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:
Jun. 14, 1977
Filed:
Feb. 23, 1976
Claude D Zehrung, Jr, Lakewood, CO (US);
Bluebird International, Inc., Englewood, CO (US);
Abstract
A towable, wheel-mounted yard maintenance apparatus which may be a lawn comber having impact arms, a lawn mower having a cutting reel, or a sweeper having a cylindrical brush. The working elements, for example the impact arms, are carried upon a shaft within a transverse housing. This housing and the wheels are carried within the embrace of a structural frame. The frame extends in front of, and a short distance beyond each side of the housing to serve as a bumper which prevents the housing from coming too close to an obstruction such as a post or a tree. The frame also protects the wheels from such obstructions. The rear end of the housing is pivoted to the frame and the front end is attached to the frame by a height-adjustment linkage actuated by an adjusting screw which is locked in place whenever the height of the unit is proper for operation.