Patents by Inventor Andrew J. Holst

Andrew J. Holst 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).

  • Patent number: 10815746
    Abstract: A connector (12) such as a multi-coupler stabplate for coupling to or decoupling from another connector (14). The connector may have a secondary release mechanism (80) that allows a seized drive to be rotated to an unlocked position independent of the connector housing moving relative to a multi-coupler plate. Integrated stop features may be provided during such secondary release. The secondary release mechanism may be mounted to the housing (56) and retained with shear pins. Orientation pin(s) (62) may be provided that cooperate with a guide slot(s) (64) for oblique and axial movement of a locking mechanism (46) during coupling/decoupling. A housing shroud (76) may be provided for cooperating with the orientation pin(s) and indicating locked/unlocked states. A stop collar (70) and push-off flange (74) may be provided for facilitating coupling/decoupling. Guide bushings (44) may be provided for facilitating alignment during coupling.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: October 27, 2020
    Assignee: Parker-Hannifin Corporation
    Inventors: Andrew J. Holst, Leonard Nick
  • Publication number: 20190249508
    Abstract: A connector (12) such as a multi-coupler stabplate for coupling to or decoupling from another connector (14). The connector may have a secondary release mechanism (80) that allows a seized drive to be rotated to an unlocked position independent of the connector housing moving relative to a multi-coupler plate. Integrated stop features may be provided during such secondary release. The secondary release mechanism may be mounted to the housing (56) and retained with shear pins. Orientation pin(s) (62) may be provided that cooperate with a guide slot(s) (64) for oblique and axial movement of a locking mechanism (46) during coupling/decoupling. A housing shroud (76) may be provided for cooperating with the orientation pin(s) and indicating locked/unlocked states. A stop collar (70) and push-off flange (74) may be provided for facilitating coupling/decoupling. Guide bushings (44) may be provided for facilitating alignment during coupling.
    Type: Application
    Filed: October 25, 2017
    Publication date: August 15, 2019
    Inventors: Andrew J. Holst, Leonard Nick
  • Patent number: 9810360
    Abstract: A coaxial coupling 10 includes a female coupling half 50 and a male coupling half 130. The coupling 10 is used in a hydraulic circuit 100 that includes a multistage hydraulic pump 101 and a hydraulic machine 102. The coupling is used in the circuit 100 to connect components when the pump is running. The coupling halves have a disconnected configuration (FIG. 1), a connection initiation configuration (FIG. 2), and a fully connected configuration (FIG. 3). Coupling half 50 includes a manually actuated restrictor 1 that signals the pump 101 to move to a low flow condition independently of load demand from the machine 102 in the connection initiation configuration. This reduces the forces required to move the coupling halves from the connection initiation configuration to the fully connected configuration.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: November 7, 2017
    Assignee: Parker-Hannifin Corporation
    Inventors: Paul E. Lemay, Timothy T. Marquis, Michael R. Gose, Andrew J. Holst
  • Publication number: 20150233511
    Abstract: A coaxial coupling 10 includes a female coupling half 50 and a male coupling half 130. The coupling 10 is used in a hydraulic circuit 100 that includes a multistage hydraulic pump 101 and a hydraulic machine 102. The coupling is used in the circuit 100 to connect components when the pump is running. The coupling halves have a disconnected configuration (FIG. 1), a connection initiation configuration (FIG. 2), and a fully connected configuration (FIG. 3). Coupling half 50 includes a manually actuated restrictor 1 that signals the pump 101 to move to a low flow condition independently of load demand from the machine 102 in the connection initiation configuration. This reduces the forces required to move the coupling halves from the connection initiation configuration to the fully connected configuration.
    Type: Application
    Filed: March 8, 2013
    Publication date: August 20, 2015
    Inventors: Paul E. Lemay, Timothy T. Marquis, Michael R. Gose, Andrew J. Holst