GB2561849A - Fall arrest device - Google Patents
Fall arrest device Download PDFInfo
- Publication number
- GB2561849A GB2561849A GB1706491.6A GB201706491A GB2561849A GB 2561849 A GB2561849 A GB 2561849A GB 201706491 A GB201706491 A GB 201706491A GB 2561849 A GB2561849 A GB 2561849A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strap
- fall arrest
- pole
- arrest device
- coupling
- 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.)
- Withdrawn
Links
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
- A62B35/04—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion incorporating energy absorbing means
-
- 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
-
- 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
-
- 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
- A62B35/0037—Attachments for lifelines and lanyards
-
- 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
-
- 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
- A62B35/005—Vertical lifelines
-
- 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
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B27/00—Apparatus for climbing poles, trees, or the like
-
- 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
- A62B35/0068—Anchors
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Emergency Lowering Means (AREA)
Abstract
A fall arrest device 1 for use in climbing a pole comprises a flexible strap 2 for encircling and gripping the pole and having at its ends a pair of connecting elements 7 adapted to receive a coupling strap 6 which is, in use, connected to the harness of a user. The coupling strap 6 further comprises one or more energy absorbing components 10 which are provided to reduce the forces acting on a falling user of the device. The energy absorbing components 10 preferably take the form of a shock absorber, roller inertia reel, elasticated webbing or elasticated rope. The shock absorber in particular may preferably comprise a length of webbing material which is folder over onto itself to form layers which are secured together by stitching, and wherein the stitching is configured to rupture under forces equivalent to those transmitted by a falling user. A fall indicator which may indicate that the device should not be re-used may also be provided. The flexible strap 2 may further be provided with handles 5 for facilitating movement of the strap in use and/or gripping regions 4 for gripping the surface of the pole when urged into contact with it.
Description
(71) Applicant(s):
Safety Technology Ltd
The Stone Barn, Lower Ty-Newydd, Clytha, Raglan, Monmouth, NP15 2BQ, United Kingdom (72) Inventor(s):
Benjamin Jon Williams Robert Andrew Dickens (56) Documents Cited:
GB 2372460 A US 20160310794 A1
US 20160213961 A1 US 20080060872 A1
US 20050039980 A1 US 20030057018 A1 (58) Field of Search:
INT CLA62B, A63B
Other: WPI, EPODOC, Patent fulltext (74) Agent and/or Address for Service:
Marches Intellectual Property Ltd
Wyastone Business Park, Wyastone Leys, Ganarew,
Monmouth, NP25 3SR, United Kingdom (54) Title of the Invention: Fall arrest device
Abstract Title: A fall arrest device for use in climbing a pole (57) A fall arrest device 1 for use in climbing a pole comprises a flexible strap 2 for encircling and gripping the pole and having at its ends a pair of connecting elements 7 adapted to receive a coupling strap 6 which is, in use, connected to the harness of a user. The coupling strap 6 further comprises one or more energy absorbing components 10 which are provided to reduce the forces acting on a falling user of the device. The energy absorbing components 10 preferably take the form of a shock absorber, roller inertia reel, elasticated webbing or elasticated rope. The shock absorber in particular may preferably comprise a length of webbing material which is folder over onto itself to form layers which are secured together by stitching, and wherein the stitching is configured to rupture under forces equivalent to those transmitted by a falling user. A fall indicator - which may indicate that the device should not be re-used - may also be provided. The flexible strap 2 may further be provided with handles 5 for facilitating movement of the strap in use and/or gripping regions 4 for gripping the surface of the pole when urged into contact with it.
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Fall Arrest Device
Field of the Invention
The present invention relates to a fall arrest device for use by a pole climber whilst ascending and descending a pole, for example a tree or a utility pole.
Background of the Invention
Workers engaged in working at height on poles, such as workers carrying out maintenance or repair work on poles carrying telephone or power supply lines or arborists working at height on trees, face an ever-present risk of falling from or slipping down the pole resulting in potentially severe or even fatal injuries .
In order to improve the safety of the climber whilst ascending or descending the pole, various fall arrest devices have been developed.
Fall arrest devices in current use are generally designed to choke around the pole in the event of a fall, thereby arresting the fall of the climber. Typically, such devices are designed to encircle the pole and attach to a harness worn by the climber and are provided with engaging members which engage the pole during a fall, thereby dissipating the energy of the fall to the pole. It is normally expected that the device will undergo slippage down the pole before coming to rest, with the main dissipation of the energy of the fall arising from the slowing down as the choke device gradually bites on the pole.
