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. 07, 1995
Filed:
Sep. 02, 1994
Applicant:
Inventor:
Richard G Powers, Overland Park, KS (US);
Assignee:
Marlen Research Corporation, Overland Park, KS (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; A22C / ;
U.S. Cl.
CPC ...
425145 ; 264 407 ; 4253823 ; 425447 ; 425D / ; 426512 ;
Abstract
A twin-piston food pump includes a hydraulic cylinder coupled with each piston for driving the pistons and a linear transducer coupled with each cylinder for determining the positions thereof. Control circuitry coupled with the transducers determines the velocity of the cylinders and thereby the pistons and controls the application of hydraulic fluid through the cylinders to maintain a constant food product flow rate.