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:
Mar. 06, 1984
Filed:
Oct. 17, 1977
Applicant:
Inventor:
John W Meulendyk, Kalamazoo, MI (US);
Assignee:
Pneumo Corporation, Boston, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ;
U.S. Cl.
CPC ...
417364 ; 417487 ;
Abstract
A free piston engine pump which utilizes plural hydraulic piston areas or hydraulic pressures, with suitable valving to properly 'phase' these areas or pressures during the engine stroke, to generate plural hydraulic work rates in order to smooth out the energy or work rate of the free piston engine and minimize the inertia-storage of energy required.