US20150265860A1 - Safety equipment - Google Patents
Safety equipment Download PDFInfo
- Publication number
- US20150265860A1 US20150265860A1 US14/439,611 US201314439611A US2015265860A1 US 20150265860 A1 US20150265860 A1 US 20150265860A1 US 201314439611 A US201314439611 A US 201314439611A US 2015265860 A1 US2015265860 A1 US 2015265860A1
- Authority
- US
- United States
- Prior art keywords
- load
- safety
- detection sensor
- safety system
- processing means
- 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.)
- Abandoned
Links
- 238000001514 detection method Methods 0.000 claims abstract description 47
- 230000004913 activation Effects 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 230000000007 visual effect Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000034994 death Effects 0.000 description 3
- 231100000517 death Toxicity 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012806 monitoring device Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 208000006670 Multiple fractures Diseases 0.000 description 1
- 230000009118 appropriate response Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 238000012029 structural testing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
- A62B35/0006—Harnesses; Accessories therefor
- A62B35/0025—Details and accessories
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
- A62B35/0043—Lifelines, lanyards, and anchors therefore
- A62B35/0075—Details of ropes or similar equipment, e.g. between the secured person and the lifeline or anchor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B45/00—Hooks; Eyes
- F16B45/02—Hooks with pivoting or elastically bending closing member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B45/00—Hooks; Eyes
- F16B45/02—Hooks with pivoting or elastically bending closing member
- F16B45/023—Hooks with pivoting or elastically bending closing member the closing member pivoting about an axis perpendicular to the plane of the hook
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B45/00—Hooks; Eyes
- F16B45/02—Hooks with pivoting or elastically bending closing member
- F16B45/027—Hooks with pivoting or elastically bending closing member and having position-locking means for the closing member
- F16B45/028—Hooks with pivoting or elastically bending closing member and having position-locking means for the closing member the position-locking means being pivotally connected
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Mechanical Engineering (AREA)
- Emergency Lowering Means (AREA)
- Emergency Alarm Devices (AREA)
- Alarm Systems (AREA)
Abstract
A safety system includes a load detection sensor retrofitable on a safety hook, a transmitter arranged to convey a load status signal, processing means for analyzing the load status signal, a receiver for receiving the load status signal and being operably connected to the processing means, warning means arranged to generate notifications, and a power source for providing energy to the transmitter, the receiver, and the processing means. The load detection sensor is arranged to generate a load status signal which is sent by the transmitter to the receiver and then analyzed by the processing means so that when the load status signal indicates that a load is undetected or that the safety hook is connected, the warning means are either inactive or generate a first notification but when the pressure status signal indicates that a load is detected or that the safety hook is disconnected, the warning means generate a second notification.
Description
- The present invention relates to retrofitable safety equipment for use with safety systems. In particular, but not exclusively, the present invention relates to safety equipment for use with construction safety systems.
- According to the UK's Health and Safety Executive (HSE) construction falls from height are the biggest cause of fatal injury in the nation's workplaces; further, they represent roughly 50% of work-related deaths in the construction sector. In addition, over 4,000 major injuries, such as broken bones or fractured skulls, are reported to HSE each year by the construction industry and around 50% of these serious injuries relate are caused by falls from height. Although safety equipment such as safety belts, hooks and security lines have been in use in the industry for years, in practice, a high proportion of workers carry out their work while the safety equipment is disconnected. Both HSE and employers in the industry have taken steps to improve observance of safety regulations and to prevent deaths and injuries from falls; for example HSE has implemented heavy fines which are levied on contractors if personnel are found to be using safety equipment incorrectly on a site. However, on large building projects it is very difficult to monitor workers continuously to ensure that they always adhere to safety rules and practice.
- However, the construction industry continues to cause more deaths than any other industrial sector. Consequently, safety systems which allow usage of safety equipment to be monitored have been proposed. For example, EP2314354 describes a safety system and a safety belt comprising a connecting member, a rope, an attaching portion, a hook, and a load detection portion arranged to detect whether or not a load is applied to the connecting member and to generate a load detection signal which is sent to a control device including a receiver unit arranged to receive the load detection signal and a notification unit arranged to provide a warning or alarm. In this system, the control unit determines the status of a user or the status of the safety belt based on the load detection signal and the notification unit provides a visible or audible alarm if a load is detected or if the safety belt is disconnected.
- The disadvantage of the system proposed by EP2314354 and other known systems is that the components described therein are not standard and are therefore very expensive to manufacture. Moreover, the components have not been subject to the rigorous functional and structural testing necessary for approval in jurisdictions such as the European Union and the US; as a result, it is unknown whether the hooks and lines described in EP2314354 are able to withstand the stresses borne by standard hooks or karabiners and standard lines. Further, safety equipment for use in the European construction industry must comply with IP65, that is, equipment must be totally protected against dust ingress and must also be protected against high pressure water jets from any direction.
- The present invention therefore aims to provide a safety system which complies with security and ingress protection standards, composition and structural standards and which is cheaper to manufacture than prior art systems.
- According to the present invention there is provided a safety system comprising: a load detection sensor retrofitable on a safety hook; a transmitter arranged to convey a load status signal; processing means for analysing the load status signal; a receiver for receiving the load status signal and being operably connected to the processing means; warning means arranged to generate notifications; and a power source for providing energy to the transmitter, the receiver, and the processing means; wherein the load detection sensor is arranged to generate a load status signal which is sent by the transmitter to the receiver and then analysed by the processing means so that when the load status signal indicates that a load is undetected or that the safety hook is connected, the warning means are either inactive or generate a first notification but when the pressure status signal indicates that a load is detected or that the safety hook is disconnected, the warning means generate a second notification.
