The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 03, 1995
Filed:
Jun. 15, 1993
Applicant:
Inventor:
William C Pierce, Muskegon, MI (US);
Assignee:
NAI Anchorlok, Inc., Muskegon, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01B / ; F01B / ;
U.S. Cl.
CPC ...
92 63 ; 188170 ; 92 99 ;
Abstract
A fluid-operated spring brake actuator has a funnel-shaped pressure plate which reduces the volume of fluid necessary to compress the spring and release the brake thereby providing a faster response time upon actuation of the brake.