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:
May. 12, 1992
Filed:
Apr. 15, 1991
Yuzo Inukai, Shizuoka, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
Pulsations in a pressurized fluid flowing through a conduit pipe is prevented by changing the inner volume of the pipe by changing the cross-sectional area of a flexible pipe portion in dependence upon the pressure of the flowing fluid without changing the peripheral length of the cross-section of the pipe portion thereby absorbing any pressure changes. For this purpose the apparatus comprises a tube or a hollow substantially spherical body having flexibility in at least one cross-section thereof, and a member operating as an elastic body for resiliently regulating the cross-sectional area of the inner bore of the tube or the substantially spherical body to a cross-sectional area less than the maximum cross-sectional area thereof.