- Advantageously, the load detection sensor is a pressure sensor. Preferably, the pressure sensor is a piezoelectric sensor or comprises quantum tunnelling composites or comprises a cable operably connected to a first self-energising switch arranged to be activated when the cable is in a pulled condition and second self-energising switch arranged to be activated when the cable is in a relaxed condition.
- In a preferred embodiment, a second load detection sensor is retrofitable on a second safety hook.
- In another preferred embodiment, the warning means are adapted to generate a visual notification, an audible notification or a visual and an audible notification. Preferably, the warning means is at least one LED light.
- Advantageously, the safety system comprises a timer arranged to generate an alarm after a predetermined time threshold has been exceeded or a counter arranged to generate an alarm after a predetermined time threshold has been exceeded.
- In a preferred embodiment, the transmitter includes at lest one self energising switch.
- Preferably, the processing means, the receiver and the warning means are included in a beacon. More preferably, the safety system further comprises activation means.
- According to a second aspect of the present invention there is provided, a safety hook comprising a load detection sensor and a plastics layer wherein the load detection sensor is retrofitted on the safety hook by shrink-wrapping the plastics layer with heat.
- Preferred embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings in which:
-
FIG. 1 shows a safety hook having a load detection sensor in accordance with a first embodiment of the present invention; -
FIG. 2 shows a safety hook having a load detection sensor in accordance with a second embodiment of the present invention; -
FIG. 3 a shows a safety hook having a load detection sensor in accordance with a third embodiment of the present invention; -
FIG. 3 b shows the safety hook ofFIG. 3 a in use; -
FIG. 4 shows processing means in accordance with an embodiment of the present invention; -
FIG. 5 shows processing means in accordance with another embodiment of the present invention; and -
FIG. 6 is a diagrammatic representation of a computerised security system for displaying at a monitoring station the status of four workers each having a safety hook having a load detection sensor and processing means in accordance with the present invention; -
FIG. 7 is a block diagram illustration of example logic steps followed by processing means according to the present invention, and -
FIG. 8 is a block diagram illustration of example logic steps followed by a pair of load detection sensor connected to the processing means ofFIGS. 4 , 5, 6 and 7 above, and - Referring now to
FIG. 1 there is shown asafety hook 1 according to a first embodiment of the present invention. Thesafety hook 1 has an upper section which has been retrofitted with aload detection sensor 5 formed by a layer of shrinkable polymer plastics material (such as polyolefin) incorporating, coated or impregnated with quantum tunnelling composite materials, such as QTC®. This type of composite material is a mixture of conductive filler particles (such as highly-conductive metals) and elastomeric binders (for example silicone rubber) which use quantum tunnelling for pressure switching and sensing. Quantum tunnelling composite materials have the ability to change from an electrical insulator to a conductor when placed under pressure so that when pressure is absent the atoms of the conductive metals are too distant to conduct electricity but when pressure is applied, the conductive atoms congregate and electrons conduct electricity through the composite. Accordingly, these materials can be used to detect even very small changes due to compression, tension or other stresses. In the present invention, theload detection sensor 5 is able to detect a pressure change caused by a load being applied on the hook. - The
load detection sensor 5 described above can be shrunk onto astandard hook 1 such as a karabiner, ascender, descender, fall arrester, crane hook and scaffold hook by simply applying heat with a heat gun, or any method suitable to shrink-wrap the upper section of the hook. Atransmitter 3 is connected to or included in the load detection sensor. In use, theload detection sensor 5 perceives the pressure change generated by attaching thehook 1 to a rope or a lanyard and generates a first load status signal which is sent by thetransmitter 3 to a receiver operably connected to processing means. The processing means analyses the load status signal and allows warning means to generate a notification or signal, for example a visible green light, to indicate that the hook is fastened. In the event the pressure changes again because a heavier load, such as one produced by a fall from a scaffold, is applied, theload detection sensor 5 generates a second load status signal. When the second load status signal is analysed by the processing means, a second notification, for example an audible alarm is generated by the warning means to enable the user and those around him to identify that a heavy load is being applied on the hook. - Referring now to
FIG. 2 there is shown asafety hook 1 comprising aload detection sensor 7 according to a second embodiment of the present invention. In this embodiment, the load detection sensor is a piezoelectric sensor arranged to generate an electrical signal or electrical charge in response to pressure change. Theload detection sensor 7 is mounted on a rigid plate which has been adhered to astandard safety hook 1. Atransmitter 3 is also mounted on the plate. In use, the safety system of this embodiment works in the same way as that described in relation to the safety system of the first embodiment. - Referring now to
FIGS. 3 a and 3 b, there is shown aload detection sensor 9 according to a third embodiment of the present invention. In this particular embodiment, theload detection sensor 9 comprises a first and second self-energising switches mounted on a rigid plate which rigid plate is adhered to astandard safety hook 1, each self-energising switch being operably connected to asteel cable 9 a. Atransmitter 3 arranged to relay a load status signal is also mounted on the rigid plate. In use, the first self-energising switch is arranged to be activated when thesteel cable 9 a is pulled so that when thesafety hook 1 is connected to aline 10, the first switch is activated and generates a load detection signal which is relayed by thetransmitter 3 to processing means. Whereas, the second self-energising switch is arranged to be activated when thesteel cable 9 a is in a relaxed condition so that when thesteel cable 9 a is relaxed, the second self-energising switch is activated and a second load detection signal is relayed by the transmitter to the processing means. -
