| US 7,543,692 B2 | ||
| Cam actuated drum brake | ||
| James R. Clark, Plainwell, Mich. (US); Dominic Licavoli, Kalamazoo, Mich. (US); James H. Sheets, Fort Wayne, Ind. (US); and Ralph W. Larson, Olivet, Mich. (US) | ||
| Assigned to Bendix Spicer Foundation Brake LLC, Elyria, Ohio (US) | ||
| Filed on Jan. 25, 2007, as Appl. No. 11/657,801. | ||
| Application 11/657801 is a continuation of application No. 10/894591, filed on Jul. 20, 2004, granted, now 7,175,009. | ||
| Prior Publication US 2007/0131502 A1, Jun. 14, 2007 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. F16D 51/00 (2006.01) | ||
| U.S. Cl. 188—325 [188/343; 74/567; 192/93 R] | 34 Claims |
| 1. A cam for use in a brake having first and second brake shoes and first and second cam followers in engagement with said
cam and with respective ones of said first and second brake shoes in which rotation of said cam in opposite rotational directions
about an axis of rotation causes said first and second brake shoes to move between positions of engagement and disengagement
with a braking surface, said cam comprising:
a first lobe; and,
a second lobe
wherein at least one lobe of said first and second lobes includes a first portion having a first profile and a second portion
having a second profile different from said first profile
wherein said second portion of said one lobe defines an aperture extending axially therethrough.
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