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:
Nov. 25, 2003
Filed:
Jan. 28, 2002
Applicant:
Inventor:
Steven A. Burke, Champlin, MN (US);
Assignee:
National Mower Cormpany, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01D 3/403 ; A01D 3/443 ; A01D 3/464 ;
U.S. Cl.
CPC ...
A01D 3/403 ; A01D 3/443 ; A01D 3/464 ;
Abstract
A height adjustment apparatus having a frame bracket attached to the frame with no relative movement therebetween, and a threaded rod threaded through the frame bracket. A nut is rigidly attached to a top end of the threaded rod. A swivel head is rotationally attached to the lower end of the rod, with the swivel head being attached to a ground contacting support. The apparatus further includes a socket configured to slidably receive the nut and the frame bracket. A spring is provided for slidably biasing the socket into a non-rotational aspect relative to the frame bracket.