Patents by Inventor Michael J. Plank

Michael J. Plank 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: 10919735
    Abstract: A lifting mechanism assembly comprising a lifting section, a compression section, and an attaching section.
    Type: Grant
    Filed: March 14, 2019
    Date of Patent: February 16, 2021
    Assignee: Speed Shore Corporation
    Inventors: Michael J. Plank, Robert Lolley
  • Publication number: 20190284025
    Abstract: A lifting mechanism assembly comprising a lifting section, a compression section, and an attaching section.
    Type: Application
    Filed: March 14, 2019
    Publication date: September 19, 2019
    Applicant: Speed Shore Corporation
    Inventors: Michael J. Plank, Robert Lolley
  • Patent number: 5868060
    Abstract: A quick-release cam lock for selectively locking the relative position of a hydraulic cylinder and a piston. The quick-release cam lock permits speedy unlocking and repositioning of the hydraulic cylinder and its accompanying piston and oversleeve, thus allowing for speed in repositioning, assembly or disassembly while also providing a secure positive positioning lock between the hydraulic cylinder, piston and oversleeve while the quick-release cam lock is engaged.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: February 9, 1999
    Assignee: Speed Shore Corp.
    Inventors: Michael J. Plank, Victor M. Cerda, Fred B. Plummer
  • Patent number: 5513555
    Abstract: A quick-release cam lock for selectively locking the relative position of a hydraulic cylinder and a piston. The quick-release cam lock permits speedy unlocking and repositioning of the hydraulic cylinder and its accompanying piston, thus allowing for speed in repositioning, assembly or disassembly while also providing a secure positive positioning lock between the hydraulic cylinder and the piston while the quick-release cam lock is engaged. A locking pin selectively locks the cam lock in an opened position.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: May 7, 1996
    Assignee: Michael J. Plank
    Inventors: Michael J. Plank, Victor M. Cerda, Fred B. Plummer
  • Patent number: 5209606
    Abstract: The present invention comprises a lightweight, portable, adjustable, reusable, preassembled, hydraulic expandable shoring shield for providing safety to personnel working in below-grade excavations. The Shoring shield comprises specially designed solid aluminum extruded sheeting sections forming the walls, each mounted with a top cap and lower skid, the walls are provided with a static expandable telescoping structural framework for holding the walls opposed, and also are provided with hydraulic cylinders for expanding the space enclosed between the walls, the framework and cylinders thus cooperate in combination with an armored manifold for routing fluid to the cylinders.
    Type: Grant
    Filed: January 3, 1992
    Date of Patent: May 11, 1993
    Assignee: Speed Shore Corp.
    Inventor: Michael J. Plank
  • Patent number: 5096334
    Abstract: The present invention comprises a lightweight, portable, adjustable, reusable, preassembled, hydraulic expandable shoring shield for providing safety to personnel working in below-grade excavations. The Shoring shield comprises specially designed solid aluminum extruded sheeting sections forming the walls, each mounted with a top cap and lower skid, the walls are provided with a static expandable telescoping structural framework for holding the walls opposed, and also are provided with hydraulic cylinders for expanding the space enclosed between the walls, the framework and cylinders thus cooperate in combination with an armored manifold for routing fluid to the cylinders.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: March 17, 1992
    Inventor: Michael J. Plank