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:
Jul. 18, 2000
Filed:
Jan. 15, 1998
Applicant:
Inventor:
Masahiro Okesaku, Komatsu, JP;
Assignee:
Hokuriku Seikei Industrial Co., Ltd., Ishikawa-ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ; F16J / ;
U.S. Cl.
CPC ...
92129 ; 9216 / ; 417471 ;
Abstract
The straightness of the piston of a water jet loom plunger pump for discharging water under a high pressure is maintained to allow its smooth movement with respect to the cylinder. For this, a roller guide is arranged at a reciprocal piston actuating mechanism unit. By forming a bent tube at a water discharging passage from the cylinder to a conduit, moreover, the resistance to the water to be discharged from the cylinder is reduced. The piston is given a degree of freedom to move with respect to a drive member connected to a pump cam and a lever. This enables the piston to move with the least resistance in the cylinder.