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:
Dec. 19, 2006
Filed:
Feb. 02, 2004
Donald Paul Pepperling, Marshalltown, IA (US);
Dennis Gene Sickels, Marshalltown, IA (US);
Richard J. Vanderah, Marshalltown, IA (US);
Donald Paul Pepperling, Marshalltown, IA (US);
Dennis Gene Sickels, Marshalltown, IA (US);
Richard J. Vanderah, Marshalltown, IA (US);
Fisher Controls International, LLC, St. Louis, MO (US);
Abstract
Methods and apparatus for sensing a gauge pressure use a pressure gauge pressure sensor that includes a housing and a gauge pressure sensing element having a first pressure inlet and a second pressure inlet. The first pressure inlet is associated with a pressure to be measured and the second pressure inlet is associated with an atmospheric pressure. A flame arrestor disposed within the sensor housing fluidly couples the second pressure inlet to an internal portion of an explosion proof device.