FIG. 4 shows a processing unit orbeacon 4 including processing means 2, thebeacon 4 having an activation switch or other activation means 14, and anopening 13 for receiving ametallic ring 17 which allows the beacon to be secured to a standard harness. Warning means 12, in this instance a super bright LED, is secured to an end of thebeacon 4. Inaddition zip ties 16 are provided for securing thebeacon 4 to items, such as clothing, which do not have asuitable opening 13. As described above in relation toFIG. 1 , processing means 2 is operably connected to a receiver which receives a load status signal from atransmitter 3. Processing means are arranged to analyse the load detection signal from aload detection sensor safety hook 1 is connected to a safety line and/or whether a load greater than a predetermined threshold is applied to theload detection sensor beacon 4 according to this embodiment of the present invention can be used with any of theload detection sensors FIGS. 1 , 2, 3 a and 3 b. Thebeacon 4 is powered with standard batteries, such as AA batteries. In this particular embodiment, thebeacon 4 comprises anactivation switch 14 and a counter arranged to allow a user to activate thebeacon 4 from a non-operational state to an operational state by pressing theactivation switch 14. Once thebeacon 4 has become operational, the counter measures a predetermined time interval, for example 3 months, and sends a time lapse signal to the processing means 2 once the predetermined time interval has elapsed. In this embodiment, the processing means 2 are further arranged to analyse the time lapse signal and to produce a time output signal which time output signal causes the warning means to generate a time elapsed alarm, either visible, audible or both, to notify a user that the life-span of batteries has elapsed. The processing means monitors the batteries and also produces a time output signal if it detects that there is insufficient power left, i.e. that the batteries are running low so that the warning means generates a time elapsed alarm, either visible, audible or both, to alert the user that the batteries must be replaced. A three month time interval is particularly useful because safety equipment is generally inspected every three months and, in general, batteries would be expected to have a useful life of around 3 months. The counter can be adapted to reset once the batteries have been replaced and theactivation switch 14 has been pressed. - Referring now to
FIG. 5 , there is shown a second type of processing unit. In this embodiment, the processing means 2 are housed in a processing unit comprising a superbright LED 12 and ametallic back plate 20 for securing the processing unit to astandard harness 6. As above, the processing unit is powered by batteries and may include a counter. Display means 18 are secured to the processing unit to enable an equipment inspector to mark the processing unit with an inspection message including for example, date, time, and initials or name of the last check. - Referring now to
FIG. 6 there is shown a scheme of a further embodiment of the present invention in which the processing means 2 are arranged to communicate wirelessly with amonitoring device 30, such as an on-site computer, to allow asupervisor 31, for example a site manager, to remotely monitor use of the safety equipment. As illustrated, four site workers P1 to P4 are shown, each wearing twosafety hooks 1 and/or processing means 2 each tagged with an ID so that thesupervisor 31 remotely monitoring use of the safety equipment can determine whether any specific users on the site are appropriately secured to a safety line. As shown, workers P1 and P3 are correctly hooked up with their second hook secured to their harness and the appropriate signal is sent remotely to themonitoring device 30 where the status of these two workers is indicated as “Safe”. Worker P2 is not hooked up and a warning signal is sent remotely to the monitoring device 30.The processing means 2 preferably includes a radio link to enable the supervisor to speak directly to the worker to check where the worker is and whether he/she should be hooked up or not, even though the employee may not be visible to the supervisor. Worker P4 is illustrated as having fallen which generates an emergency signal which is sent directly to the supervisor who can immediately identify the worker and implement SOS procedures. Thus, if there is an accident on-site, the supervisor is immediately and remotely alerted to facilitate a prompt and appropriate response. In this embodiment, the processing means need not be housed in a processing unit and could be housed in thesafety hook 1, for example. Further, in this embodiment, the warning means may be remotely connected to the processing means. The main purpose of the second hook is to enable workers to move position and to clip on the second hook in a new position, before removing the first hook. In this way the worker is always clipped in position. -
FIG. 7 shows block diagram illustration the logic steps followed by processing means 2 according to the present invention. As seen inFIG. 7 , the system is provided with a day counter. In a first step, the system establishes whether the counter has measured over 90 day (i.e. 3 months) of service. If the answer is yes, the processing unit causes the system to generate, for example, a flashing light and a sound to enable a user to remove the batteries from the processing unit to reset the system and, as a result, the counter is reset to zero. If the answer to the first step is no, the processing unit determines whether the battery level is under 5%. If the battery level is below 5%, the processing means cause the system to generate a constant light and a sound to alert a user that the battery is low. If the battery level is above 5%, the processing means proceeds to the next step in which the processing means determines if the system is being used. If the system in in sleep mode, the processing unit follows repeats the step in a loop until it detects motion. On the other hand, if motion is detected, the processing means proceeds to the following step in which it checks whether a signal from the hook or hooks has been received. If no signals are detected, the processing means loops back to the first step in a loop and follows each subsequent step. If a positive signal from the hook or hooks is detected, the processing unit proceeds to determine whether the signal relates to a fall status. In the event the signal is related to a fall, the processing means causes the system to generate flashing lights and a loud audible alarm to alert on-site personnel that a user is in danger. To ensure safety of the users, the system could be set up to prevent a reset when a fall signal has been detected. mode. If the signal does not relate to a fall, the processing unit proceeds to determine whether the signal is constant or intermittent. If the signal has an interval of over 5 seconds, the processing means assumes that the hook or hooks are faulty or that the battery level is under 5% and causes the system to generate a constant light and a sound. If the interval between two instances of detection of a signal is below 5 seconds, the processing means causes the system to produce a flashing light and a sound to alert on-site personnel that the user might be in danger. - Referring now to
