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. 06, 1989
Filed:
Jul. 29, 1987
Thomas P Ladisch, Alburtis, PA (US);
Other;
Abstract
A valve particularly adapted for use as a sterilizable drain valve to be mounted flush in the bottom of a tank, has a housing body running flush with the bottom of the tank and a piston-mounted diaphragm sealing an opening perpendicular to the tank walls. A steam inlet and first outlet, running perpendicular to the valve axis, communicate with a valve chamber through which the piston operator and diaphragm are movable. The diaphragm can be polyetheretherketone (PEEK), which is difficult to imprint, at least on a side facing the opening in the tank. A containment outlet disposed opposite the diaphragm from the inlet permits containment of tank contents in the event of diaphragm rupture. The containment outlet is connected to the area of the diaphragm adjacent the pump chamber along an axial slot in the operator piston. A handle threadably mounted on a bonnet of the valve housing is used for axially displacing the operator pistor toward and away from the inlet.