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:
Apr. 12, 1988
Filed:
Oct. 23, 1986
Paul Hammelmann, 4740 Oelde 1, DE;
Other;
Abstract
A high-pressure plunger pump which is designed for maximum pressures in the range between 1,000 and 4,000 bars includes a pump housing centered on an axis and including a main body having two axially spaced ends, and a pump head mounted on one of the ends of the main body. A plunger coaxially extends into the pump housing, and a sleeve is floatingly supported on the plunger. The sleeve has two end portions one of which is closer to the pump head than the other, converges toward the pump head and has an axial end face. Pressure and suction valves are coaxially arranged within the housing. The pump head includes a tube which forms a collecting container for a pressurized medium being pumped. This tube has a bore extending transversely of a longitudinal axis of the tube and around the axis of the housing and receiving a sleeve-shaped end portion of a pressure valve holder, and an external contact surface surrounding one end of the bore and engaging a corresponding sealing surface of the holder.