary Examiner-James R. Boler Attorney-William C. Babcock [57] ABSTRACT A ventilated welders mask assembly in which the users head is subjected to a stream of air for cooling purposes, which air stream maintains a slightly higher pressure that that of the ambient atmosphere within the mask to minimize the possible entry of toxic fumes into the latter.

The stream of air into the mask is supplied from a supported I electrically operated blower unit worm by the user, but with the unit being removably connectable to a flexible hose that extends to a source of fresh air under pressure remote from the welding'area. The unit is connected to a hose in the manner described when the mask assembly is worn in a confined spaced in which toxic fumes are present.

1 Claim, 6 Drawing Figures PATENTEDAPRZSS 1912 3.657. 740

u 7 INVENTOR.

flank/v00 b'mL ONE 40 84 44 lmlamlmliw 52 4% BY 5 aw %W 02 Arr-02m BACKGROUND OF THE INVENTION 1 Field of the Invention A ventilated welders mask assembly that may be worn not only for cooling purposes, but to minimize the danger to the wearer thereof from exposure to toxic fumes.

2. Description of the Prior Art In the past, various types of welders masks have been devised and used in which fresh air has been fed into the interior thereof through a flexible hose to not only cool the head of the welder, but to minimize the possibility of exposing the welder to toxic fumes. Connection of an air supply hose to a welders mask seriously impedes the movement of the welder, which is undesirable unless absolutely necessary, such as when a welder is working in a confined space with a minimum of effective vantilation. Normally, but a small percentage of a we]- ders time is spent working in such confined spaces.

The present invention provides a mask assembly by which a welder is supplied with a current of air for cooling purposes, without the necessity of connecting the assembly to an air supply hose that restricts the welders movement, but with the assembly being removably connectable to such a hose when required, such as when a welder is working in a confined space, containing toxic fumes.

The present invention overcomes the operational disadvantages of prior ventilated welders mask assemblies by providing one that may be worn without a hose connected thereto, but with the assembly being connectable to an air supply hose when necessity so requires.

SUMMARY OF THE INVENTION The invention includes a welders mask, which by a flexible conduit, is connected to an electrically operated blower unit that is preferably supported from a belt worn by the welder, with the blower unit when actuated, supplying a constant stream of air to the mask for cooling the welders head. Means is provided on the blower unit for connecting a free end of a flexible hose to the interior of the unit. The flexible hose extends to a source of fresh air under pressure, and is connected to the blower unit, only when the welder wearing the mask assembly is working in a confined space having poor ventilation, such as the hold of a ship. When the welding assembly is supplied with fresh air by actuation of the blower unit, the welder wearing the same is free to move without restriction.

A major object of the present invention is to provide a ventilated welders mask assembly which when worn, supplies a constant stream of fresh air that discharges about the welders head for cooling purposes, with this cooling effect being achieved without restriction of movement of the welder, as occurs when the mask assembly is connected to a flexible hose extending to a source of fresh air under pressure located in an area remote from that in which the welder is operating.

Another object of the invention is to supply a ventilated welders mask assembly that may be worn as a self-contained unit to permit the welder maximum flexibility of movement, but if necessary the unit may be removably engaged by an air supply hose that provides the welder with uncontaminated air.

A still further object of the invention is to supply a ventilated welders mask assembly of relatively simple mechanical structure which may be fabricated from standard, commercially available materials, is simple and easy to use, and may be retailed at a substantially low price as to encourage widespread use thereof.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 3 is a fragmantary cross-sectional view of the mask,

taken on the line 33 of FIG. 2;

FIG. 4 is a vertical cross-sectional view of the blower unit assembly, taken on the line 44 of FIG. I;

FIG. 5 is a fragmantary cross-sectional view of the blower unit assembly, taken on the line 5-5 of FIG. 1; and

FIG. 6 is a perspective view of a central supply station for a number of flexible hose, each of which is adapted to be removably connected to one of the blower units shown in FIG. I to supply air under pressure to one of the welders helmet assemblies when the welder is working in a confined space containing toxic fumes.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A ventilated mask assembly A shown in FIG. 1 includes a conventional welders maskB formed from a hard rigid nonmetallic opaque material. The mask B includes a forward wall 10 that serves to support a dark glass insert 12 as is conventional with such devices. The forward wall 10 merges into a top wall 14 and two side walls 16. A head piece 18 (FIG; 2 is disposed within the upper confines of the mask, and is pivotally connected to the side walls 16 of the assembly A by pins 18a.

