Spring brake pushrod to park diaphragm interface
US11745716B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 2020 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Oct 21, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60T17/088
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An interface between an adapter push rod and a parking brake diaphragm seal includes an axial projection at one end of the push rod, a thread extending axially between a free end of the projection and a remainder of the push rod, and a washer having an approximately conical wall extending radially inwardly from an outer circumference of the washer towards a central mounting connection having a radial flange. A nut is threaded over the free end of the projection, and an opening in a hardened element is aligned axially with the projection to receive the projection. A circumferential groove defined in a side of the radial flange forms a boundary between the approximately conical wall and a remainder of the washer, and a portion of the diaphragm seal is pressed by the nut and the hardened element into the circumferential groove to produce a sealing bead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.