The safety standard in the United Kingdom relating to fall prevention and fall arrest devices for use on poles whilst ascending and descending is Energy Networks Association
Technical Specification 43-123 (1999). This industry standard sets out the permissible maximum fall distance, arrest force and rearward jack-knife acceleration for fall prevention/fall arrest choke devices which attach to a full body harness worn by the climber, either via the side attachment points of an integral waist belt, if present, or by a single attachment to a presternum attachment point.
In the case of devices intended for use on wood poles incorporating a PVC covered cable along the axis of the pole where the attachment point or points can be above the level of the device on the pole, the industry standard requires that the maximum slippage on a clean pole in drop tests should not exceed 1 metre. With such devices, the peak arrest force should not exceed 6.0 kN and the rearward jack knife acceleration (which occurs when the spine is forced into a rearward arch under forces applied at or near waist level) should not exceed 4g.
Currently available fall arrest devices are all designed to allow for slippage in use, subject to the force limitations and slippage distances set forth in the safety standard not being exceeded. Although the use of such a device will arrest a user's fall, the significant fall distances involved expose the user to the potential for injuries resulting from coming into contact with the pole and sliding along its length. Moreover, the sensation of slipping renders the user's experience an unpleasant one .
There therefore remains a continuing need for the development of an improved fall arrest device in order to overcome the problems associated with known fall arrest devices.
Summary of the Invention
The present invention is based on the finding that by altering the manner in which the fall arrest device is attached to the harness worn by the climber to incorporate energy absorbing components, an improved device which provides for rapid fall arrest with minimal slippage whilst minimising the extent to which the force of such rapid arrest is transmitted to the user may be provided.
The present invention therefore provides a fall arrest device for use in climbing up or down a pole comprising:
(a) a flexible strap for substantially encircling the pole and adapted to grip the pole, the flexible strap having a first and a second end portion;
(b) a coupling strap , the coupling strap being adapted to be connected, in use, to a harness worn by a user; and (c) a pair of connecting elements, each connecting element being located at a respective opposite end of the flexible strap and adapted to receive the coupling strap so as to connect the flexible strap to the coupling strap;
wherein the coupling strap comprises one or more energy absorbing components
In use and in the event of a fall, force is applied from the user's harness through the coupling strap to the flexible strap to cause the flexible strap to grip the pole and arrest the fall in a minimal fall distance, the forces acting on the falling user being limited by the one or more energy absorbing components of the coupling strap.
The action of the coupling strap pulling tightly on the flexible strap through the connecting elements, combined with the grip from the flexible strap, causes the fall arrest device to choke on the pole almost instantaneously with minimal slippage. The incorporation of one or more energy absorbing components in the coupling strap connecting the flexible strap to a harness worn by the user provides a mechanism for absorbing the unacceptably high peak arrest and acceleration forces which would otherwise be generated in a very short falling distance.
By means of the invention, therefore, a fall arrest device is provided which not only meets the industry standard requirement regarding the impact loads on the user but also affords a significant reduction in fall distance compared to current devices, reducing the risks of injury to the user and providing a less stressful experience for the user.
Detailed description of the Invention
The fall arrest device according to the invention may be used in any situation involving working at height on a pole, such as by a worker carrying out maintenance or repairs on poles carrying telephone or power supply lines.
Suitably, the pole is a timber pole but the invention is not limited to use on timber poles and the use of poles comprising other materials such as fibre glass, steel and concrete is envisaged. Included within the definition of a pole according to the invention is a tree trunk.
As used herein, a flexible strap may suitably be formed from any flexible material conventionally used in pole climbing and safety devices such as rope, a fabric material or a non-fabric material, for example a plastics material or a plastic covered metal material, or a metal or steel wire.
Conveniently, the flexible strap is formed from a resiliently flexible material.
A flexible strap comprising a fabric material may be formed from a length of fabric material of single thickness but conveniently, a flexible strap comprising a fabric material may be formed along at least part of its length by a double thickness or greater of fabric material.
A flexible strap comprising a fabric material of at least double thickness may conveniently be prepared by folding a single length of fabric material into two or more lengths and securing the lengths together or it may be prepared be securing two or more lengths of fabric material together. Suitably, in either embodiment, the fabric lengths may be secured together by stitching.
In one particular embodiment according to the invention, the flexible strap is formed from a fabric material comprising a webbing material. Suitably, the webbing material for use according to the invention is woven from synthetic fibres such as nylon, polypropylene or polyester fibres.
