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:
Jan. 04, 1994
Filed:
Mar. 17, 1992
Harold D Brown, Nickerson, KS (US);
Other;
Abstract
An improved linear fluid motor system, which is adapted to be driven by pressurized hydraulic fluid from a hydraulic pump, includes a piston rod having a first head interacting with product fluid and a second head interacting with hydraulic fluid, a first spool valve and a second spool valve interacting with the second piston head to control a third spool valve which reverses the displacement of the piston rod at its limits of travel, a first accumulator, and a second accumulator for cushioning abrupt pressure changes in the hydraulic fluid, a heater for heating the hydraulic fluid, a control valve for controlling the product fluid pumping rate of the system, interconnections for connecting the various components of the system, stops for defining the various configurations of the system, a detent mechanism for restraining the third spool valve in its switching configurations, and a coaxial conduit for conveying the hydraulic fluid between the hydraulic pump and the system whereby the product fluid is pumped from an input port to an output port. A modified embodiment includes integrally formed interconnections.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile