Patents by Inventor Dennis Kaufman

Dennis Kaufman 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).

  • Publication number: 20060067026
    Abstract: The stun gun of one embodiment includes: a first dart coupled to a tether and positioned to be propelled along a first trajectory, a second dart coupled to a tether and positioned to be propelled along a second trajectory divergent to the first trajectory, and a third dart coupled to a tether and positioned to be propelled along a third trajectory substantially parallel to the first trajectory. The stun gun also includes a power source having opposing charges and an activation circuit. The activation circuit is adapted to selectively connect one of the opposing charges to the first dart and connect the other of the opposing charges to the second and third darts.
    Type: Application
    Filed: September 30, 2004
    Publication date: March 30, 2006
    Inventor: Dennis Kaufman
  • Patent number: 6160231
    Abstract: A pivot switch assembly including a button and a housing. The housing includes a trunion and a retaining wall. The trunion opposes the retaining wall and forms a receiving gap between the two features. The button includes a rib. The rib has an aperture. The rib of the button being positioned into the receiving gap of the housing. The trunion of the housing then engages the aperture of the rib of the button so as to provide a pivoting function for the switch assembly. The geometry of the button and housing prevents the button from becoming dislodged during periods of high acceleration, such as during deployment of an airbag.
    Type: Grant
    Filed: December 3, 1999
    Date of Patent: December 12, 2000
    Assignee: Methode Electronics, Inc.
    Inventor: Dennis Kaufman
  • Patent number: 6122944
    Abstract: A key operated switch is provided for disabling an automobile air bag passive restraint system. The two or four position switch includes a housing, a rotor, a plurality of rotationally actuated electrical switch elements, a key ejecting mechanism, and a positive positioning detent. The switch assembly is arranged such that a transverse surface of the rotor defining a key slot is accessible through the housing. The key slot allows an operating key to be manually inserted into the rotor. In or order to insert the key, however, the therein, a certain minimum amount of force must be applied to the key sufficient to overcome the key ejecting mechanism. In the absence of such minimum insertion force, the key ejecting mechanism will act expel the key from the rotor. Once inserted into the rotor, the key may be manually rotated which causes corresponding rotation of the rotor.
    Type: Grant
    Filed: March 24, 1998
    Date of Patent: September 26, 2000
    Assignee: Methode Electronics, Inc.
    Inventors: Kannan Chandra, Dennis Kaufman, James Larsen, Rajkumar Ramamurthy
  • Patent number: 5967297
    Abstract: An elastomeric switch is provided having self cleanings contacts. The switch includes a substrate and a switch actuator configured for reciprocating motion along an axis generally perpendicular to a surface of the substrate. A first switch contact, including a contact surface generally perpendicular to the actuator axis of motion is, carried by the switch actuator. A second switch contact is cantilevered from the surface of the substrate. Reciprocation of the actuator in a first direction toward the substrate acts to force the first contact against the distal end of the second contact. The two contacts are deflected together as result of further reciprocation of the actuator in the first direction. As the contacts are deflected, the distal end of the second contact is scraped across the contact surface of the first contact, thereby removing contaminants and other debris from the contact surface of the first contact.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: October 19, 1999
    Assignee: Methode Electronics, Inc.
    Inventors: Dennis Kaufman, James Larsen, Christopher Edward Young, Jim Brian Hull