Patents by Inventor Beat Frefel

Beat Frefel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Reciprocating piston compressor, a retrofit kit for a reciprocating piston compressor and the use of a connecting rod in a reciprocating piston compressor
    Patent number: 10590922
    Abstract: A reciprocating piston compressor (100) includes a crank casing (10). The reciprocating piston compressor (100) includes a crankshaft (11), a piston rod (12) and a crosshead (13). The crosshead (13) and the piston (23) are actively connected to one another by way of a connecting rod (24). The connecting rod (24) is fixedly restrained on the crosshead (13) and on the piston (23).
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: March 17, 2020
    Assignee: HAUG SAUER KOMPRESSOREN AG
    Inventor: Beat Frefel
  • A RECIPROCATING PISTON COMPRESSOR, A RETROFIT KIT FOR A RECIPROCATING PISTON COMPRESSOR AND THE USE OF A CONNECTING ROD IN A RECIPROCATING PISTON COMPRESSOR
    Publication number: 20180245574
    Abstract: A reciprocating piston compressor (100) includes a crank casing (10). The reciprocating piston compressor (100) includes a crankshaft (11), a piston rod (12) and a crosshead (13). The crosshead (13) and the piston (23) are actively connected to one another by way of a connecting rod (24). The connecting rod (24) is fixedly restrained on the crosshead (13) and on the piston (23).
    Type: Application
    Filed: August 20, 2015
    Publication date: August 30, 2018
    Inventor: Beat FREFEL
  • Piston compressor for compressing gaseous media in at least two working chambers
    Publication number: 20070116588
    Abstract: The invention relates to a piston compressor (15) which is used to compress gaseous media and which contains a differential piston (1) provided with a first piston part (16) and a second piston part (17) which are arranged on an axis. Two cylinders (7, 8) having internal holes with different diameters form two working chambers (21, 22). The cylinders are closed by plates (2, 9) comprising valve arrangements. The piston part (17) with the smaller diameter is guided through an opening (20) in the plate (2). The valves are more particularly lamella valves, reed valves or values with a spring return position.
    Type: Application
    Filed: December 9, 2004
    Publication date: May 24, 2007
    Applicant: FRITZ HAUG AG
    Inventor: Beat Frefel