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. 23, 2007
Filed:
Apr. 10, 2003
Applicants:
Eric A. Niemi, West Allis, WI (US);
Michael W. Schmitt, Allenton, WI (US);
Inventors:
Eric A. Niemi, West Allis, WI (US);
Michael W. Schmitt, Allenton, WI (US);
Assignee:
M-B-W Inc., Slinger, WI (US);
Primary Examiner:
Int. Cl.
CPC ...
E01C 19/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
An easily accessible phase adjustment mechanism for a vibratory plate compactor includes an improved seal arrangement to protect against leakage of internal lubricating oil into the hydraulic cylinder providing fluid pressure to the adjustment mechanism. An easily demountable cylinder housing provides ready access to the piston and seal assembly which can then be threadably detached and replaced in its entirety.