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:
Feb. 02, 1982
Filed:
May. 16, 1980
Applicant:
Inventor:
Martin Maier, Gottmadingen, DE;
Assignee:
Klockner-Humboldt-Deutz AG Zweigniederlassung Fahr, Gottmadingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01D / ; A01D / ;
U.S. Cl.
CPC ...
56295 ;
Abstract
A rotary mower has a cutting plate to which freely pivotal blades are attached by retaining pins. Instead of riveting the pins directly to a leaf spring which holds the pins in place, a keyhole slot is provided in each leaf spring and a narrow waist of the retaining pin fits into rectilinear portion of the keyhole slot and is held in position there by a holding plate riveted to the leaf spring. This allows case hardening of the entire retaining pin and prevents nonuniform stresses in the latter from causing breakage.