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. 16, 1999
Filed:
Oct. 14, 1997
Applicant:
Inventor:
Daniel R Wahlstrom, Vancouver, WA (US);
Assignee:
Columbia Machine, Inc., Vancouver, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C / ;
U.S. Cl.
CPC ...
74603 ; 74604 ; 7457 / ;
Abstract
An adjustable counterweight apparatus for use in vibratory machines, such as concrete molding machines, where a rotating shaft is engaged with a vibrating or oscillating load. The counterweight includes a first bore for receiving a rotating shaft, and a second bore for receiving a plug having a weight selected to dynamically balance the rotating shaft and oscillating load.