Piston assembly for human-powered vehicle
US11572128B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 19, 2020 |
| Grant date | Feb 7, 2023 |
| Priority date | — |
| Expiry date | Aug 5, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62K23/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A piston assembly is provided for a human-powered vehicle. The piston assembly includes a main body, a primary seal and a secondary seal. The main body is configured to be movable from a rest position to an actuated position along an actuation direction in a cylinder bore. The primary seal includes a primary seal body arranged on the main body, the primary seal body being made of the first seal material. The secondary seal includes a secondary seal body arranged on the main body at upstream of the primary seal with respect to the actuation direction. The secondary seal body is made of a second seal material that is more elastic than the first seal material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.