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:
Nov. 25, 2003
Filed:
Jun. 07, 2000
Applicant:
Inventors:
John C. Hamma, Isle of Palms, SC (US);
Walter J. Ferguson, Waterbury, CT (US);
Jeffrey T. Blake, Milford, CT (US);
Michael J. Maloney, Cicero, NY (US);
Louis A. Rosen, Trumbull, CT (US);
Assignee:
Dresser, Inc., Addison, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L 7/04 ;
U.S. Cl.
CPC ...
G01L 7/04 ;
Abstract
Various embodiments are disclosed of dampening apparatus for a pressure gauge in which a short length of sleeve, ferrule, hub or thimble encircles a pointer shaft in a close but loose fit relation defining a clearances packed with a high viscosity dampening agent such that it serves to decelerate and cushion any sudden shock or pulsation force that would otherwise be transmitted from the pointer shaft to a pointer registering values of pressure of fluid pressure being monitored.