Patents Assigned to K-Jack Engineering Co., Inc.
  • Patent number: 4718532
    Abstract: An improved vending machine having an enclosure for storage of articles and an access door is provided with an arm affixed to the door and which has a free end, with a hydraulic door closer connected between the free end and the machine. A stop element is affixed to the machine enclosure and projects into the door opening of the access door for stopping movement of the arm thereby to limit the opening movement of the door and thus prevent application of excessive force to the hydraulic door closer. The vending machine also includes a latch hook releasably engageable with the stop element for restraining the door in an open position against return to a closed position.
    Type: Grant
    Filed: December 19, 1985
    Date of Patent: January 12, 1988
    Assignee: K-Jack Engineering Co., Inc.
    Inventor: Jack S. Chalabian
  • Patent number: D286061
    Type: Grant
    Filed: March 7, 1984
    Date of Patent: October 7, 1986
    Assignee: K-Jack Engineering Co., Inc.
    Inventor: Jack S. Chalabian
  • Patent number: D287030
    Type: Grant
    Filed: December 19, 1983
    Date of Patent: December 2, 1986
    Assignee: K-Jack Engineering Co., Inc.
    Inventor: Jack S. Chalabian
  • Patent number: D289664
    Type: Grant
    Filed: March 7, 1984
    Date of Patent: May 5, 1987
    Assignee: K-Jack Engineering Co., Inc.
    Inventor: Jack S. Chalabian
  • Patent number: D293592
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: January 5, 1988
    Assignee: K-Jack Engineering Co., Inc.
    Inventor: Jack S. Chalabian
  • Patent number: D297650
    Type: Grant
    Filed: March 18, 1985
    Date of Patent: September 13, 1988
    Assignee: K-Jack Engineering Co., Inc.
    Inventor: Jack S. Chalabian