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公开(公告)号:US20240261604A1
公开(公告)日:2024-08-08
申请号:US18571689
申请日:2023-03-16
Applicant: Beaver Technology Services Pty Limited
Inventor: Christopher DI LOSA
CPC classification number: A62B35/04 , A62B35/0068 , B66C23/90 , A62B35/0093 , B66C23/166
Abstract: A davit (10) for arresting the fall of a person working at heights or for material handling where lifting of overloaded material is prevented, has a mast (12), a fuse holder (14) at the top of mast, a fuse head (16) connected to the fuse holder and having sacrificial fuses (18) arranged in series thereon, a jib arm (20) connected to the fuse head, and a primary fall arrestor system (22) having an arresting load limit and mounted to a side of the mast if the davit is to be used for arresting the fall of a person (25) working at heights, and/or a primary lifting-overload prevention system having a working load limit and safety factors if the davit is to be used for material handling where lifting of overloaded material (78) is to be prevented. When excessive forces are being absorbed either by the primary fall arrestor system or by the primary lifting-overload prevention system, the fuse head rotates downwardly relative to the fuse holder, and causes the breaking of one or progressively more of the sacrificial fuses until enough fuses have been broken to absorb the excessive forces.
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公开(公告)号:US20240161593A1
公开(公告)日:2024-05-16
申请号:US18419005
申请日:2024-01-22
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Jonathan J. Lepp , Christopher J. Reineke , Kristin M. Mikes , Donaldo J. Medeiros , Jeffrey T. Keacher , Aline H. Hinkle , Christopher M. Higgins , Heidi A. Lopez-Hidalgo , Tyler B. Henn , Lauren K. Carlson , Michael T. Weiss
CPC classification number: G08B21/0446 , A62B35/0037 , A62B35/04
Abstract: An aerial lift that is interlocked with a fall-protection safety apparatus and may be further interlocked with at least one additional safety apparatus. The aerial lift is equipped with a monitoring system that is configured to detect whether a connector of a safety line of the fall-protection apparatus appears to be connected to a safety harness of a user of the aerial lift.
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公开(公告)号:US11865380B2
公开(公告)日:2024-01-09
申请号:US18013184
申请日:2021-07-09
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Greg E Schrank
CPC classification number: A62B35/0093 , A62B35/04
Abstract: A fall-protection apparatus comprising a rotationally-activated braking device that comprises at least one flexure-borne pawl.
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公开(公告)号:US11779784B2
公开(公告)日:2023-10-10
申请号:US18013212
申请日:2021-07-09
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Greg E. Shrank , Daniel C. Lewis
IPC: A62B35/00 , F16D59/00 , F16D63/00 , A62B35/04 , F16D121/14 , F16D127/00 , F16D127/02
CPC classification number: A62B35/0093 , F16D59/00 , F16D63/006 , A62B35/04 , F16D2121/14 , F16D2127/002 , F16D2127/02
Abstract: A fall-protection apparatus comprising a rotationally-activated braking device that comprises at least one flexure-borne pawl and at least one buttress that is on a sidewall of a rotatable drum of the braking device.
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公开(公告)号:US11753837B2
公开(公告)日:2023-09-12
申请号:US17242225
申请日:2021-04-27
Applicant: Engineered Supply LLC
Inventor: Arlen P. Grant , Ponsingh B. Devendran , Erling C. Grant
CPC classification number: E04G21/3295 , A62B35/005 , A62B35/0068 , A62B35/04 , E04G21/328 , F16M13/02
Abstract: In at least one embodiment, a rooftop rigging support system mounts to a roof a building for suspending a load under an eave of the building. In some embodiments, the rooftop rigging support system comprises an arm that extends outward over the eave and then back inward underneath the eave. In some embodiments, the arm is a generally rigid, non-articulating structure. In some embodiments, the arm can be manually pivoted between a deployed position reaching under the eave and a withdrawn position extending above the roof.
