Fall-protection apparatus comprising friction brake
US11504557B2 · kind B2 · utility
1Cited by
21References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2018 |
| Grant date | Nov 22, 2022 |
| Priority date | — |
| Expiry date | Nov 10, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B35/04
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.