Conveniently, the length of the flexible strap is adjustable to accommodate the use of the device according to the invention on poles of varying diameters.
Suitably, the flexible strap comprises an adjusting element by means of which the user can adjust the length of the flexible strap when the device is in place to ensure that a close fit around the pole is achieved. It will be appreciated, however, that the fit should not be so close as to prevent the device being moved up or down the pole as the user ascends or descends.
In one embodiment, the flexible strap comprises an adjustable buckle for adjusting the length of the flexible strap.
The flexible strap of the device according to the invention is adapted to grip the pole which it substantially encircles.
It will be appreciated that where the flexible strap is formed from a resiliently flexible material, the resilience of the strap material may itself cause the flexible strap to grip the pole .
In one embodiment, the flexible strap is provided with one or more gripping regions for gripping the surface of the pole when urged into contact with it, for example by the action of the coupling strap pulling on the flexible strap through the connecting elements when the user starts to fall.
It will be appreciated that adjustment of the flexible strap will change the position of the one or more gripping regions around the circumference of the pole.
In one embodiment, the one or more gripping regions comprise one or more rubber grips coupled to, or more preferably integral with, the flexible strap.
Preferably, the flexible strap is provided with two or more rubber grips spaced apart along the length of the flexible strap such that, in use, the flexible strap grips the pole at more than one point spaced around the circumference of the pole.
In one embodiment, the flexible strap is provided with a pair of handles which are adapted to be gripped by the user to aid in climbing up or down the pole. The handles may be gripped by the user and moved upwards or downwards along the pole as required when the user is climbing up or down the pole.
Suitably, the handles are spaced along the flexible strap at a sufficient distance apart such that when, in use, the flexible strap is in place around the pole, each individual handle is located at a position towards either side of the pole and readily accessible to the user.
The handles may be coupled to, or formed integral with, the flexible strap and may suitably be formed from any material conventionally used in pole climbing and safety devices.
Each end of the flexible strap is provided with a connecting element adapted to receive the coupling strap, thereby connecting the coupling strap, when received in the connecting elements, to the flexible strap and completing the encirclement of the pole. The coupling strap itself is adapted to be connected, in use, to a harness worn by the user.
In this way, the device according to the invention may be coupled to the user and in the event of a fall, the force of the fall may be transmitted from the user's harness to the flexible strap substantially encircling the pole by means of the coupling strap.
Any suitable connecting element which is capable of receiving a coupling strap may be used according to the invention. In one embodiment, the connecting element located at each end of the flexible strap may be a connecting ring, for example a D-ring or some such similar connecting element conventional in the pole climbing art such as an O-ring, carabiner or snap hook, through which the coupling strap may pass.
In one particular embodiment, the coupling strap passes through D-ring connecting elements located at the respective ends of the flexible strap.
In one embodiment, at least one of the connecting elements is openable to facilitate the fitting of the flexible strap around the pole. With the flexible strap in place and substantially encircling pole and the coupling strap coupled to the connecting elements located on the respective ends of the flexible strap, the connecting element can then be closed again, with the flexible strap and connecting strap forming a ring which completely encircles the pole.
The coupling strap in the device according to the invention is suitably any elongate load supporting line conventionally used in fall arrest devices. Conveniently, the coupling strap may comprise a rope or webbing material or a steel wire.
The coupling strap in the device of the present invention comprises one or more energy absorbing components. The one or more energy absorbing components act to limit the forces acting on the falling user when force is applied from the user's harness through the coupling strap to the flexible strap to cause the flexible strap to grip the pole and arrest the fall with minimal falling distance.
Suitable energy absorbing components which may be used include shock absorbers formed from a length of webbing material folded over onto itself one or more times and the layers secured together, for example by stitching. As the user to which the coupling strap is attached falls, the stitching of the webbing starts to tear and resistance from the webbing as the stitching is torn absorbs the energy of the falling body.
Alternatively, energy absorbing components such as roller inertia reels, elasticated webbing, elasticated rope and cam type shock absorbing devices may suitably be employed.
The one or more energy absorbing components may be connected to or integral with the coupling strap.
In one embodiment, the coupling strap comprises a fall indicator to indicate when the fall arrest mechanism has been deployed and alerting the user to the need to replace the energy absorbing component.
The coupling strap is adapted to be connected to a harness worn by a user. Suitably the coupling strap is provided with one or more apertures for the attachment of a D-ring or similar connector to connect the coupling strap to an anchor point on the user's harness. Such an aperture may be formed in the coupling strap or may comprise an external aperture which may be securely fixed to the coupling strap. Conveniently, for example, the coupling strap is connected to D-rings on a harness via a carabiner or similar auto locking or screw gate connector.