An air discharge member 20 is provided as may best be seen in FIGS. 1', 2, and 3, which includes upper and'lower walls 22 and 24. (FIG. 2) connected on their longitudinal edges by side walls 26. A number of partitions 28, as illustrated in FIG. 3, extends between the top wall 22 and lower wall 24, and cooperate therewith to define a member of longitudinal passages 30 that are so arranged as to distribute a stream of air overa relatively wide area as it discharges from the member 20. It will be noted in FIG. 3 that at least a part of the partitions 28 are angularly disposed relative to one another.

Air is discharged into the interior of member 20 through a tubular inlet 32 that extends outwardly from a rear wall 34 thereof. The air discharge member 20 is connected to the top wall 14 by clips 36 (FIG. 1), or other conventional fastening means.

An air inlet 32 is connected to a flexible conduit C, as shown in FIG. 1, and extends downwardly from the mask B where it is connected to an electrically actuaged blower unit D. The unit D, as may best beseen in FIG. 1, includes a closed box 45 that is defined by upper and lower walls 38 and 40 (FIG. 4 that are connected at their outer extremities by end walls 42 and 44, and first and second side walls 46 and 48.

The second side wall 48 that is removably secured to box 45 (FIG. 1) by conventional fastening means (not shown) or by hinge means (also not shown). A blower E is provided (FIG. 4) that includes two circular, laterally spaced flat 'discs 50, and a number of transverse blades 52 extend between the outer peripheral portions of the disc. A central opening 54 is formed in one of the discs 50 that is in communication with an opening 56 formed in the first side wall 46, as illustrated in FIG. 5. A grooved pulley 58 is secured to the center of that disc 50 most remote from the first side wall 46, and this pulley 58 is rotatably supported on a stub shaft 68 that projects from the second side wall 48.

A number of spaced partitions 70, 72, 74 project from the first side wall 46, which together with the top wall 38, lower wall 40, and second side wall 48 cooperatively define a battery compartment 76, a confined space 78 of circular transverse cross section in which the blower E rotates, and an air discharge passage 78 that is in communication with the blower E. The passage 78 terminates in a tubular air outlet 80 that projects upwardly from the top wall 38, and is se'alingly engaged by the lower end of the conduit C.

The confined space 76 serves to house a number of batteries 82 that are in electrical engagement with two resilient clips 84 supported within the box 45, as may best be seen in FIG. 2. The clips 84 serve to connect the batteries 82 to electrical conductors 86 that extend to the motor 66 and a switch 88 provided with an actuating handle 90 that projects through an opening 92 in end wall 44, as may best be seen in FIG. 1.

A filter unit 94 as seen in FIG. 5, includes a ring 96 and perforated wall 98 that is connected to a first edge portion of the ring. Ring 96 is removably held in the opening 56 by a circular projecting rib I00 that engages a recess 102 formed in first side wall 46, with this recess being in communication with the opening 56.

The unit 94 has a body of filtering material 104 situated within the confines of the ring 96, which filtering material is held between the perforated side wall 98 and a second perforated side wall 106 disposed inwardly from the opening 56, and forms a part of the first side wall 46. The blower unit D is preferably removably supported by conventional means (not shown) from a belt 108 that extends around the waist of the welder (not shown).

