Patents by Inventor Howard Dean Crumpler, JR.

Howard Dean Crumpler, JR. 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).

  • Mechanical scissor lift
    Patent number: 9617130
    Abstract: A scissor lift incorporating a trolley; lateral and oppositely lateral rollers; axles positioning the rollers at lateral and oppositely lateral sides of the trolley; torque cancelling “C” brackets mounted upon the trolley's lateral and oppositely lateral sides; a jack screw actuator connected operatively to the trolley for alternatively longitudinally and oppositely longitudinally moving the trolley; lateral and oppositely lateral roller tracks having longitudinal edges, each of the tracks supporting one of the rollers and each of the “C” brackets engaging one of the longitudinal edges; a scissor arm matrix having a lower longitudinal end connected to the trolley; a platform attached to the scissor arms' upper end; and a motor connected operatively to a chassis for longitudinally moving the jack screw actuator and for vertically moving the platform.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: April 11, 2017
    Inventor: Howard Dean Crumpler, Jr.
  • Mechanical Scissor Lift
    Publication number: 20160176688
    Abstract: A scissor lift incorporating a trolley; lateral and oppositely lateral rollers; axles positioning the rollers at lateral and oppositely lateral sides of the trolley; torque cancelling “C” brackets mounted upon the trolley's lateral and oppositely lateral sides; a jack screw actuator connected operatively to the trolley for alternatively longitudinally and oppositely longitudinally moving the trolley; lateral and oppositely lateral roller tracks having longitudinal edges, each of the tracks supporting one of the rollers and each of the “C” brackets engaging one of the longitudinal edges; a scissor arm matrix having a lower longitudinal end connected to the trolley; a platform attached to the scissor arms' upper end; and a motor connected operatively to a chassis for longitudinally moving the jack screw actuator and for vertically moving the platform.
    Type: Application
    Filed: February 5, 2016
    Publication date: June 23, 2016
    Applicant: HVAC - Jack, L.L.C.
    Inventor: Howard Dean Crumpler, JR.