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:
Feb. 03, 1987
Filed:
Feb. 19, 1986
Applicant:
Inventor:
Lloyd B Smith, Bristol, TN (US);
Assignee:
United Coal Company, Bristol, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B04B / ;
U.S. Cl.
CPC ...
210144 ; 34 58 ; 2103601 ; 210363 ; 210376 ; 210378 ; 210379 ; 494 36 ; 494 82 ; 494 84 ;
Abstract
A batch-type centrifugal system utilizes a gimbal-like suspension at the end of a rotating shaft distal an attached bowl at the other end of the shaft. The shaft rotates within an elongated bearing which is supported proximal the bowl by a support which is selectively variable in resiliency. This variation in resiliency changes the natural radial frequency of the system whereby operation of the system at rotational speeds which correspond to the natural radial frequency may be minimized, thereby effecting smooth loading, drying, and unloading operations.