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. 07, 1982
Filed:
Jul. 25, 1980
Robert J Moore, Fontana, CA (US);
Emerson Electric Co., St. Louis, MI (US);
Abstract
An apparatus for cutting vegetation with a rotating head carrying a flexible, non-metallic cutting line extended radially into a cutting plane. An additional length of line is extended into the cutting plane automatically during rotation of the head as its speed increases from a first magnitude to a second magnitude. A laterally displaced cam within the head moves outwardly for releasing a spool carrying coiled cutting line to advance a first angular displacement within the head. The spool rotates a second angular displacement to return the cam to its original position by the drag of the cutting line during vegetation cutting but not by free air travel. After the cutting line length extension is completed, the spool is secured by the cam at its initial position automatically against further rotation within the head.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile