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:
Oct. 26, 2010
Filed:
Mar. 13, 2006
Jacques Le Paih, Plumeliau, FR;
Jacques Le Paih, Plumeliau, FR;
Stork Food Systems France, Baud, FR;
Abstract
A rotary piston pump includes a stator defining a cylindrical cavity, a rotor or barrel housed in said cylindrical cavity, able to be driven in rotation by a motor. The rotor includes an array of bores spaced circumferentially wherein pistons are mounted. The pump has a mechanical cam cooperating with the pistons in order to provoke movement of said pistons between a low position and a high position, a lid closing the cylindrical cavity, a feeding orifice coming into communication with at least one cylindrical chamber, a hopper, a discharging orifice simultaneously in communication with at least two consecutive chambers, and vacuuming means for vacuuming cylindrical chambers for filling. The vacuuming means includes at least one vacuuming channel connecting to the lower part of each cylindrical chamber able to vacuum by the bottom each chamber by the vacuuming channel therewith when the piston associated therewith is in lower position.