When the mask assembly A is in place on awelder in the condition shown in FIG. 1 the switch 88 is closed by movement of the handle 90, to complete an electric circuit between the batteries 82 and the motor 66. The motor 66 drives the blower E in a counterclockwise direction (FIG. 4) to draw air through the filter unit 94 and discharge the same upwardly through the passage 78 into conduit C through which the air flows to discharge from the member 20, as may be seen in FIG. 2. Due to the angular positioning of the passages 30, the air is distributed substantially evenly around the head for cooling purposes of the welder on which the mask A is mounted.

Two arcuate slots 1 are formed in the first side wall 46 on opposite sides of opening 56 and are adapted to be removably engaged by two .l-shaped members 112 that project outwardly from a cylindrical shell 114 shown in FIG. 6. The shell 114 is connected to a hose 116 that extends to a box 1 18 to which air under pressure is supplied through a conduit 120 which leads to a source of fresh air under pressure in an area remote from that in which the welding operation is taking place.

When the members 112 removably engage the slots 110, the outer edge 1140 of shell 114 are forced into sealing contact with the exterior surface of the first side wall 46 adjacent to the opening 56. After the air from hose 116 enters confined space 50 it flows between blades 52 to pass upwardly through the passage 78 into conduit C and then discharges through the passages 30 into the confines of the mask B to not only cool the welders head (not shown) when wearing the mask, but to build up a pressure within the mask that is slightly higher than the pressure of the ambient atmosphere exteriorly to the mask. Due to this positive pressure within the confines of the mask B, the welder wearing the mask may operate in a confined space containing toxic fumes without breathing the same. 7

The air supplied to the conduit 120 must be from an area exteriorly of the confined space in which a welder is operating if the confined space contains toxic fumes. The conduit 120 not only supplies fresh air to the interior of the box 118 for a single hose, but for a number of hoses 116, each of which extends to an individual mask assembly A. The hose 116 will normally be used only to supply air to the unit D when the mask assembly A is being used in a confined space containing toxic fumes.

I claim:

1. In combination with a welders mask including a forward wall that supports a dark glass panel, a top wall, and twoside walls extending rearwardly from said forward wall, a device for ventilating the interior of said mask, comprising:

a. portable electrically operatable blower means;

b. a flexible air discharge conduit extending from said blower means;

c. an air discharge member located on the rear interior portion of said top wall, said air discharge member connected to said conduit, said air discharge member being provided with a plurality of laterally spaced, longitudinally extending passages for distributing air from said conduit over the head of a welder wearing said mask for cooling purposes, as well as to maintain an air pressure in said mask slightly above that of the ambient atmosphere to prevent entry of toxic fumes into said mask with at least a portion of said passages in angular relationship;

d. means for removably supporting said blower means from the user of said mask; wherein said blower means is encased in a compact box, and said first means comprises a belt worn by said welder to which said box is secured e. means on said box for removably connecting an end of a flexible hose thereto to communicate with the interior thereof which hose extends to a source of fresh air under pressure at a location remote from the area atwhich a welding operation is conducted, with said hose, box, conduit, and discharge member cooperatively supplying fresh air to said mask in sufficient volume that a welder wearing said mask may operate in an atmosphere contaminated with toxic fumes without danger of breathing the latter; and

f. a tubular discharge member on the free end of said hose,

with said discharge member having a plurality of circumferentially spaced, L-shaped prongs projecting forwardly therefrom, and said means comprises a plurality of armate slots formed in a wall of said box around said opening, which slots are capable of being removably engaged by said prongs to support said discharge member from said box in communication with said opening.

Claims (1)

