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. 06, 1977
Filed:
Nov. 08, 1976
Eugene A Farrell, Fishers Landing, NY (US);
Frink Sno-Plows, Clayton, NY (US);
Abstract
A truck has a pusher frame secured to its front end and has a space between its cab and its body at the rear. A front post is secured to the pusher frame and a rear post is secured to the vehicle frame between the cab and body. Each post includes a vertically disposed rectangular tubular way having a slot along one side and a double acting hydraulic cylinder having its piston rod secured to the bottom end of the way and the lower end of its cylinder secured to the rectangular portion of a pair of spaced plates adapted to slide within the posts. The cylinder has a piston secured to the upper end of a double tubed piston rod, one tube being telescoped within the other and having an annular space therebetween, the central tube extending beyond the other at each end. Both connecting rod tubes have means for admitting fluid under pressure at their lower ends, the space between the tubes being sealed at this end, the inner tube extending through the piston at its top for expanding the device and the outer tube having openings below the piston for connecting the space between the tubes to the cylinder for lowering the cylinder. The pair of spaced plates of the slide have a narrow tongue portion projecting through the post slots and connected to a vertically extending slide portion slidable on the exterior of the post. A patrol wing plow blade has its front end pivotally connected to the front post slide and its trailing end pivotally and adjustably connected by a plurality of arms to the rear post slide.