FIG. 8 , there is shown block diagram illustration the logic steps followed by a pair ofload detection sensors FIGS. 4 , 5, 6 and 7 above. Each sensor follows the same logic steps simultaneously. In a first step, the processing unit determines whether the battery level is over 5%. If the battery level is under 5%, the processing unit does not receive a signal from the hook. If the battery level is over 5%, the processing means proceeds to determine whether the hook sensor detects a load over 0 N. If no load is detected, the processing means causes the system to generate a signal to alert the system that the user is not hooked. If a load is detected, the processing means determine whether the load is under 5 N. If the load detected by the hook sensor is below 5 N, the processing means causes the system to generate a signal to indicate that the user is hooked. If the load detected is not under 5 N, the processing means determines whether the load exceeds 5 N. If the load detected does not exceed 5 N, the logic loops back to the first step. However, if the load detected by the hook sensor exceeds 5 N, the processing means causes the system to generate a FALL signal to alert on-site personnel that the user has suffered a fall. As the system shown in this figure comprises a pair of hooks, the processing means may be set up to generate an visual or audible alarm when either hook sensor detects a fall (i.e. a load which exceeds 5 N). In addition, the processing means may be programmed to generate an alarm when it detects that neither hook is connected to a line. - A
transmitter 3 suitable for use with any of the embodiments of the present invention comprises a 433 MHz PCB antenna. - One of the main advantages of the present system, and in particular of the embodiment described in relation to
FIG. 6 , is that a supervisor can monitor whether any given user is employing safety equipment appropriately at any given time so that on-site personnel are encouraged to adhere to safety regulations and to use safety equipment. Moreover, it would allow evaluating personnel safety equipment history so that individual users found to systematically disregard safety regulations can be disciplined. Further, it would also allow a supervisor to monitor safety equipment use remotely so that regardless of the size of the site or project, a supervisor would always know if personnel are connected to a line and if an accident has occurred. - As mentioned one of the greatest advantages of the present invention is that it can be used with standard equipment such as harnesses, lanyards, hooks, ties and rope without altering the structural integrity of the standard equipment. Further, retrofitting the existing standard equipment is straightforward; as a result, there is not need to invest heavily in new equipment, so implementation costs are nominal. Although the embodiments above have been described in relation to a single safety hook, it should be clear to the skilled person that the safety system of the present invention could also be used with a two or more hooks so that the warning means generate a signal to indicate that all the two or more hooks are disconnected, connected or that a load greater than a predetermined value is being applied to one of the two or more hooks.
- Moreover, it should also be apparent that the invention can be used with different types of hooks such as karabiners, ascenders, descenders, fall arresters, crane hooks and scaffold hooks.
- In addition, it should be clear that the notifications generated by the warning means may be lights of different colours, lights flashing in different patterns, audible alarms, a combination of coloured/flashing lights and an audible alarm or any other suitable means to attract attention.
- Further, it should also be apparent that although processing and warning means according to the invention have been described as being separate from the load detection sensor, it would possible to integrate both of these into a safety hook comprising a load detection sensor according to the present invention, for example by mounting them in the rigid plate described in relation to the second and third embodiments or by adhering them to the layer of shrinkable polymer plastics material described in relation to the first embodiment once heat has been applied to it.
- Moreover, it should be clear that the beacon and control unit could be powered with any suitable power source other than batteries, such as: a kinetic power generator/microgenerator or a solar power cell.
- Although the safety system of the present invention has been described in relation to its use in the construction industry, it should be clear to the skilled person that the safety system could also be used for scaffolding, climbing, abseiling, sailing, rope rescue, industrial rope work, window cleaning and any other activity in which safety belts and or harnesses are necessary.
Claims (15)
1. A safety system, comprising:
a load detection sensor retrofitable on a safety hook;
a transmitter arranged to convey a load status signal;
processing means for analysing the load status signal;
a receiver for receiving the load status signal and being operably connected to the processing means;
warning means arranged to generate notifications; and
a power source for providing energy to the transmitter, the receiver, and the processing means;
wherein the load detection sensor is arranged to generate a load status signal which is sent by the transmitter to the receiver and then analyzed by the processing means so that when the load status signal indicates that a load is undetected or that the safety hook is connected, the warning means are either inactive or generate a first notification but when the pressure status signal indicates that a load is detected or that the safety hook is disconnected, the warning means generate a second notification.
2. A safety system according to claim 1 , wherein the load detection sensor is a pressure sensor.
3. A safety system according to claim 2 , wherein the pressure sensor is a piezoelectric sensor.
4. A safety system according to claim 2 , wherein the pressure sensor comprises quantum tunnelling composites.
5. A safety system according to claim 1 , wherein the load detection sensor comprises a cable operably connected to a first self-energizing switch arranged to be activated when the cable is in a pulled condition and second self-energizing switch arranged to be activated when the cable is in a relaxed condition.
6. A safety system according to claim 1 , further comprising a second load detection sensor retrofitable on a second safety hook.
7. A safety system according to claim 1 , wherein the warning means are adapted to generate a visual notification, an audible notification or a visual and an audible notification.
8. A safety system according to claim 1 , further comprising a timer arranged to generate an alarm after a predetermined time threshold has been exceeded.
9. A safety system according to claim 1 , further comprising a counter arranged to generate an alarm after a predetermined time threshold has been exceeded.
