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:
Sep. 12, 2023
Filed:
Sep. 30, 2020
Applicant:
Danfoss A/s, Nordborg, DK;
Inventors:
Stig Kildegaard Andersen, Krusaa, DK;
Frank Holm Iversen, Padborg, DK;
Sveinn Porarinsson, Reykjavik, IS;
Assignee:
Danfoss A/S, Nordborg, DK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 1/124 (2020.01); F04B 1/2078 (2020.01);
U.S. Cl.
CPC ...
F04B 1/124 (2013.01); F04B 1/2078 (2013.01);
Abstract
A piston () of a hydraulic piston machine is described, the piston () having a hollow () surrounded by a wall () and an insert () arranged in the hollow (). Such a piston is used to have a piston machine with high efficiency at low costs. To this end at least two pliable rings () are arranged between the insert () and the wall ().