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:
Jan. 29, 1980
Filed:
Feb. 07, 1978
Applicant:
Inventors:
Charles J Mize, Spirit Lake, IA (US);
James T Rumbaugh, Spirit Lake, IA (US);
Assignee:
Berkley & Company, Inc., Spirit Lake, IA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A01D / ; D02G / ;
U.S. Cl.
CPC ...
428399 ; 30276 ; 56 127 ; 56295 ; 428397 ; 428400 ;
Abstract
An improved filament for use in the cutting of weeds and vegetation, wherein the filament is attached at one end to a hub for imparting rotary motion to the filament. The centrifugal force extends the filament radially outwardly from the hub, with the energy of rotation being utilized to sever or cut the vegetation. The filament has a generally centrally disposed axis with an irregular or variant cross-section which fluctuates along the axial length of the filament. The variant cross-section with its fluctuations in cross-sectional area reduce the end or terminal fibrillation of the filament.