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:
Mar. 29, 1977
Filed:
Aug. 07, 1975
Applicant:
Inventor:
Allen E Armstrong, Lexington, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B62L / ;
U.S. Cl.
CPC ...
188 24 ; 188 / ; 188 729 ;
Abstract
Multi-stage engagement of a bicycle wheel rim is effected by force simultaneously applied to a slidable caliper and a pivoted caliper causing sequential displacement of the calipers. Displacement of the slidable caliper at a low leverage ratio is terminated by a locking action in response to initial brake contact to cause subsequent pivotal displacement of the pivoted caliper at a high leverage ratio for increased braking contact with the wheel rim.