Patents Assigned to Steven G. Leiserson
  • Plug-in rechargeable battery unit
    Patent number: 5426358
    Abstract: A rechargeable power pack is shaped and dimensioned to be inserted in the battery compartment of an electrical device. The top of the power pack is exactly symmetrical with the battery compartment cover which it replaces. The power pack houses rechargeable power cells, and has a peripheral wall spaced apart from the sides of the battery compartment mounting the battery contact terminal. Flexible prongs project from the peripheral walls to provide a wiping contact with either a spiral spring negative terminal or a stationary positive terminal of the compartment. A top mounted connector allows recharging of the power pack even while in use on the electrical device. Baffles mounted astride each flexible prong avert damage to the prong during insertion of the power pack into the battery compartment.
    Type: Grant
    Filed: August 26, 1993
    Date of Patent: June 20, 1995
    Assignee: Steven G. Leiserson
    Inventors: Steven G. Leiserson, Richard L. Groendyke
  • Plug-in rechargeable battery unit
    Patent number: 5260636
    Abstract: A rechargeable power pack is shaped and dimensioned to be inserted in the battery compartment of an electrical device. The top of the power pack is exactly symmetrical with the battery compartment cover which it replaces. The power pack houses rechargeable power cells, and has a peripheral wall spaced apart from the sides of the battery compartment mounting the battery contact terminal. Flexible prongs project from the peripheral walls to provide a wiping contact with either a spiral spring negative terminal or a stationary positive terminal of the compartment. A top mounted connector allows recharging of the power pack even while in use on the electrical device. Baffles mounted astride each flexible prong avert damage to the prong during insertion of the power pack into the battery compartment.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: November 9, 1993
    Assignee: Steven G. Leiserson
    Inventors: Steven G. Leiserson, Richard L. Groendyke
  • Paint bucket holster
    Patent number: D338561
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: August 24, 1993
    Assignee: Steven G. Leiserson
    Inventors: Steven G. Leiserson, Peter W. Hardy
  • Rechargeable battery pack
    Patent number: D344260
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: February 15, 1994
    Assignee: Steven G. Leiserson
    Inventors: Steven G. Leiserson, Helmut Ochner