Friction element latch device
US-2020277999-A1 · Sep 3, 2020 · US
Brake cylinder with parking brake function
US8944527B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8944527-B2 |
| Application number | US-79247405-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 13, 2005 |
| Priority date | Jan 11, 2005 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A brake cylinder having a parking brake function includes a cylinder housing, a piston, and a piston tube for actuating a brake. A threaded bolt protruding into the piston tube and fixed to the cylinder housing by its upper end is used to effect the parking brake function. A clamping nut displaceable by means of a forked, axially rotatable driving element extends over the threaded bolt. The driving element is rotated with the clamping nut while the cylinder is subjected to pressure by the parking brake until the clamping nut is supported against the piston in the parking position of the piston. The piston is mechanically locked when the cylinder housing is not subjected to pressure.
First claim
Opening claim text (preview).
What is claimed is: 1. A brake cylinder, comprising: a cylinder housing; a piston, said piston including a piston tube for actuation of a brake, said piston tube having an open end; a rotatable threaded bolt extending into said open end of said piston tube; a non-rotatable clamping nut that travels along said rotatable threaded bolt during rotary movement of said bolt and, at a lowermost position, bears against said piston proximate said open end of said piston tube to actuate said…
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Classifications
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
- B60T17/16Primary
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US8944527B2 cover?
- A brake cylinder having a parking brake function includes a cylinder housing, a piston, and a piston tube for actuating a brake. A threaded bolt protruding into the piston tube and fixed to the cylinder housing by its upper end is used to effect the parking brake function. A clamping nut displaceable by means of a forked, axially rotatable driving element extends over the threaded bolt. The dri…
- Who is the assignee on this patent?
- Schrader Frank, Wabco Gmbh
- What technology area does this patent fall under?
- Primary CPC classification B60T17/16. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Feb 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).