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公开(公告)号:US20220362593A1
公开(公告)日:2022-11-17
申请号:US17754958
申请日:2020-11-06
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Andrew C. Strauss , Nicholas G. Bauer , Michael T. Weiss , Nathan C. Meyer
IPC: A62B35/00
Abstract: A fall protection system includes a mast assembly including a fixed mast section, a movable mast section, and a winch assembly. The fall protection system further includes a locking mechanism adapted to lock the movable mast section relative to the fixed mast section. The locking mechanism includes a locking pawl connected to the winch assembly. The locking pawl is adapted to rotate between an engaged position and a disengaged position. The locking pawl engages with the fixed mast section in the engaged position to prevent relative movement between the fixed mast section and the movable mast section. The locking mechanism also includes at least one spring adapted to bias the locking pawl towards the engaged position. Further, the winch assembly is adapted to retain the locking pawl in the disengaged position against the biasing of the at least one spring based on a tension selectively applied by the winch assembly.
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公开(公告)号:US11951339B2
公开(公告)日:2024-04-09
申请号:US17754959
申请日:2020-11-06
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Andrew C. Strauss , Nicholas G. Bauer , Michael T. Weiss
CPC classification number: A62B35/0068 , E04G21/3238
Abstract: A fall protection system includes a base assembly, a mast assembly, and a locking assembly adapted to lock the mast assembly with the base assembly. The locking assembly includes a first plate and a second plate. The locking assembly also includes a fixed member fixedly coupled to the second plate. The locking assembly further includes a locking pin including an elongate portion at least partially received within the fixed member and a first tab, the locking pin being movable relative to the fixed member between an engaged position and a disengaged position. In the engaged position, the first tab is at least partially received within a first groove such that the locking pin is engaged with the first plate. Further, in the disengaged position, the first tab is at least partially received within a second groove such that the locking pin is spaced apart from the first plate.
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公开(公告)号:US20210053801A1
公开(公告)日:2021-02-25
申请号:US17094667
申请日:2020-11-10
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Greg E. Schrank , Andrew C. Strauss
Abstract: A confined-space davit, including a vertical, elongate mast provided by at least one annular tube; and, a boom that is pivotally connected to an upper end portion of the mast and that extends forwardly from the mast. The tube comprises a forward wall and an opposing rearward wall and comprises left and right opposing lateral sidewalls that each connect the forward wall to the rearward wall.
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公开(公告)号:US12102851B2
公开(公告)日:2024-10-01
申请号:US17754957
申请日:2020-11-06
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Andrew C. Strauss , Nicholas G. Bauer , Michael T. Weiss
CPC classification number: A62B35/0068 , B66C23/24 , B66C23/44 , B66C23/705 , B66C23/80 , E04G21/3238
Abstract: A fall protection system includes a base plate defining a first side and a second side defined opposite to the first side. The fall protection system also includes a mast assembly connected to the base plate proximate to the first side of the base plate. The fall protection system further includes a jib inclined with respect to the mast assembly and pivotably connected to the mast assembly. The fall protection system includes a counterweight connectable to the base plate proximate to the second side of the base plate.
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公开(公告)号:US20220379147A1
公开(公告)日:2022-12-01
申请号:US17754957
申请日:2020-11-06
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Andrew C. Strauss , Nicholas G. Bauer , Michael T. Weiss
IPC: A62B35/00
Abstract: A fall protection system includes a base plate defining a first side and a second side defined opposite to the first side. The fall protection system also includes a mast assembly connected to the base plate proximate to the first side of the base plate. The fall protection system further includes a jib inclined with respect to the mast assembly and pivotably connected to the mast assembly. The fall protection system includes a counterweight connectable to the base plate proximate to the second side of the base plate.
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公开(公告)号:US11713219B2
公开(公告)日:2023-08-01
申请号:US17094667
申请日:2020-11-10
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Greg E. Schrank , Andrew C. Strauss
CPC classification number: B66C23/166 , B66C23/022 , B66C23/06 , B66C23/701 , B66C2700/03
Abstract: A confined-space davit, including a vertical, elongate mast provided by at least one annular tube; and, a boom that is pivotally connected to an upper end portion of the mast and that extends forwardly from the mast. The tube comprises a forward wall and an opposing rearward wall and comprises left and right opposing lateral sidewalls that each connect the forward wall to the rearward wall.
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公开(公告)号:US20220379148A1
公开(公告)日:2022-12-01
申请号:US17754959
申请日:2020-11-06
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor: Andrew C. Strauss , Nicholas G. Bauer , Michael T. Weiss
IPC: A62B35/00
Abstract: A fall protection system includes a base assembly, a mast assembly, and a locking assembly adapted to lock the mast assembly with the base assembly. The locking assembly includes a first plate and a second plate. The locking assembly also includes a fixed member fixedly coupled to the second plate. The locking assembly further includes a locking pin including an elongate portion at least partially received within the fixed member and a first tab, the locking pin being movable relative to the fixed member between an engaged position and a disengaged position. In the engaged position, the first tab is at least partially received within a first groove such that the locking pin is engaged with the first plate. Further, in the disengaged position, the first tab is at least partially received within a second groove such that the locking pin is spaced apart from the first plate.
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