1. In combination with a welder''s mask including a forward wall that supports a dark glass panel, a top wall, and two side walls extending rearwardly from said forward wall, a device for ventilating the interior of said mask, comprising: a. portable electrically operatable blower means; b. a flexible air discharge conduit extending from said blower means; c. an air discharge member located on the rear interior portion of said top wall, said air discharge member connected to said conduit, said air discharge member being provided with a plurality of laterally spaced, longitudinally extending passages for distributing air from said conduit over the head of a welder wearing said mask for cooling purposes, as well as to maintain an air pressure in said mask slightly above that of the ambient atmosphere to prevent entry of toxic fumes into said mask with at least a portion of said passages in angular relationship; d. means for removably supporting said blower means from the user of said mask; wherein said blower means is encased in a compact box, and said first means comprises a belt worn by said welder to which said box is secured e. means on said box for removably connecting an end of a flexible hose thereto to communicate with the interior thereof which hose extends to a source of fresh air under pressure at a location remote from the area at which a welding operation is conducted, with said hose, box, conduit, and discharge member cooperatively supplying fresh air to said mask in sufficient volume that a welder wearing said mask may operate in an atmosphere contaminated with toxic fumes without danger of breathing the latter; and f. a tubular discharge member on the free end of said hose, with said discharge member having a plurality of circumferentially spaced, L-shaped prongs projecting forwardly therefrom, and said means comprises a plurality of arcuate slots formed in a wall of said box around said opening, which slots are capable of being removably engaged by said prongs to support said discharge member from said box in communication with said opening.
US3657740A 1969-11-26 1969-11-26 Ventilated welder{3 s mask assembly Expired - Lifetime US3657740A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US88005469 true 1969-11-26 1969-11-26

Publications (1)

Publication Number Publication Date
US3657740A true US3657740A (en) 1972-04-18

Family

ID=25375424

Family Applications (1)

Application Number Title Priority Date Filing Date
US3657740A Expired - Lifetime US3657740A (en) 1969-11-26 1969-11-26 Ventilated welder{3 s mask assembly

Country Status (1)

Country Link
US (1) US3657740A (en)