In one embodiment, the coupling strap is provided with a pair of apertures spaced apart along the length of the connecting strap such that, in use, the device can be attached to anchor points on either side of the waistband of the user's harness.
Suitably, the coupling strap comprises an adjusting element by means of which the user can adjust the length of the coupling strap when the device is in place to ensure that the user is at an optimal distance from the pole for working. Any suitable strap adjusting element conventional in the climbing art may conveniently be used, such as rope adjustment devices for descending rope.
In the event of a fall, the user's harness pulls down tightly on the coupling strap, causing the respective end portions of the flexible strap to which the coupling strap is connected to move towards each other and urging the flexible strap to grip the pole and arrest the fall, the forces acting on the falling user being limited by the one or more energy absorbing components of the coupling strap.
An embodiment of the invention will now be particularly described by way of non-limiting example with reference to the accompanying drawings in which:
Figure 1 shows a fall arrest device according to the invention;
Figure 2 shows an alternative fall arrest device according to the invention;
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As shown in Figures 1 and 2, the fall arrest device indicated generally at 1 comprises a flexible strap 2 which substantially encircles a pole (not shown).
The flexible strap is provided with an adjusting element 3 (which in the embodiment shown is an adjustment buckle) for altering the length of the flexible strap when the device is in place so as to achieve a close fit around the pole. The flexible strap also comprises a pair of rubber grips 4, arranged at either side of the adjustment buckle, which act to grip the pole when urged into contact with it during the operation of the device. A pair of handles 5 for gripping by the user to aid climbing up or down the pole are located spaced apart along the outer side of the flexible strap (the side not in contact with the pole)
The flexible strap is coupled to a coupling strap 6 by means of connecting elements 7 (a pair of D-rings) located at the end portions of the flexible strap. The coupling strap passes through the rings of the connecting elements, the flexible strap and coupling strap therefore forming a ring which completely encircles the pole.
The coupling strap is provided with an adjusting element 8 so that when the device is in place, the user can adjust the length of the coupling strap to achieve the desired distance from the pole for optimal working.
The coupling strap is provided with a pair of connectors 9 (a pair of D-rings) for connecting the coupling strap to anchor points on the waistband of the user's harness. In use and in the event of a fall, the force of the fall will therefore be transmitted from the user's harness to the flexible strap substantially encircling the pole by means of the coupling strap.
The coupling strap is provided with an energy absorbing component 10 (which in the embodiment shown is folded over sewn webbing) in a protecting sleeve 11.
The device of Figure 1 shows a single energy absorbing component present whereas in the embodiment of the device according to the invention shown in Figure 2, a pair of energy absorbing components is present, each one located spaced apart along the coupling strap. In the embodiment shown in Figure 2, each individual energy absorbing component is located on either side of the device and at a position between the point where the coupling strap passes through the rings of the connecting elements located at the end portions of the flexible strap and the point where the coupling strap connects to the user's harness. In use, the energy absorbing component/s limit the forces acting on a falling user arising from the rapid fall arrest achieved when the force from the falling user's harness is applied through the coupling strap to the flexible strap to cause it to grip the pole and arrest the fall in a minimal fall distance .
Claims (19)
1. A fall arrest device for use in climbing up or down a pole comprising :
(a) a flexible strap for substantially encircling the pole and adapted to grip the pole, the flexible strap having a first and a second end portion;
(b) a coupling strap , the coupling strap being adapted to be connected, in use, to a harness worn by a user; and (c) a pair of connecting elements, each connecting element being located at a respective opposite end of the flexible strap and adapted to receive the coupling strap so as to connect the flexible strap to the coupling strap;
wherein the coupling strap comprises one or more energy absorbing components
2. A fall arrest device according to claim 1, wherein in use in the event of a fall, a force is applied from the user's harness through the coupling strap to the flexible strap to cause the flexible strap to grip the pole and arrest the fall.
3. A fall arrest device according to claim 1 or claim 2, wherein the flexible strap is adjustable in length for accommodating poles of differing diameters.
4. A fall arrest device according to any one of the preceding claims, wherein the flexible strap comprises a resilient material.
5. A fall arrest device according to any one of the preceding claims, wherein the flexible strap comprises a fabric material.
