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:
Sep. 26, 1995
Filed:
Oct. 25, 1993
Link H Davis, Hurst, TX (US);
Henry J McGinnis, Fort Worth, TX (US);
Other;
Abstract
A mechanical drive assembly composed of an endless roller chain (78) and notched rail (100) wherein multiple chain rollers (79) engage corresponding rail notches (103 ) to securely interlock drive (38) and rail (100). Drive (38) is equipped with a triple-strand roller chain (78) whose center strand of rollers engage notched bar (102) while outer strand rollers roll across face of pressure plate (50). Drive assembly (38) may be held in a fixed position relative to a static rail (100) by applying a braking force to drive sprocket (76), or it may be moved tangentially to rail (100) by applying torque to drive sprocket (76). Conversely, rail (100) and any structure attached thereto may be held in a fixed position or moved tangentially relative to a statically mounted drive (38) by similar means.