10. A safety system according to claim 1 , wherein the warning means is at least one LED light.
11. A safety system according to claim 1 , wherein the transmitter includes at least one self-energizing switch.
12. A safety system according to claim 1 , wherein the processing means, the receiver and the warning means are included in a beacon.
13. A safety system according to claim 11 , further comprising activation means.
14. A safety hook comprising a load detection sensor and a plastics layer wherein the load detection sensor is retrofitted on the safety hook by shrink-wrapping the plastics layer with heat so as to secure the load detection sensor on the safety hook.
15. A safety system according to claim 2 , wherein the load detection sensor comprises a cable operably connected to a first self-energizing switch arranged to be activated when the cable is in a pulled condition and second self-energizing switch arranged to be activated when the cable is in a relaxed condition.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1219688.7A GB2510096B (en) | 2012-11-01 | 2012-11-01 | Safety equipment |
GB1219688.7 | 2012-11-01 | ||
PCT/GB2013/000462 WO2014068266A2 (en) | 2012-11-01 | 2013-10-30 | Safety equipment |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2013/000462 A-371-Of-International WO2014068266A2 (en) | 2012-11-01 | 2013-10-30 | Safety equipment |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/417,067 Continuation US11969612B2 (en) | 2012-11-01 | 2019-05-20 | Safety equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
US20150265860A1 true US20150265860A1 (en) | 2015-09-24 |
Family
ID=47359020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/439,611 Abandoned US20150265860A1 (en) | 2012-11-01 | 2013-10-30 | Safety equipment |
Country Status (14)
Country | Link |
---|---|
US (1) | US20150265860A1 (en) |
EP (2) | EP2914350B1 (en) |
JP (1) | JP6369838B2 (en) |
KR (1) | KR102186674B1 (en) |
CN (2) | CN109589516A (en) |
AU (1) | AU2013340560B2 (en) |
CA (1) | CA2890005C (en) |
DK (2) | DK2914350T3 (en) |
ES (2) | ES2665333T3 (en) |
GB (1) | GB2510096B (en) |
HK (1) | HK1217118A1 (en) |
NO (1) | NO3138610T3 (en) |
NZ (1) | NZ708471A (en) |
WO (1) | WO2014068266A2 (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150123767A1 (en) * | 2013-11-01 | 2015-05-07 | James P. Tolle | Wearable, non-visible identification device for friendly force identification and intruder detection |
US9480866B2 (en) * | 2014-10-21 | 2016-11-01 | The Boeing Company | Line connector having a link detection system and method of making same |
WO2017180121A1 (en) * | 2016-04-14 | 2017-10-19 | Honeywell International Inc. | Weight bearing fall protection connector having a wireless fall indicator |
US20180085696A1 (en) * | 2016-09-29 | 2018-03-29 | Rosemount Inc. | Gas sensor module with field replaceable, ingress protected, sensor filter |
US20190022439A1 (en) * | 2017-07-18 | 2019-01-24 | Smart Harness Systems, LLC | Safety System with Digital Tracking and Reporting and Method of Use |
US20190092613A1 (en) * | 2013-07-23 | 2019-03-28 | O.E.M. Controls, Inc. | Warning and message delivery and logging system utilizable in a fall arresting and prevention device and method of same |
US20190269949A1 (en) * | 2015-04-29 | 2019-09-05 | Skanska Uk Plc | Safety equipment |
US20200016439A1 (en) * | 2017-03-31 | 2020-01-16 | 3M Innovative Properties Company | Fall protection equipment connection status and control |
US20210016116A1 (en) * | 2018-09-25 | 2021-01-21 | Jimi Ip, Llc | Safety Check Apparatus for Challenge Course |
US20210106855A1 (en) * | 2019-10-10 | 2021-04-15 | Saudi Arabian Oil Company | Systems, Methods, and Apparatuses for Ensuring Worker Safety |
CN113463936A (en) * | 2021-05-28 | 2021-10-01 | 锡林郭勒热电有限责任公司 | Automatic following anti-falling protection device and safety monitoring system |
US20220146261A1 (en) * | 2020-05-19 | 2022-05-12 | Us Safety Technologies Llc | Safety Harness Motion Detector Systems and Methods for Use |
US11393313B2 (en) * | 2017-10-27 | 2022-07-19 | Honeywell International Inc. | Smart height safety system |
US20220254240A1 (en) * | 2020-07-16 | 2022-08-11 | Joseph Clinton Meyers | Apparatus for anchoring a fall protection system and transmitting a fall alert |
CN115212483A (en) * | 2022-07-20 | 2022-10-21 | 广东电网有限责任公司 | Safety belt state monitoring system and method for aerial work |
US11623108B2 (en) | 2020-05-19 | 2023-04-11 | Us Safety Technologies Llc | Safety harness motion detector systems and methods for use |
US11969612B2 (en) * | 2012-11-01 | 2024-04-30 | Skanska Uk Plc | Safety equipment |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2530121B (en) * | 2014-08-05 | 2016-11-23 | Cord Safe Ltd | Motor safety device with an alarm element |