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3825953A (en) * 1973-06-20 1974-07-30 R Hunter Anti-fogging device for eye shields
US4011865A (en) * 1975-09-26 1977-03-15 Mitsu Morishita Dust-proof protection mask of face covering type
FR2416694A1 (en) * 1978-02-10 1979-09-07 Canadian Patents Dev Safety Helmet minor
US4195363A (en) * 1977-12-30 1980-04-01 Jenson Bernard T Perimeter draft welding hood
US4207882A (en) * 1978-03-16 1980-06-17 Lemere Cordell T Filter apparatus for welding mask
US4233972A (en) * 1978-05-08 1980-11-18 Wolfgang Hauff Portable air filtering and breathing assist device
EP0024133A1 (en) * 1979-07-28 1981-02-25 Marwin Foundry Units Limited Air supply units
US4320755A (en) * 1980-07-18 1982-03-23 Marwin Foundry Units Limited Air supply units
EP0087909A2 (en) * 1982-02-26 1983-09-07 Avon Industrial Polymers Limited Respirator air guide
EP0108560A1 (en) * 1982-11-01 1984-05-16 Racal Safety Limited Powered air supply units for respirators
US4478216A (en) * 1982-04-06 1984-10-23 H.G.D. Enterprises Ltd. Portable air filtration device
FR2556974A1 (en) * 1983-12-27 1985-06-28 Commissariat Energie Atomique ergonomic Helm
US4549542A (en) * 1983-07-25 1985-10-29 Chien Chao Huei Multiple-effect respirator
US4815458A (en) * 1986-07-28 1989-03-28 Peter Sing Protective breathing apparatus
US4868929A (en) * 1988-05-09 1989-09-26 Curcio Philip L Electrically heated ski goggles
US4890335A (en) * 1988-07-27 1990-01-02 Crowson Arnold E Ventilated welding shield
WO1993018726A1 (en) * 1992-03-23 1993-09-30 Arto Armas Helin Safety mask
US5353605A (en) * 1992-10-28 1994-10-11 Coolight Research & Development Ltd. Personal air cooling device
US5584286A (en) * 1993-01-13 1996-12-17 Kippax; John E. Integrated breathing system
US5655374A (en) * 1996-02-21 1997-08-12 Surgical Specialty Products, Inc. Surgical suit
WO2002030227A1 (en) * 2000-10-11 2002-04-18 The Secretary Of State For Defence Eye protection devices
US6382208B2 (en) 1998-11-02 2002-05-07 Board Of Regents University Of Nebraska System for controlling the internal temperature of a respirator
US6615828B1 (en) * 1999-03-19 2003-09-09 3M Innovative Properties Company Flow indicator device for respirators
US20040182394A1 (en) * 2003-03-21 2004-09-23 Alvey Jeffrey Arthur Powered air purifying respirator system and self contained breathing apparatus
US20050114986A1 (en) * 2003-12-01 2005-06-02 Hobart James M. Paint particle deflector
US6973676B1 (en) * 2003-09-02 2005-12-13 Elwood Jesse Bill Simpson Protective helmet with integral air supply
US20060048777A1 (en) * 2003-03-21 2006-03-09 Interspiro, Inc. Apparatus and method for providing breathable air and bodily protection in a contaminated environment
US20090055987A1 (en) * 2007-09-05 2009-03-05 Illinois Tool Works Inc. Airflow Headgear for a Welding Helmet
US20090156953A1 (en) * 2007-05-18 2009-06-18 Breathe Technologies, Inc. Methods and devices for sensing respiration and providing ventilation therapy
US20090210989A1 (en) * 2008-02-25 2009-08-27 Illinois Tool Works Inc. Welding helmet positive air pressuring system and method
US20100071693A1 (en) * 2008-08-22 2010-03-25 Breathe Technologies Methods and devices for providing mechanical ventilation with an open airway interface
US20100294270A1 (en) * 2007-11-12 2010-11-25 Curran Desmond T Respirator Assembly with Air Flow Direction Control
US20110209705A1 (en) * 2003-08-11 2011-09-01 Breathe Technologies, Inc. Tracheal catheter and prosthesis and method of respiratory support of a patient
US8136527B2 (en) 2003-08-18 2012-03-20 Breathe Technologies, Inc. Method and device for non-invasive ventilation with nasal interface
US8381729B2 (en) 2003-06-18 2013-02-26 Breathe Technologies, Inc. Methods and devices for minimally invasive respiratory support
US8418694B2 (en) 2003-08-11 2013-04-16 Breathe Technologies, Inc. Systems, methods and apparatus for respiratory support of a patient
US20130160195A1 (en) * 2011-12-22 2013-06-27 James Thomas Clement Portable fan and battery box for clearing fog/particles in goggles or for cooling masks and helmets
US8567399B2 (en) 2007-09-26 2013-10-29 Breathe Technologies, Inc. Methods and devices for providing inspiratory and expiratory flow relief during ventilation therapy
US20130312151A1 (en) * 2012-05-23 2013-11-28 Kelvin North Cold Weather Welding Mask having Heated Forced Air Means
US8770193B2 (en) 2008-04-18 2014-07-08 Breathe Technologies, Inc. Methods and devices for sensing respiration and controlling ventilator functions
US8776793B2 (en) 2008-04-18 2014-07-15 Breathe Technologies, Inc. Methods and devices for sensing respiration and controlling ventilator functions
US8925545B2 (en) 2004-02-04 2015-01-06 Breathe Technologies, Inc. Methods and devices for treating sleep apnea
US8939152B2 (en) 2010-09-30 2015-01-27 Breathe Technologies, Inc. Methods, systems and devices for humidifying a respiratory tract
US8955518B2 (en) 2003-06-18 2015-02-17 Breathe Technologies, Inc. Methods, systems and devices for improving ventilation in a lung area
US8985099B2 (en) 2006-05-18 2015-03-24 Breathe Technologies, Inc. Tracheostoma spacer, tracheotomy method, and device for inserting a tracheostoma spacer
US9132250B2 (en) 2009-09-03 2015-09-15 Breathe Technologies, Inc. Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with an entrainment port and/or pressure feature
US9180270B2 (en) 2009-04-02 2015-11-10 Breathe Technologies, Inc. Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles within an outer tube
US9962512B2 (en) 2009-04-02 2018-05-08 Breathe Technologies, Inc. Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with a free space nozzle feature