6. A fall arrest device according to claim 5, wherein the flexible strap comprises a webbing material.
7. A fall arrest device according to any one of the preceding claims, wherein the flexible strap comprises one or more gripping regions for gripping the surface of the pole when urged into contact with it.
8. A fall arrest device or more gripping regions according to comprise one claim 7, wherein the one or more rubber grips.
9. A fall arrest device according to claim 8, wherein the flexible strap comprises two or more rubber grips spaced apart along the length of the flexible strap.
10. A fall arrest device according to any one of the preceding claims, wherein the flexible strap comprises a pair of handles.
11. A fall arrest device according to any one of the preceding claims, wherein the pair of connecting elements for connecting the flexible strap to the coupling strap comprises a pair of connecting rings through which the coupling strap passes.
12. A fall arrest device according to claim 11, wherein at least one of the connecting elements is openable to facilitate fitting of the flexible strap around the pole.
13. A fall arrest device according to any one of the preceding claims, wherein the coupling strap comprises a rope, webbing material or steel wire.
14. A fall arrest device according to any one of the preceding claims, wherein the one or more energy absorbing components comprise a shock absorber, roller inertia reel, elasticated webbing or elasticated rope.
15. A fall arrest device according to claim 14, wherein the one or more energy absorbing components comprises a shock absorber comprising a length of webbing material which is folded over onto itself one or more times to form layers and the layers so formed are secured together by stitching.
16. A fall arrest device according to any one of the preceding claims, wherein the coupling strap further comprises a fall indicator.
17. A fall arrest device according to any one of the preceding claims, wherein the coupling strap comprises one or more apertures for the attachment of connector to connect the coupling strap to an anchor point on the user's harness.
18. A fall arrest device according to claim 17, wherein the coupling strap comprises a pair of apertures spaced apart along the length of the connecting strap to enable the device, in use, to be attached to anchor points on either side of the waistband of a user's harness.
19. A fall arrest device according to any one of the preceding claims, wherein the coupling strap further comprises an adjusting element to adjust the length of the coupling strap such that when, in use, the coupling strap is connected to the user's harness, the distance of the user from the pole is adjustable .
Intellectual
Property
Office
Application No: GB1706491.6 Examiner: Mr Geraint Davies
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1706491.6A GB2561849A (en) | 2017-04-24 | 2017-04-24 | Fall arrest device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1706491.6A GB2561849A (en) | 2017-04-24 | 2017-04-24 | Fall arrest device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201706491D0 GB201706491D0 (en) | 2017-06-07 |
| GB2561849A true GB2561849A (en) | 2018-10-31 |
Family
ID=58795879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1706491.6A Withdrawn GB2561849A (en) | 2017-04-24 | 2017-04-24 | Fall arrest device |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2561849A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2372460A (en) * | 2001-01-27 | 2002-08-28 | Dunn & Cowe Ltd | Climbing device |
| US20030057018A1 (en) * | 2001-09-27 | 2003-03-27 | Dodson William D. | Retractable safety tether and harness assembly |
| US20050039980A1 (en) * | 2003-08-18 | 2005-02-24 | Diggle Frederick J. | Torso harness |
| US20080060872A1 (en) * | 2006-09-11 | 2008-03-13 | Tech Safety Lines, Inc. | Fall Arrest Lanyard |
| US20160213961A1 (en) * | 2015-01-28 | 2016-07-28 | Bashlin Industries, Inc. | Fall Restriction Device |
| US20160310794A1 (en) * | 2015-04-24 | 2016-10-27 | Buckingham Manufacturing Company, Inc. | Pole Climbing Fall Restriction Assembly |
-
2017
- 2017-04-24 GB GB1706491.6A patent/GB2561849A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2372460A (en) * | 2001-01-27 | 2002-08-28 | Dunn & Cowe Ltd | Climbing device |
| US20030057018A1 (en) * | 2001-09-27 | 2003-03-27 | Dodson William D. | Retractable safety tether and harness assembly |
| US20050039980A1 (en) * | 2003-08-18 | 2005-02-24 | Diggle Frederick J. | Torso harness |
| US20080060872A1 (en) * | 2006-09-11 | 2008-03-13 | Tech Safety Lines, Inc. | Fall Arrest Lanyard |
| US20160213961A1 (en) * | 2015-01-28 | 2016-07-28 | Bashlin Industries, Inc. | Fall Restriction Device |
| US20160310794A1 (en) * | 2015-04-24 | 2016-10-27 | Buckingham Manufacturing Company, Inc. | Pole Climbing Fall Restriction Assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201706491D0 (en) | 2017-06-07 |
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