Patents by Inventor Norman C. Haas

Norman C. Haas 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).

  • Patent number: 7786624
    Abstract: A power control device prevents unauthorized and unwanted use of electrical devices by locking the plug of the electrical device in the power control device, when the current flowing through the power control device is stopped. The device includes a switch, moveable between on and off conditions by moving a slide lock or bolt, typically by rotating a key in a locking structure. When the slide lock has moved into contact with the switch, such that it is in an off-condition and current is not flowing through the power control device, the slide lock has also locked the plug in the power control device. The electrical device is temporarily inoperable and can not resume normal operation until the power control device is unlocked.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: August 31, 2010
    Inventor: Norman C. Haas
  • Patent number: 7582990
    Abstract: A power control device prevents unauthorized and unwanted use of electrical devices by locking the plug of the electrical device in the power control device, when the current flowing through the power control device is stopped. The device includes a switch, moveable between on and off conditions by moving a slide lock or bolt, typically by rotating a key in a locking structure. When the slide lock has moved into contact with the switch, such that it is in an off-condition and current is not flowing through the power control device, the slide lock has also locked the plug in the power control device. The electrical device is temporarily inoperable and can not resume normal operation until the power control device is unlocked.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: September 1, 2009
    Inventor: Norman C. Haas
  • Publication number: 20090189462
    Abstract: A power control device prevents unauthorized and unwanted use of electrical devices by locking the plug of the electrical device in the power control device, when the current flowing through the power control device is stopped. The device includes a switch, moveable between on and off conditions by moving a slide lock or bolt, typically by rotating a key in a locking structure. When the slide lock has moved into contact with the switch, such that it is in an off-condition and current is not flowing through the power control device, the slide lock has also locked the plug in the power control device. The electrical device is temporarily inoperable and can not resume normal operation until the power control device is unlocked.
    Type: Application
    Filed: April 7, 2009
    Publication date: July 30, 2009
    Inventor: Norman C. Haas
  • Patent number: 6461176
    Abstract: A power control device has a first contact, a second contact, and a third contact aligned within slots of a housing. A cam having arms is aligned with a cylinder of a key lock assembly. The key lock assembly and cam are mounted in the housing. An electrical connector having electrical leads is mounted in an aperture within the housing so that the leads of the electrical connector are connected to the first contact and the third contact. The cylinder of the key lock assembly may be rotated, thereby rotating the cam. The arms of the cam cause locking pins on the first and second contacts to engage apertures of an electrical device plug plugged into the receptacle of the housing. Simultaneously, a lug on the cam operates on the third contact to force the third contact out of electrical connection with the second contact, thereby eliminating the current flow to the electrical device plug.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: October 8, 2002
    Inventor: Norman C. Haas
  • Patent number: 5338218
    Abstract: Electrical appliance current supply control apparatus in which there is positioned between an appliance plug with current pickup prongs and current input supply prongs a housing having electrical current carrying leads interconnecting the current input supply prongs and the current pickup prongs in which housing one of the electrical current carrying leads is led through a control in the housing which includes a key operated lock to either complete the current supply or to interrupt the current supply to the appliance pickup prongs through the one lead.
    Type: Grant
    Filed: March 16, 1993
    Date of Patent: August 16, 1994
    Inventor: Norman C. Haas
  • Patent number: 4580962
    Abstract: A multipart mold assembly for removably receiving a casing unit and positioning the casing so as to form, in combination with at least one of the mold parts, a cavity having the shape of an element to be formed in the mold and bonded to the casing. One mold part has a surface defining part of the shape of said cavity, and a casing skirt support surface forms another part of the cavity. A flash barrier is formed along a part of the skirt casing when a clamping ring formed from a plurality of individual clamping ring elements engages the surface of said casing skirt and urges it into fluid-tight relation with the casing support surface.
    Type: Grant
    Filed: June 20, 1984
    Date of Patent: April 8, 1986
    Assignee: Chicago Rawhide Mfg. Co.
    Inventor: Norman C. Haas
  • Patent number: 3993420
    Abstract: A mold assembly for injection molding of precision composite articles, which is particularly adapted for use in making highly precise oil seals having a rubber body bonded to a metal mounting flange.
    Type: Grant
    Filed: June 16, 1975
    Date of Patent: November 23, 1976
    Assignee: Chicago Rawhide Manufacturing Company
    Inventors: Norman C. Haas, Keith W. Christiansen