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:
Aug. 03, 1976
Filed:
Sep. 23, 1974
Allen E Armstrong, Lexington, MA (US);
Other;
Abstract
A control mechanism adapted for incrementally and positively controlling the displacement of a biassed member or the like associated with a bicycle gear-change transmission between a plurality of predetermined positions for effectuating changes in gear ratios of such transmission in response to unidirectional movement of an operator control lever of the control mechanism. In addition, the control mechanism is also, preferably, provided with an 'overshift' arrangement which effectively and effortlessly enables an operator to shift the bicycle sprocket chain from one sprocket to another sprocket of larger diameter. In an alternate embodiment, the control mechanism is directly mounted on and connected to a derailleur type bicycle change-gear mechanism.