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:
Feb. 12, 1980
Filed:
Jul. 07, 1978
James S Nevitt, Bellbrook, OH (US);
The Bendix Corporation, Southfield, MI (US);
Abstract
A back pressure fluid gaging circuit for measuring dimensions of a workpiece. The gaging circuit (100) includes gage tooling (190) including at least one fluid jet (192) disposed to be directed at a surface (210) of the workpiece (200), with variations in the distance between the surface (210) and the tooling (190) providing a varying back pressure of the fluid which is measured by a gage (150) located intermediate the length of a conduit (170) connecting a source (110) of fluid under pressure with the tooling (190). First and second adjustable (variable) fluid passage restrictions (130, 140) in the conduit (170, are adjusted to provide an output within a range that can be displayed by the gage (150) for the particular tooling selected. One of the adjustable restrictions (130) is located along the conduit between the source (110) of pressurized fluid and the gage (150) and the other restrictions (140) between the gage (150) and the tooling (190). The use of two adjustable passage restrictions allows the use of a constant (non-varying) fluid pressure source, supplied by a fixed fluid pressure regulator (120).