Patents Assigned to SPARROW PRODUCT DEVELOPMENT, INC.
  • Patent number: 10619630
    Abstract: A multi-port thumb pump cylinder is disclosed. The cylinder includes a body with a body central bore with a body bore longitudinal axis running along a portion of the length of the body and defining a proximal and distal end. The body central bore receives a thumb pump piston assembly through the proximal end. The body has a vacuum manifold connected to the distal end of the body central bore. The manifold includes a suction cup vacuum port and at least one vacuum port with a molded nipple, or a connection structure to allow fittings to be attached thereto. Also disclosed is a thumb pump using the cylinder and a thumb pump system with multiple thumb pumps utilizing the cylinder.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: April 14, 2020
    Assignee: SPARROW PRODUCT DEVELOPMENT, INC.
    Inventors: Larry Leigh Livingston, Jr., Derek Carlton Westlund
  • Patent number: 9651084
    Abstract: A suction cup apparatus is disclosed that includes a suction cup and a suction cup cover. The suction cup has an outer sealing edge and can be placed under vacuum. The cover has a solid suction cup cover surface and a suction cup cover wall extending away from this surface. The suction cup cover wall is constructed to circumscribe the outer sealing edge, and the suction cup cover wall and solid suction cup cover surface are constructed to elastically deform under a pulling force. The suction cup cover is further constructed to fit around the sealing edge when subjected to the pulling force and to form an airtight seal between the suction cup and suction cup cover when the pulling force is withdrawn.
    Type: Grant
    Filed: December 11, 2016
    Date of Patent: May 16, 2017
    Assignee: SPARROW PRODUCT DEVELOPMENT, INC.
    Inventors: Larry Leigh Livingston, Jr., Derek Carlton Westlund
  • Patent number: D893981
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: August 25, 2020
    Assignee: SPARROW PRODUCT DEVELOPMENT, INC.
    Inventors: Larry Leigh Livingston, Jr., Derek Carlton Westlund