Invention Grant
- Patent Title: Apparatus and method for extending door brake lifespan
- Patent Title (中): 延长门制动器寿命的装置和方法
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Application No.: US14012860Application Date: 2013-08-28
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Publication No.: US09228385B2Publication Date: 2016-01-05
- Inventor: David Lueker
- Applicant: Cornell Ironworks Enterprises
- Applicant Address: US PA Mountaintop
- Assignee: CORNELL IRONWORKS ENTERPRISES
- Current Assignee: CORNELL IRONWORKS ENTERPRISES
- Current Assignee Address: US PA Mountaintop
- Agency: Snell & Wilmer L.L.P.
- Main IPC: A47G5/02
- IPC: A47G5/02 ; E05F5/00 ; E05D13/00

Abstract:
The present disclosure includes a retrofitted door brake. The retrofitted door brake may, in various embodiments, comprise a hub comprising a cylindrical central axle, a plurality of projections extending radially away from an outer circumference of the central axle, and/or a cam comprising a plurality of pins that hold the projections away from a channel wall of a brake housing. The pins may be configured to break away from the cam to release the projections into contact with the channel wall, and the pins may be fitted with a cover, such that the pins are capable of withstanding abrasion and wear. The cover may comprise a cylinder having an axially running aperture, and/or a beveled edge that shaves a layer of the outer surface from one of the plurality of pins as it is fitted over the pin.
Public/Granted literature
- US20150059252A1 APPARATUS AND METHOD FOR EXTENDING DOOR BRAKE LIFESPAN Public/Granted day:2015-03-05
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