JP2016038665A (en) * | 2014-08-06 | 2016-03-22 | 株式会社大林組 | Work suit |
US10769925B2 (en) * | 2015-12-30 | 2020-09-08 | 3M Innovative Properties Company | Electronic fall event communication system |
KR101804040B1 (en) | 2016-03-07 | 2017-12-04 | 서규선 | Industrial Safety Hook with Double locks |
CN105725299A (en) * | 2016-04-01 | 2016-07-06 | 德清申力索具有限公司 | Safe garment |
JP6665766B2 (en) * | 2016-12-09 | 2020-03-13 | トヨタ自動車株式会社 | Walking training equipment |
CN108525153A (en) * | 2018-05-04 | 2018-09-14 | 乐清市盛邦安防有限公司 | A kind of control system that intelligence is linked up with and intelligently linked up with |
KR101964727B1 (en) * | 2018-08-22 | 2019-04-02 | 주식회사 지에스아이엘 | Safety belt for high place work and work safety management system using the same |
KR101932022B1 (en) * | 2018-11-21 | 2018-12-27 | (주)창조인 | Emergency escape apparatus for escape education |
MX2021010767A (en) | 2019-03-22 | 2021-09-28 | 3M Innovative Properties Company | Fall-protection system with monitoring system. |
MX2022000072A (en) * | 2019-07-10 | 2022-03-02 | 3M Innovative Properties Company | Fall-protection apparatus with multimodal inductive sensing. |
KR102399579B1 (en) * | 2019-08-20 | 2022-05-18 | 주식회사 티앤블루랩 | Safety Belt Unit For High Place Work |
CN110559570A (en) * | 2019-09-02 | 2019-12-13 | 成都建工第五建筑工程有限公司 | Induction device, detection system and safety hook |
CN110404272B (en) * | 2019-09-09 | 2023-09-01 | 中国计量大学 | Device for standard safety operation of sliding rope |
KR102377955B1 (en) * | 2019-12-13 | 2022-03-23 | 임홍규 | Smart safety hook |
GB2591083A (en) * | 2020-01-02 | 2021-07-21 | Cape Industrial Services Ltd | Safety harness system |
KR20210101767A (en) | 2020-02-11 | 2021-08-19 | 동서대학교 산학협력단 | Safety loop device |
CN111458129A (en) * | 2020-04-29 | 2020-07-28 | 江苏省特种设备安全监督检验研究院 | High-precision online detection system for cantilever beam of crane |
EP4319886A1 (en) * | 2021-04-09 | 2024-02-14 | Bosch Sanayi Ve Ticaret Anonim Sirketi | Monitoring device for a fall protection system for persons and fall protection system for persons |
CN114288581A (en) * | 2022-01-05 | 2022-04-08 | 郑鸿 | Safety hook, safety rope and safety implementation method |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4423796A (en) * | 1982-11-23 | 1984-01-03 | Sulowski Andrew C | Ladder climber's safety device |
US20080021017A1 (en) * | 1996-04-19 | 2008-01-24 | Wyeth | 2-Phenyl-1-[4-(2-aminoethoxy)-benzyl]-indoles as estrogenic agents |
US20090014523A1 (en) * | 2001-09-21 | 2009-01-15 | Metrologic Instruments, Inc. | Digital imaging-based system having intelligent data communication interface to a host system |
US20110090079A1 (en) * | 2009-10-20 | 2011-04-21 | Fujii Denko Co., Ltd. | Safety belt and system for checking a usage status of the safety belt |
US20120217091A1 (en) * | 2011-02-09 | 2012-08-30 | Baillargeon Paul D | Warning and message delivery and logging system utilizable in the monitoring of fall arresting and prevention devices and method of same |
US8325053B2 (en) * | 2009-03-10 | 2012-12-04 | JCJ Inc. | Personal fall protection monitoring system |
US9392826B2 (en) * | 2011-06-01 | 2016-07-19 | Fall-Safe Assist Ltd. | Fall detection and hip impact protector |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1360234A (en) * | 1971-04-16 | 1974-07-17 | Lucas Industries Ltd | Safety arrangements for road vehicles |
JPS5236976U (en) * | 1975-09-08 | 1977-03-16 | ||
JPH0411050U (en) * | 1990-05-16 | 1992-01-29 | ||
JP2602143B2 (en) * | 1992-02-20 | 1997-04-23 | 株式会社マコム | Electricity type wire tension detection type alarm sensor |
JP2834619B2 (en) * | 1992-07-24 | 1998-12-09 | 矢崎総業株式会社 | Gas leak alarm device |
JPH0694561A (en) * | 1992-09-11 | 1994-04-05 | Matsushita Electric Ind Co Ltd | Piezoelectric type pressure sensor |
FR2755236B3 (en) * | 1996-10-24 | 1998-12-24 | Henri Joachim Victor Brunet | EFFORT SENSOR WITH RADIO ALARM FOR THE PROTECTION OF PERSONS OR INDUSTRIAL DEVICES |
JP3390421B2 (en) * | 2001-02-20 | 2003-03-24 | 株式会社弥生機工 | Safety belt device for working at height |
JP2007044166A (en) * | 2005-08-08 | 2007-02-22 | Chugoku Electric Power Co Inc:The | Attachment check sensor |
US8141681B2 (en) * | 2008-04-07 | 2012-03-27 | Safeworks, Llc | Tower climbing assist device |
JP5147636B2 (en) * | 2008-10-17 | 2013-02-20 | 藤井電工株式会社 | Safety belt and safety belt wearing confirmation system |
JP5359661B2 (en) * | 2009-08-03 | 2013-12-04 | 日本電気株式会社 | Safety management system, safety management device, safety management method, and program |
US9007190B2 (en) * | 2010-03-31 | 2015-04-14 | Tk Holdings Inc. | Steering wheel sensors |
GB2486012A (en) * | 2010-12-01 | 2012-06-06 | Dessa Ltd | Alarm for fall arrest system |
