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. 08, 1999
Filed:
Oct. 28, 1997
Walter J Ferguson, Waterbury, CT (US);
Dresser Industries, Inc., Dallas, TX (US);
Abstract
A vent plug assembly for relieving overpressure from within an instrument casing and comprising a body adapted for secured placement within an aperture defined in the exterior wall of the casing and having a thru-bore and a blind recess symetrically spaced apart and of like configuration and internal cross-sectional dimension. A cooperating plug having a top plate and a pair of dependent stubs of like cross-sectional configuration and spacing as the thru-bore and recess of said body is interchangeably insertable within the thru-bore and recess of the body with one of the stubs defining a blind upward recess and the other of said stubs defining a thru-bore. The plug is interchangeably displaceable manually such that when the respective thru-bore of the body and plug are interfitted, continuous venting occurs while when the blind recess stub of the plug is inserted in the thru-bore of the body, venting occurs only at a predetermined value of pressure build-up from within the casing sufficient to expel the assembly from the installed aperture of the casing.