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. 18, 2014
Filed:
Oct. 19, 2005
Applicant:
Paul Bradford Blackwelder, Wadsworth, OH (US);
Inventor:
Paul Bradford Blackwelder, Wadsworth, OH (US);
Assignee:
The Will-Burt Company, Orville, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04H 12/34 (2006.01); E04H 12/18 (2006.01); F16C 19/54 (2006.01);
U.S. Cl.
CPC ...
F16C 19/54 (2013.01); E04H 12/182 (2013.01); F16C 2300/34 (2013.01);
Abstract
A rigid support bearing for a rotating shaft has bearings arranged concentrically around the shaft instead of spaced axially and is used in a screw drive telescoping mast assembly. An axial drive screw is centrally located in the mast assembly for extending and retracting the tubular sections. A lower bearing assembly supports the drive screw and uses the concentric bearing arrangement to reduce the nested height of the mast.