Patents Assigned to Grid Manufacturing Corporation
  • Hoisting and lowering device
    Patent number: 11891282
    Abstract: A device, system and method are used for hoisting and lowering a load. The device has a front plate that may be displaced to reveal a sheave. The device also has a friction accessory. The friction accessory is arranged to create friction between a rope and the device when a load is suspended from the device using the rope and where the device is secured to a support structure. The system may be prepared by an operator, having ascended to an elevated location, and further allows the operator to lower the load from the elevated location prior to descending.
    Type: Grant
    Filed: March 9, 2023
    Date of Patent: February 6, 2024
    Assignee: GRID MANUFACTURING CORPORATION
    Inventor: Mark Groves
  • Hoisting and lowering device
    Patent number: 11603296
    Abstract: A device, system and method are used for hoisting and lowering a load. The device has a front plate that may be displaced to reveal a sheave. The device also has a friction accessory. The friction accessory is arranged to create friction between a rope and the device when a load is suspended from the device using the rope and where the device is secured to a support structure. The system may be prepared by an operator, having ascended to an elevated location, and further allows the operator to lower the load from the elevated location prior to descending.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: March 14, 2023
    Assignee: GRID MANUFACTURING CORPORATION
    Inventor: Mark Groves
  • Hoisting and lowering device
    Patent number: 10737919
    Abstract: A device, system and method are used for hoisting and lowering a load. The device has a front plate that may be displaced to reveal a sheave. The device also has a friction accessory. The friction accessory is arranged to create friction between a rope and the device when a load is suspended from the device using the rope and where the device is secured to a support structure. The system may be prepared by an operator, having ascended to an elevated location, and further allows the operator to lower the load from the elevated location prior to descending.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: August 11, 2020
    Assignee: Grid Manufacturing Corporation
    Inventor: Mark Groves
  • Hoisting and lowering device
    Patent number: 9975744
    Abstract: A device, system and method are used for hoisting and lowering a load. The device has a front plate that may be displaced to reveal a sheave. The device also has a friction accessory. The friction accessory is arranged to create friction between a rope and the device when a load is suspended from the device using the rope and where the device is secured to a support structure. The system may be prepared by an operator, having ascended to an elevated location, and further allows the operator to lower the load from the elevated location prior to descending.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: May 22, 2018
    Assignee: Grid Manufacturing Corporation
    Inventor: Mark Groves