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:
Sep. 29, 1998
Filed:
Jun. 05, 1997
Applicant:
Inventors:
David Jeffrey Meester, Fresno, CA (US);
Franklin Paul Orlando, Morgan Hill, CA (US);
Assignee:
FMC Corporation, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A01D / ;
U.S. Cl.
CPC ...
460113 ; 460133 ; 460145 ; 563281 ; 563401 ;
Abstract
The invention provides a shaker with a set of primary eccentric weights and secondary eccentric weights. The invention rotates the primary and secondary eccentric weights at the same speed, but may on the fly change the rotational phase between the primary and secondary eccentric weights, causing an on the fly change of amplitude of the inventive shaker.