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. 14, 1989
Filed:
Feb. 01, 1988
Marvin E Whiteman, Jr, Boise, ID (US);
Other;
Abstract
The invention relates to an apparatus for converting a unidirectional displacement to an angular displacement of selectable direction. The apparatus 10 has a rack gear assembly, which has two opposing rack gears 16 and 17 held in a parallel spaced relationship and constituting a coordinate plane. Disposed within the two opposing rack gears is rotational shaft 15 having attached to it engagement pin 21 for engaging a segmental pinion gear slot 22 or 23. A pair of opposing segmental pinion gears 13 and 14 are rotatably attached to shaft 15. Each segmental pinion gear 13 and 14 is engaged with a corresponding rack gear 16 and 17. The invention also provides a means for engaging the first said engagement means with either one of the two segmental pinion gears.