公开(公告)号：US11504557B2

公开(公告)日：2022-11-22

申请号：US16630584

申请日：2018-07-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael A. Boraas ,  Keith G. Mattson

IPC: A62B35/00 ,  A62B35/04

Abstract: A non-motorized fall-protection apparatus, comprises a drum, and a rotationally-activated braking device that comprises at least one pawl and at least one ratchet with at least one tooth that is engagable by an engaging end of the at least one pawl, wherein the rotationally-activated braking device comprises a limited-use, constant-contact friction brake comprising at least one layer of friction material with a friction-braking surface and at least one rotatable member with a contact surface that is in contact with the friction-braking surface of the layer of friction material.

公开(公告)号：US20220054873A1

公开(公告)日：2022-02-24

申请号：US17517894

申请日：2021-11-03

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael A. Boraas

IPC: A62B35/00

Abstract: A fall-protection apparatus with a movable protective shroud and with a sleeve assembly, the sleeve assembly including an informational sheet that is compactable and extendable.

公开(公告)号：US20210308502A1

公开(公告)日：2021-10-07

申请号：US17264178

申请日：2019-08-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Matthew J. Blackford ,  Michael A. Boraas ,  Ronald D. Jesme ,  Nitsan Ben-Gal Nguyen ,  Peter L. Olson

IPC: A62B35/00

Abstract: There is provided fall protection equipment, such as a self-retracting lifeline (SRL), including features that enable the SRL to determine a worker's location and a map of a surface on which the worker is working. There is also provided an SRL having a lifeline with a distal end for connection to a user, at least one sensor adapted to determine the tension in the lifeline, and a computing device comprising a processor and a memory.

公开(公告)号：US11213705B2

公开(公告)日：2022-01-04

申请号：US16495224

申请日：2018-03-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael A. Boraas

IPC: A62B35/00

Abstract: A fall-protection apparatus with a movable protective shroud and with a sleeve assembly, the sleeve assembly including an informational sheet that is compactable and extendable.

公开(公告)号：US20210196996A1

公开(公告)日：2021-07-01

申请号：US17057519

申请日：2019-05-21

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael A. Boraas

IPC: A62B35/00

Abstract: An impact indicator for a fall-protection apparatus. The indicator includes a deflectable element that is deflectable to allow movement of a movable component of the impact indicator from a first, non-indicating position to a second, indicating position. Also disclosed are kits, methods and systems that use impact indicators and that facilitate installation of a replacement impact indicator in the field.

公开(公告)号：US20200030644A1

公开(公告)日：2020-01-30

申请号：US16495224

申请日：2018-03-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael A. Boraas

IPC: A62B35/00

Abstract: A fall-protection apparatus with a movable protective shroud and with a sleeve assembly, the sleeve assembly including an informational sheet that is compactable and extendable.