Patents by Inventor Peter Hilfinger

Peter Hilfinger 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: 5545968
    Abstract: The invention is directed to a motor-powered appliance 10 for personal use as, for example, an appliance for oral or dental hygiene, a shaver or the like, with a housing 12 for accommodating the drive means 20 as well as at least one rechargeable energy-storage cell 18. The housing 12 is composed of at least two housing sections 13, 14 sealingly connectible with each other. The appliance 10 has an associated case structure 22 incorporating in particular means 24 for charging the energy-storage cells 18, or in particular means 26 for the storage of attachments for the appliance 10. The case structure 22 includes two abutment means which, in forming an integral part of the case structure 22, provide a tool for severing the housing sections 13, 14.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: August 13, 1996
    Assignee: Braun Aktiengesellschaft
    Inventors: Peter Hilfinger, Gerhard Kressner, Michael Sauer
  • Patent number: 5467495
    Abstract: The invention is directed to a brush for an electric toothbrush, comprising a cylindrical bristle supporting structure equipped with bristles arranged on several approximately concentric circular rings on the bristle supporting structure. A circular ring devoid of bristles is maintained between at least two adjacent bristled circular rings, with the average width of the bare circular ring corresponding approximately to the average width of a bristled circular ring. The brush is adapted to perform an oscillating movement vertically to the longitudinal axis of the toothbrush. As a special brush, it is particularly well suited to the cleaning of teeth of persons wearing orthodontic appliances.
    Type: Grant
    Filed: October 11, 1994
    Date of Patent: November 21, 1995
    Assignee: Braun Aktiengesellschaft
    Inventors: Bernhard Boland, Peter Hilfinger
  • Patent number: 5344317
    Abstract: The present invention is directed to an appliance for oral hygiene, in particular an oral irrigating apparatus 10, comprising a hand-held unit 12 and a base unit 14 interconnected by a fluid conducting hose 19 and electrical conductors 21, 23. By means of an operating means 33 arranged on the handle section 28 of the hand-held unit 12, two operating parameters, particularly the On/Off state and the jet pressure of the oral irrigating apparatus 10, can be varied.
    Type: Grant
    Filed: May 6, 1992
    Date of Patent: September 6, 1994
    Assignee: Braun Aktiengesellschaft
    Inventors: Lothar Pacher, Gustav Gassner, Gottfried Voigt, Peter Hilfinger
  • Patent number: 4726116
    Abstract: In a shaving head for dry shavers with a shaving head frame removably disposed on the shaver housing in an interchangeable frame insertable therein, in which a shaving foil cooperating with a reciprocating cutting head is convexly tensioned, the interchangeable frame is positively locked directly to the shaver housing.
    Type: Grant
    Filed: September 17, 1985
    Date of Patent: February 23, 1988
    Assignee: Braun Aktiengesellschaft
    Inventors: Otto Schweingruber, Peter Hilfinger, Dietrich Pahl
  • Patent number: 4628606
    Abstract: A trimmer for dry shavers having cutting screen mounted integral with the appliance and a cutter movable reciprocally along said cutting screen, formed of a cutter blade and a support. The support of the cutter is manufactured by the injection-molding technique and the cutter blade is injection-molded onto it when manufactured. Recesses of different shapes with central constrictions are provided in the cutter blade to receive the support material, said constrictions, despite the shrinkage of the support material, ensuring a secure zero-play material connection between the support and the cutter blade.
    Type: Grant
    Filed: July 29, 1985
    Date of Patent: December 16, 1986
    Assignee: Braun Aktiengesellschaft
    Inventor: Peter Hilfinger
  • Patent number: 4578861
    Abstract: In a shaving head for dry shavers with a shaving head frame removably disposed on the shaver housing an an interchangeable frame insertable therein, in which a shaving foil cooperating with a reciprocating cutting head is convexly tensioned, the interchangeable frame is positively locked directly to the shaver housing.
    Type: Grant
    Filed: December 30, 1983
    Date of Patent: April 1, 1986
    Assignee: Braun Aktiengesellschaft
    Inventors: Otto Schweingruber, Peter Hilfinger, Dietrich Pahl