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:
Jun. 04, 1991
Filed:
Aug. 30, 1989
Joseph R Phillips, Glens Falls, NY (US);
John D Weston, Glens Falls, NY (US);
Michael D Meredith, Beaverton, OR (US);
Kamyr, Inc., Glens Falls, NY (US);
Abstract
A hydraulic accumulator prevents oil with gas entrained in it from exiting the accumulator. The accumulator comprises a completely static structure which provides laminar flow of oil from a gas pad to the accumulator outlet. The laminar flow is preferably provided by a plurality of tubes disposed between the gas pad and the outlet, each tube having a substantially greater length than the largest cross-sectional dimension. The tubes are preferably rigid and circular in cross-section, and the passageways defined between the tubes also have a substantially greater length than the largest cross-sectional dimension. The accumulator can either be a low pressure accumulator or a high pressure accumulator. With a high pressure accumulator it is desirable to provide a float switch or like sensor to ensure that the tubes within a tube bundle are always fully immersed in oil. The accumulator is particularly useful in association with an atmospheric or pressure diffuser for treating paper pulp, which includes one or more screens which are hydraulically reciprocated.