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2314078A (en) * 1941-02-26 1943-03-16 Elizabeth Anderton Window drier
GB732248A (en) * 1952-09-25 1955-06-22 Friedrich Lonne Improvements in protective devices for workers in dusty atmospheres
US2882894A (en) * 1956-02-13 1959-04-21 Floyd J Fahey Hood
US3413972A (en) * 1965-09-27 1968-12-03 Carl L. Depping Airflow helmet
US3467965A (en) * 1967-05-29 1969-09-23 Chales H Bryant Welding hood ventilator
US3496703A (en) * 1967-10-09 1970-02-24 Rite Hardware Mfg Co Backpack air-conditioning apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2314078A (en) * 1941-02-26 1943-03-16 Elizabeth Anderton Window drier
GB732248A (en) * 1952-09-25 1955-06-22 Friedrich Lonne Improvements in protective devices for workers in dusty atmospheres
US2882894A (en) * 1956-02-13 1959-04-21 Floyd J Fahey Hood
US3413972A (en) * 1965-09-27 1968-12-03 Carl L. Depping Airflow helmet
US3467965A (en) * 1967-05-29 1969-09-23 Chales H Bryant Welding hood ventilator
US3496703A (en) * 1967-10-09 1970-02-24 Rite Hardware Mfg Co Backpack air-conditioning apparatus

