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:
Mar. 21, 1978
Filed:
Feb. 17, 1977
Jude A Pauli, Florissant, MO (US);
Emerson Electric Co., St. Louis, MO (US);
Abstract
A double ported valve has structural features including an integral valve body construction which provides more consistent valve performance, longer valve life, and improved operating characteristics. The integral valve body eliminates the need for external sealing gaskets. Consequently, a consistent valve stroke can be maintained, thereby reducing variations in valve capacity in applicational use. The construction also permits the various valve components to be tested prior to final assembly. Compensation for variations discovered during test is accomplished by providing an external adjustment means in the valve. The adjustment means is positioned downstream of the outlet side of the valve so that short stroke valve operation is possible, with consequent reduction in the amount of valve packing required to seal a stem of the valve against leakage.