JP5335054B2 (en) * | 2011-11-09 | 2013-11-06 | ホーチキ株式会社 | Alarm |
CN102512773B (en) * | 2012-02-02 | 2013-10-23 | 中国十七冶集团有限公司 | Remote monitoring device for wearing state of safety rope |
-
2012
- 2012-11-01 GB GB1219688.7A patent/GB2510096B/en active Active
-
2013
- 2013-10-30 EP EP13811589.4A patent/EP2914350B1/en active Active
- 2013-10-30 CA CA2890005A patent/CA2890005C/en active Active
- 2013-10-30 CN CN201811207926.2A patent/CN109589516A/en active Pending
- 2013-10-30 WO PCT/GB2013/000462 patent/WO2014068266A2/en active Application Filing
- 2013-10-30 DK DK13811589.4T patent/DK2914350T3/en active
- 2013-10-30 NO NO16193804A patent/NO3138610T3/no unknown
- 2013-10-30 CN CN201380057687.6A patent/CN105025987B/en active Active
- 2013-10-30 AU AU2013340560A patent/AU2013340560B2/en active Active
- 2013-10-30 NZ NZ708471A patent/NZ708471A/en unknown
- 2013-10-30 US US14/439,611 patent/US20150265860A1/en not_active Abandoned
- 2013-10-30 ES ES16193804.8T patent/ES2665333T3/en active Active
- 2013-10-30 JP JP2015540200A patent/JP6369838B2/en active Active
- 2013-10-30 KR KR1020157014371A patent/KR102186674B1/en active IP Right Grant
- 2013-10-30 ES ES13811589.4T patent/ES2620024T3/en active Active
- 2013-10-30 DK DK16193804.8T patent/DK3138610T3/en active
- 2013-10-30 EP EP16193804.8A patent/EP3138610B1/en active Active
-
2016
- 2016-05-04 HK HK16105097.3A patent/HK1217118A1/en unknown
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4423796A (en) * | 1982-11-23 | 1984-01-03 | Sulowski Andrew C | Ladder climber's safety device |
US20080021017A1 (en) * | 1996-04-19 | 2008-01-24 | Wyeth | 2-Phenyl-1-[4-(2-aminoethoxy)-benzyl]-indoles as estrogenic agents |
US20090014523A1 (en) * | 2001-09-21 | 2009-01-15 | Metrologic Instruments, Inc. | Digital imaging-based system having intelligent data communication interface to a host system |
US8325053B2 (en) * | 2009-03-10 | 2012-12-04 | JCJ Inc. | Personal fall protection monitoring system |
US20110090079A1 (en) * | 2009-10-20 | 2011-04-21 | Fujii Denko Co., Ltd. | Safety belt and system for checking a usage status of the safety belt |
US20120217091A1 (en) * | 2011-02-09 | 2012-08-30 | Baillargeon Paul D | Warning and message delivery and logging system utilizable in the monitoring of fall arresting and prevention devices and method of same |
US9392826B2 (en) * | 2011-06-01 | 2016-07-19 | Fall-Safe Assist Ltd. | Fall detection and hip impact protector |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11969612B2 (en) * | 2012-11-01 | 2024-04-30 | Skanska Uk Plc | Safety equipment |
US20190092613A1 (en) * | 2013-07-23 | 2019-03-28 | O.E.M. Controls, Inc. | Warning and message delivery and logging system utilizable in a fall arresting and prevention device and method of same |
US9519853B2 (en) * | 2013-11-01 | 2016-12-13 | James P Tolle | Wearable, non-visible identification device for friendly force identification and intruder detection |
US20150123767A1 (en) * | 2013-11-01 | 2015-05-07 | James P. Tolle | Wearable, non-visible identification device for friendly force identification and intruder detection |
US9480866B2 (en) * | 2014-10-21 | 2016-11-01 | The Boeing Company | Line connector having a link detection system and method of making same |
US20190269949A1 (en) * | 2015-04-29 | 2019-09-05 | Skanska Uk Plc | Safety equipment |
CN109310895B (en) * | 2016-04-14 | 2021-06-01 | 霍尼韦尔国际公司 | Load-bearing fall protection connector with wireless fall indicator |
CN113384829A (en) * | 2016-04-14 | 2021-09-14 | 霍尼韦尔国际公司 | Load-bearing fall protection connector with wireless fall indicator |
US11730984B2 (en) | 2016-04-14 | 2023-08-22 | Honeywell International Inc. | Weight bearing fall protection connector having a wireless fall indicator |
WO2017180121A1 (en) * | 2016-04-14 | 2017-10-19 | Honeywell International Inc. | Weight bearing fall protection connector having a wireless fall indicator |
CN113368428A (en) * | 2016-04-14 | 2021-09-10 | 霍尼韦尔国际公司 | Load-bearing fall protection connector with wireless fall indicator |
US10843016B2 (en) | 2016-04-14 | 2020-11-24 | Honeywell International Inc. | Weight bearing fall protection connector having a wireless fall indicator |
CN109310895A (en) * | 2016-04-14 | 2019-02-05 | 霍尼韦尔国际公司 | Load-bearing falling guard connector with the indicator that wirelessly falls |
US20180085696A1 (en) * | 2016-09-29 | 2018-03-29 | Rosemount Inc. | Gas sensor module with field replaceable, ingress protected, sensor filter |
US10617985B2 (en) * | 2016-09-29 | 2020-04-14 | Rosemount Inc. | Gas sensor module with field replaceable, ingress protected, sensor filter |
US20200016439A1 (en) * | 2017-03-31 | 2020-01-16 | 3M Innovative Properties Company | Fall protection equipment connection status and control |