Cited By (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3825953A (en) * 1973-06-20 1974-07-30 R Hunter Anti-fogging device for eye shields
US4011865A (en) * 1975-09-26 1977-03-15 Mitsu Morishita Dust-proof protection mask of face covering type
US4195363A (en) * 1977-12-30 1980-04-01 Jenson Bernard T Perimeter draft welding hood
US4227520A (en) * 1978-02-10 1980-10-14 Canadian Patents & Development Ltd. Safety helmet for miners
FR2416694A1 (en) * 1978-02-10 1979-09-07 Canadian Patents Dev Safety Helmet minor
US4207882A (en) * 1978-03-16 1980-06-17 Lemere Cordell T Filter apparatus for welding mask
US4233972A (en) * 1978-05-08 1980-11-18 Wolfgang Hauff Portable air filtering and breathing assist device
EP0024133A1 (en) * 1979-07-28 1981-02-25 Marwin Foundry Units Limited Air supply units
US4320755A (en) * 1980-07-18 1982-03-23 Marwin Foundry Units Limited Air supply units
EP0087909A2 (en) * 1982-02-26 1983-09-07 Avon Industrial Polymers Limited Respirator air guide
EP0087909A3 (en) * 1982-02-26 1984-03-21 Avon Industrial Polymers Limited Respirator air guide
US4478216A (en) * 1982-04-06 1984-10-23 H.G.D. Enterprises Ltd. Portable air filtration device
EP0108560A1 (en) * 1982-11-01 1984-05-16 Racal Safety Limited Powered air supply units for respirators
US4549542A (en) * 1983-07-25 1985-10-29 Chien Chao Huei Multiple-effect respirator
FR2556974A1 (en) * 1983-12-27 1985-06-28 Commissariat Energie Atomique ergonomic Helm
EP0147313A2 (en) * 1983-12-27 1985-07-03 Commissariat A L'energie Atomique Ergonomic helmet
US4571741A (en) * 1983-12-27 1986-02-25 Commissariat A L'energie Atomique Ergonomic helmet means
EP0147313A3 (en) * 1983-12-27 1987-02-25 Commissariat A L'energie Atomique Ergonomic helmet
US4815458A (en) * 1986-07-28 1989-03-28 Peter Sing Protective breathing apparatus
US4868929A (en) * 1988-05-09 1989-09-26 Curcio Philip L Electrically heated ski goggles
US4890335A (en) * 1988-07-27 1990-01-02 Crowson Arnold E Ventilated welding shield
WO1993018726A1 (en) * 1992-03-23 1993-09-30 Arto Armas Helin Safety mask
US5555879A (en) * 1992-03-23 1996-09-17 Helin; Arto A. Safety mask
US5353605A (en) * 1992-10-28 1994-10-11 Coolight Research & Development Ltd. Personal air cooling device
US5584286A (en) * 1993-01-13 1996-12-17 Kippax; John E. Integrated breathing system
US5655374A (en) * 1996-02-21 1997-08-12 Surgical Specialty Products, Inc. Surgical suit
US6382208B2 (en) 1998-11-02 2002-05-07 Board Of Regents University Of Nebraska System for controlling the internal temperature of a respirator
US6615828B1 (en) * 1999-03-19 2003-09-09 3M Innovative Properties Company Flow indicator device for respirators
WO2002030227A1 (en) * 2000-10-11 2002-04-18 The Secretary Of State For Defence Eye protection devices
US20040031089A1 (en) * 2000-10-11 2004-02-19 Holmes Richard James Eye protection device
US6836906B2 (en) 2000-10-11 2005-01-04 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Eye protection device
US7380551B2 (en) 2003-03-21 2008-06-03 Tvi Corporation Breathing apparatus
US20040182395A1 (en) * 2003-03-21 2004-09-23 Brookman Michael J. Powered air purifying respirator system and breathing apparatus
US20050022817A1 (en) * 2003-03-21 2005-02-03 Tvi Corporation Breathing apparatus
US20040182394A1 (en) * 2003-03-21 2004-09-23 Alvey Jeffrey Arthur Powered air purifying respirator system and self contained breathing apparatus
US7543584B2 (en) 2003-03-21 2009-06-09 Interspiro, Inc. Powered air purifying respirator system and breathing apparatus
US20060048777A1 (en) * 2003-03-21 2006-03-09 Interspiro, Inc. Apparatus and method for providing breathable air and bodily protection in a contaminated environment
US20060191533A1 (en) * 2003-03-21 2006-08-31 Interspiro, Inc. Powered air purifying respirator system and breathing apparatus
US8955518B2 (en) 2003-06-18 2015-02-17 Breathe Technologies, Inc. Methods, systems and devices for improving ventilation in a lung area
US8381729B2 (en) 2003-06-18 2013-02-26 Breathe Technologies, Inc. Methods and devices for minimally invasive respiratory support
US20110209705A1 (en) * 2003-08-11 2011-09-01 Breathe Technologies, Inc. Tracheal catheter and prosthesis and method of respiratory support of a patient
US8418694B2 (en) 2003-08-11 2013-04-16 Breathe Technologies, Inc. Systems, methods and apparatus for respiratory support of a patient
US8136527B2 (en) 2003-08-18 2012-03-20 Breathe Technologies, Inc. Method and device for non-invasive ventilation with nasal interface
US8573219B2 (en) 2003-08-18 2013-11-05 Breathe Technologies, Inc. Method and device for non-invasive ventilation with nasal interface
US6973676B1 (en) * 2003-09-02 2005-12-13 Elwood Jesse Bill Simpson Protective helmet with integral air supply
US20050114986A1 (en) * 2003-12-01 2005-06-02 Hobart James M. Paint particle deflector
US8925545B2 (en) 2004-02-04 2015-01-06 Breathe Technologies, Inc. Methods and devices for treating sleep apnea
US8985099B2 (en) 2006-05-18 2015-03-24 Breathe Technologies, Inc. Tracheostoma spacer, tracheotomy method, and device for inserting a tracheostoma spacer
US20090156953A1 (en) * 2007-05-18 2009-06-18 Breathe Technologies, Inc. Methods and devices for sensing respiration and providing ventilation therapy
US20090055987A1 (en) * 2007-09-05 2009-03-05 Illinois Tool Works Inc. Airflow Headgear for a Welding Helmet
US8567399B2 (en) 2007-09-26 2013-10-29 Breathe Technologies, Inc. Methods and devices for providing inspiratory and expiratory flow relief during ventilation therapy
US20100294270A1 (en) * 2007-11-12 2010-11-25 Curran Desmond T Respirator Assembly with Air Flow Direction Control
US20090210989A1 (en) * 2008-02-25 2009-08-27 Illinois Tool Works Inc. Welding helmet positive air pressuring system and method
US9038199B2 (en) * 2008-02-25 2015-05-26 Illinois Tool Works Inc. Welding helmet positive air pressuring system and method
US8776793B2 (en) 2008-04-18 2014-07-15 Breathe Technologies, Inc. Methods and devices for sensing respiration and controlling ventilator functions
US8770193B2 (en) 2008-04-18 2014-07-08 Breathe Technologies, Inc. Methods and devices for sensing respiration and controlling ventilator functions
US8677999B2 (en) 2008-08-22 2014-03-25 Breathe Technologies, Inc. Methods and devices for providing mechanical ventilation with an open airway interface
US20100071693A1 (en) * 2008-08-22 2010-03-25 Breathe Technologies Methods and devices for providing mechanical ventilation with an open airway interface
US9962512B2 (en) 2009-04-02 2018-05-08 Breathe Technologies, Inc. Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with a free space nozzle feature
US9675774B2 (en) 2009-04-02 2017-06-13 Breathe Technologies, Inc. Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles in free space
US9227034B2 (en) 2009-04-02 2016-01-05 Beathe Technologies, Inc. Methods, systems and devices for non-invasive open ventilation for treating airway obstructions
US9180270B2 (en) 2009-04-02 2015-11-10 Breathe Technologies, Inc. Methods, systems and devices for non-invasive open ventilation with gas delivery nozzles within an outer tube
US9132250B2 (en) 2009-09-03 2015-09-15 Breathe Technologies, Inc. Methods, systems and devices for non-invasive ventilation including a non-sealing ventilation interface with an entrainment port and/or pressure feature
US8939152B2 (en) 2010-09-30 2015-01-27 Breathe Technologies, Inc. Methods, systems and devices for humidifying a respiratory tract
US9358358B2 (en) 2010-09-30 2016-06-07 Breathe Technologies, Inc. Methods, systems and devices for humidifying a respiratory tract
US20130160195A1 (en) * 2011-12-22 2013-06-27 James Thomas Clement Portable fan and battery box for clearing fog/particles in goggles or for cooling masks and helmets
US9655784B2 (en) * 2012-05-23 2017-05-23 Kelvin North Cold weather welding mask having heated forced air means
US20130312151A1 (en) * 2012-05-23 2013-11-28 Kelvin North Cold Weather Welding Mask having Heated Forced Air Means