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公开(公告)号:US11730985B2
公开(公告)日:2023-08-22
申请号:US16644141
申请日:2018-09-04
Applicant: Alf Kristian Fjelldal
Inventor: Alf Kristian Fjelldal
CPC classification number: A62B35/04 , A62B35/0043 , F16F1/125 , F16G11/04
Abstract: An energy-absorbing structure for a tether line includes a helical spring and a first connector for securing a first end of the helical spring to a first fastener (such as a support cable section, an eye bolt or an eye nut). The first connector has an externally threaded portion for threadedly receiving the first end of the helical spring. A sleeve is provided on the connector, extending over at least part of the first end of the helical spring and the external threaded portion of the connector, for retaining the helical spring on the connector. Additionally or alternatively, the connector includes a tapered portion extending from the inner end of the externally threaded portion.
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公开(公告)号:US20230226382A1
公开(公告)日:2023-07-20
申请号:US17576186
申请日:2022-01-14
Applicant: Sherrill, Inc.
Inventor: Alexander P. Stroshane , Caitlin J. Wood
Abstract: The rope grab uses friction to control movement along the rope. A brake has an eye at one end and a foot at the other that extends away at an angle to a rounded toe. Optionally, the eye and foot are attached so as to swivel. A cam has an oval rocker and a lever that extends from the rocker opposite the rocker surface. The rocker surface curves eccentrically about an axis, so the rocker behaves like a cam to modulate friction on the rope. The rope extends through a slot and is pinched between an operative surface of the rocker surface and the toe. The brake and cam are held in the correct position relative to each other between two parallel walls of a housing with the eye and lever extending in generally opposite directions outside the housing. Optional springs bias the brake toe and operative surface into the slot.
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公开(公告)号:US20180264297A1
公开(公告)日:2018-09-20
申请号:US15571226
申请日:2016-04-28
Applicant: Safetylink Pty Ltd
Inventor: Arvo Poldmaa , Daniel Poldmaa
CPC classification number: A62B35/04 , A62B35/0056 , A62B35/0068 , F16F7/003 , F16F7/128 , F16F2224/0208 , F16F2226/047
Abstract: The present invention is directed to an anchor for anchoring to an elevated worksite. The anchor includes a shock absorbing portion configured to progressively distort under sudden loading, the shock absorbing portion having one or more serpentine shaped members each defining one or more serpentine shaped curves visible from a front view of the shock absorbing portion, the shock absorbing portion having a curved profile defining one or more curves visible from a side view of the shock absorbing portion. The curved profile is configured to progressively distort under sudden loading so as to provide a first level of shock absorption, and the serpentine shaped curves are configured to progressively distort under sudden loading to provide a second level of shock absorption.
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公开(公告)号:US20180178046A1
公开(公告)日:2018-06-28
申请号:US15392369
申请日:2016-12-28
Applicant: MSA Technology, LLC
Inventor: Benjamin T. Sepe , Karl Jones
Abstract: An external energy absorber may include a hub having a line associated therewith, the line including a first end directly or indirectly attached to the hub and a second end opposite the first end attached to a user, an energy absorbing arrangement directly or indirectly attached to the hub, the energy absorbing arrangement comprising an outer ring directly or indirectly attached to the hub, an inner ring directly or indirectly attached to a housing, and at least one energy absorbing member positioned between the outer ring and the inner ring, wherein the at least one energy absorbing member is configured to generate friction between the outer ring and the inner ring upon rotation of the hub, and the housing configured to hold the hub and energy absorbing arrangement.
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公开(公告)号:US09847010B2
公开(公告)日:2017-12-19
申请号:US14962833
申请日:2015-12-08
Applicant: Honeywell International Inc.
Inventor: Hai D. Pham , Steve D. Huseth , Amit Kulkarni
CPC classification number: G08B21/18 , A62B35/0025 , A62B35/04
Abstract: A fall protection harness includes a computer processor, an optical transmitter, and an optical receiver coupled. The optical transmitter and the optical receiver are optically coupled. Upon damage to the fall protection harness, the optical coupling between the optical transmitter and the optical receiver is broken, the computer processor senses the break in the optical coupling between the optical transmitter and the optical receiver; and the computer processor generates a signal indicating the damage.
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