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:
Jun. 24, 1986
Filed:
Nov. 29, 1984
John U Thompson, Tinley Park, IL (US);
David M Bergemann, Vernon Hills, IL (US);
Baxter Travenol Laboratories, Inc., Deerfield, IL (US);
Abstract
An occluder valve for closing off the flow of fluid in a flexible plastic tube includes a linearly movable pinch member coupled to a rotatable shaft through a nut. The shaft is coupled to an electric motor through an electrically energizable clutch. The output shaft of the motor is mechanically constrained to rotate in only one direction. The motor, coupled through the clutch, rotates the shaft causing the pinch member to move linearly away from the tubing. A torsion spring opposes this rotation. Once opened the valve will stay opened as long as the clutch is energized as the shaft of the motor will not rotate in a closing direction. To close the valve, the clutch is deenergized and the torsion spring moves the pinch member linearly against the flexible tubing closing it off.