Similar Documents

Publication Publication Date Title
US3413972A (en) Airflow helmet
US3468299A (en) Air-conditioned garment
US4164218A (en) Personal escape breathing apparatus
US3902486A (en) Portable respiratory apparatus
US5655374A (en) Surgical suit
US4951662A (en) Air circulating surgical mask unit
US5526805A (en) In-line silencer for clean room breathing apparatus
US6050551A (en) Portable apparatus for distributing and selectively sealing a vaporized or small particle substance
US5428688A (en) Voice transmission system with remote microphone
US5372130A (en) Face mask assembly and method having a fan and replaceable filter
US4896042A (en) Dual mode germicidal apparatus
US6494205B1 (en) Nasal insert filtering device
US6170282B1 (en) Portable air conditioner
US3881478A (en) Hard hat air curtain
US4238857A (en) Self-contained air conditioning unit for persons
US4752974A (en) Air-feed type dust protective helmet
US4498202A (en) Helmet equipped with ventilator
US5690099A (en) Method and apparatus for revitalizing exhaled air
EP0164946A2 (en) Improvements in and relating to respirators
US5394870A (en) Respirator blower unit housing with pommel-like strap support member comprising lower exterior support surface
US5896579A (en) Welding helmet with air circulating system
US5561862A (en) Rigid helmet having air blowing system
US20070240716A1 (en) Personal air filtering and isolation device
US2332662A (en) Gas mask
US3266490A (en) Pocket respirator