US20190022439A1 (en) * | 2017-07-18 | 2019-01-24 | Smart Harness Systems, LLC | Safety System with Digital Tracking and Reporting and Method of Use |
US11298572B2 (en) * | 2017-07-18 | 2022-04-12 | Smart Harness Systems, LLC | Safety system with digital tracking and reporting and method of use |
US20220319293A1 (en) * | 2017-10-27 | 2022-10-06 | Honeywell International Inc. | Smart height safety system |
US11694534B2 (en) * | 2017-10-27 | 2023-07-04 | Honeywell International Inc. | Smart height safety system |
US11393313B2 (en) * | 2017-10-27 | 2022-07-19 | Honeywell International Inc. | Smart height safety system |
US20210016116A1 (en) * | 2018-09-25 | 2021-01-21 | Jimi Ip, Llc | Safety Check Apparatus for Challenge Course |
US20210106855A1 (en) * | 2019-10-10 | 2021-04-15 | Saudi Arabian Oil Company | Systems, Methods, and Apparatuses for Ensuring Worker Safety |
US11247080B2 (en) * | 2019-10-10 | 2022-02-15 | Saudi Arabian Oil Company | Systems, methods, and apparatuses for ensuring worker safety |
US11623108B2 (en) | 2020-05-19 | 2023-04-11 | Us Safety Technologies Llc | Safety harness motion detector systems and methods for use |
US11684811B2 (en) * | 2020-05-19 | 2023-06-27 | Us Safety Technologies Llc | Safety harness motion detector systems and methods for use |
US20220146261A1 (en) * | 2020-05-19 | 2022-05-12 | Us Safety Technologies Llc | Safety Harness Motion Detector Systems and Methods for Use |
US20220254240A1 (en) * | 2020-07-16 | 2022-08-11 | Joseph Clinton Meyers | Apparatus for anchoring a fall protection system and transmitting a fall alert |
US11663897B2 (en) * | 2020-07-16 | 2023-05-30 | Joseph Clinton Meyers | Apparatus for anchoring a fall protection system and transmitting a fall alert |
CN113463936A (en) * | 2021-05-28 | 2021-10-01 | 锡林郭勒热电有限责任公司 | Automatic following anti-falling protection device and safety monitoring system |
CN115212483A (en) * | 2022-07-20 | 2022-10-21 | 广东电网有限责任公司 | Safety belt state monitoring system and method for aerial work |
Also Published As
Publication number | Publication date |
---|---|
ES2620024T3 (en) | 2017-06-27 |
AU2013340560A1 (en) | 2015-06-04 |
EP3138610A1 (en) | 2017-03-08 |
WO2014068266A2 (en) | 2014-05-08 |
DK3138610T3 (en) | 2018-06-14 |
GB2510096B (en) | 2015-08-26 |
CN109589516A (en) | 2019-04-09 |
CN105025987B (en) | 2018-11-13 |
KR102186674B1 (en) | 2020-12-07 |
KR20150084023A (en) | 2015-07-21 |
DK2914350T3 (en) | 2017-03-27 |
JP6369838B2 (en) | 2018-08-08 |
CA2890005C (en) | 2021-09-07 |
ES2665333T3 (en) | 2018-04-25 |
AU2013340560B2 (en) | 2017-12-07 |
CA2890005A1 (en) | 2014-05-08 |
WO2014068266A3 (en) | 2014-08-28 |
CN105025987A (en) | 2015-11-04 |
NZ708471A (en) | 2017-12-22 |
HK1217118A1 (en) | 2016-12-23 |
JP2015533440A (en) | 2015-11-24 |
EP2914350B1 (en) | 2016-12-14 |
GB201219688D0 (en) | 2012-12-12 |
EP2914350A2 (en) | 2015-09-09 |
GB2510096A (en) | 2014-07-30 |
EP3138610B1 (en) | 2018-02-28 |
NO3138610T3 (en) | 2018-07-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2890005C (en) | Safety equipment | |
KR101526938B1 (en) | Realtime Warn System for using a Safety Management in field and Drive Method of the Same | |
CN106492368A (en) | A kind of power plant's work high above the ground intelligent and safe band based on GPRS mechanicss of communication | |
US20120050036A1 (en) | Harness for Fall Protection | |
US20200242915A1 (en) | Fall detection alert/alarm device and method | |
US11730984B2 (en) | Weight bearing fall protection connector having a wireless fall indicator | |
CN104361714B (en) | The anti-cheating personal security's protector of work high above the ground based on computer vision | |
US11969612B2 (en) | Safety equipment | |
CN210655725U (en) | Elevator monitoring alarm device | |
US20190269949A1 (en) | Safety equipment | |
CN207867646U (en) | A kind of rays safety detection apparatus anti-intrusion monitoring device and rays safety detection apparatus | |
KR102286381B1 (en) | Safety management system with coupling checking sensor of safety hooks for high-place working | |
CN206577270U (en) | A kind of power plant's work high above the ground intelligent and safe band based on GPRS mechanicss of communication | |
KR200423964Y1 (en) | Monitoring system of fire engine with server | |
CN209173258U (en) | Safety belt with warning device | |
KR20230125957A (en) | Alarm in lifejacket harness |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SKANSKA UK PLC, UNITED KINGDOM Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KENNEDY, RICHARD;HOYOS, ALEX;SIGNING DATES FROM 20150824 TO 20150907;REEL/FRAME:036746/0019 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |