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:
Aug. 23, 1977
Filed:
May. 03, 1976
Michael Derek Cunnell, Salisbury, EN;
Lucas Electrical Limited, Birmingham, EN;
Abstract
A fluid pressure transducer includes a hollow body divided into first and second compartments which are sealed from one another, the first compartment being connected, in use, to a first source of fluid at a pressure to be monitored, while the second compartment is connected to a reference source. The compartments include a common wall which is deformable in response to variations in the pressure of the first fluid source as compared to that of the reference source, and received within the body are a carrier and a first abutment member which are capable of relative movement towards and away from one another in resonse to deformation of the common wall. A plurality of further abutment members are resiliently supported by the carrier and arranged so as to become engaged with or disengaged from respective portions of the first abutment member at different positions of the first abutment member relative to the carrier. Thus in use the number of said further members engaging said first member varies in accordance with variations in the pressure of the first fluid source as compared to that of the reference source, means therefore being provided for producing an output dependent upon the number of said further members engaging the first member.