Expander brake/clutch assembly and method of making same

US8967356B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8967356-B2
Application numberUS-201313763773-A
CountryUS
Kind codeB2
Filing dateFeb 11, 2013
Priority dateFeb 11, 2013
Publication dateMar 3, 2015
Grant dateMar 3, 2015

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  1. Title

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  2. Abstract

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  4. Key dates

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A pneumatic expander brake/clutch having a first power transmission member as a drum with an annular friction surface on the outer periphery. Arcuate backing block segments are circumferentially closely spaced and adjacent about the drum friction surface. The backing blocks have brake friction pads on the radially inner surface. An inflatable expander ring surrounds the backing blocks and upon inflation forces the blocks radially inward and the pads against the drum friction surface. Baffles are provided on the end of the backing blocks and extend into the spaces between circumferentially adjacent blocks to form a tortuous path for heat emanating from the drum friction surface in a radially outer direction. The baffles insulate the inflatable expander from heat which permits the drum friction surface to operate at a higher temperature, and power transmission/dissipation without overheating the expander.

First claim

Opening claim text (preview).

The invention claimed is: 1. A pneumatic expander brake/clutch assembly comprising: (a) a first power transmission element; (b) a second power transmission element disposed for rotation with respect to the first element and including an annular friction surface; (c) an annular array of a plurality of arcuate elements disposed on the first power transmission element in circumferentially spaced arrangement about the annular friction surface and movable radially with respect to t…

Assignees

Inventors

Classifications

  • Mechanical Engineering · mapped topic

  • F16D25/046Primary

    Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • Cross-Sectional Technologies · mapped topic

  • Mechanical Engineering · mapped topic

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Frequently asked questions

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What does patent US8967356B2 cover?
A pneumatic expander brake/clutch having a first power transmission member as a drum with an annular friction surface on the outer periphery. Arcuate backing block segments are circumferentially closely spaced and adjacent about the drum friction surface. The backing blocks have brake friction pads on the radially inner surface. An inflatable expander ring surrounds the backing blocks and upon …
Who is the assignee on this patent?
Boonpongmanee Thaveesak, Eaton Corp
What technology area does this patent fall under?
Primary CPC classification F16D25/046. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Mar 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).