Patents by Inventor Peter Gerold

Peter Gerold 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: 20230414048
    Abstract: Suction-extraction device for a demolition hammer, wherein the demolition hammer has a housing and a tool fitting for receiving a demolition chisel, wherein the suction-extraction device has a flexible suction hose on whose free end there is connected a suction body via which dust is to be sucked up from a working region of the demolition chisel, wherein the suction-extraction device has a fastening element by which the suction hose can be mounted on the housing of the demolition hammer at a fastening point of the suction hose that is spaced apart from the free end, with the result that, during suction operation, the suction body can be freely pivoted with respect to the demolition chisel, at least in the radial direction.
    Type: Application
    Filed: November 9, 2021
    Publication date: December 28, 2023
    Inventor: Peter GEROLD
  • Patent number: 11673246
    Abstract: A flat chisel (1) having a longitudinal axis (7), a shank (2) and a blade-shaped working section (5). The shank (2) has a striking surface (4) perpendicular to the longitudinal axis (7). The working section (5) has a cutting edge (3) that is crosswise to the longitudinal axis (7). The cutting edge (3) is configured so as to be saddle-shaped.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: June 13, 2023
    Assignee: Hilti Aktiengesellschaft
    Inventor: Peter Gerold
  • Publication number: 20210362316
    Abstract: A tool receptacle for a hand-held power tool, in particular for a demolition hammer or chisel hammer, includes—a receptacle element for receiving a tool, and a locking element which for locking the tool in the tool receptacle is mounted so as to be eccentric and rotatable on the receptacle element, wherein the locking element with the aid of rotating the latter about the receptacle element is capable of being moved from an unlocked state in which the tool is retrievable from the receptacle element to a locked state in which the locking element encompasses the tool in a form-fitting manner, and vice versa.
    Type: Application
    Filed: July 12, 2019
    Publication date: November 25, 2021
    Inventors: Michael SCHAMBERGER, Peter GEROLD
  • Publication number: 20190184539
    Abstract: A flat chisel (1) having a longitudinal axis (7), a shank (2) and a blade-shaped working section (5). The shank (2) has a striking surface (4) perpendicular to the longitudinal axis (7). The working section (5) has a cutting edge (3) that is crosswise to the longitudinal axis (7). The cutting edge (3) is configured so as to be saddle-shaped.
    Type: Application
    Filed: July 31, 2017
    Publication date: June 20, 2019
    Inventor: Peter GEROLD
  • Patent number: 6725944
    Abstract: A combined electrical hand tool having an operating mode selection switch (1) with additional special functions that can be switched using a displaceable linkage (5) that can be displaced by the operating mode selection switch arranged between a lubricated assembly (2a) having a coupling (3a) and the external housing (4), wherein in at least two separate lubricant-tight assemblies (2a, 2b) at least one switchable coupling (3a, 3b) is present, which can be moved over an outwardly extending actuator (6a, 6b) that is mounted lubricant-tight.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: April 27, 2004
    Assignee: Hilti Aktiengesellschaft
    Inventors: Helmut Burger, Wolfgang Schreiber, Jochen Erhardt, Peter Gerold
  • Publication number: 20030226673
    Abstract: A combined electrical hand tool having an operating mode selection switch (1) with additional special functions that can be switched using a displaceable linkage (5) that can be displaced by the operating mode selection switch arranged between a lubricated assembly (2a) having a coupling (3a) and the external housing (4), wherein in at least two separate lubricant-tight assemblies (2a, 2b) at least one switchable coupling (3a, 3b) is present, which can be moved over an outwardly extending actuating means (6a, 6b) that is mounted lubricant-tight.
    Type: Application
    Filed: June 3, 2003
    Publication date: December 11, 2003
    Inventors: Helmut Burger, Wolfgang Schreiber, Jochen Erhardt, Peter Gerold
  • Patent number: 6638329
    Abstract: A filter for filtering dust-containing air including a filter insert (2) and a cleaning device (3) having a contact element (6) mechanically contacting the filter insert along an end edge (4a/4b) of a folded dust filter element (5) forming part of the filter insert.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: October 28, 2003
    Assignee: Hilti Aktiengesellschaft
    Inventor: Peter Gerold
  • Patent number: 6578644
    Abstract: A percussion rotary hand-held power tool including a percussion piston (3), an anvil (5), a chuck (4) for receiving a working tool, an axially displaceable and rotatable guide tube (6) located in the housing (2) and extending in a telescopic-like manner over the chuck (4) and the anvil (5) from a chuck region up to a region of the percussion piston (3), and a sealing element (8) located between the guide tube (6) and the housing (2) and having at least one axial seal (9) for performing only axial movement and at least one rotary shaft seal (10) for performing only rotary movement.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: June 17, 2003
    Assignee: Hilti Aktiengesellschaft
    Inventors: Jens Frenzel, Hans-Werner Bongers-Ambrosius, Peter Gerold
  • Publication number: 20020070036
    Abstract: A percussion rotary hand-held power tool including a percussion piston (3), an anvil (5), a chuck (4) for receiving a working tool, an axially displaceable and rotatable guide tube (6) located in the housing (2) and extending in a telescopic-like manner over the chuck (4) and the anvil (5) from a chuck region up to a region of the percussion piston (3), and a sealing element (8) located between the guide tube (6) and the housing (2) and having at least one axial seal (9) for performing only axial movement and at least one rotary shaft seal (10) for performing only rotary movement.
    Type: Application
    Filed: December 7, 2001
    Publication date: June 13, 2002
    Inventors: Jens Frenzel, Hans-Werner Bongers-Ambrosius, Peter Gerold
  • Publication number: 20020050365
    Abstract: An electrical hand held tool including a percussion mechanism (2) with a striker (3) having a striking region (6), a chuck (4) for receiving a working tool (7); and an annular channel (8) provided in the striking region (6) of the striker (3); and having at least one side opening (9) communicating with the underpressure-producing ventilation system (5) of the electromotor of the hand-held tool.
    Type: Application
    Filed: June 25, 2001
    Publication date: May 2, 2002
    Inventors: Hans-Werner Bongers-Ambrosius, Peter Gerold
  • Publication number: 20020005032
    Abstract: A filter for filtering dust-containing air including a filter insert (2) and a cleaning device (3) having a contact element (6) mechanically contacting the filter insert along an end edge (4a/4b) of a folded dust filter element (5) forming part of the filter insert.
    Type: Application
    Filed: July 5, 2001
    Publication date: January 17, 2002
    Inventor: Peter Gerold
  • Patent number: 6078238
    Abstract: A bolt to be screwed-in into a lubricant-containing housing, including a magnet (4), a head portion (2) having rotation-transmitting surfaces, and a shank portion (3) extending from the head portion (2) and having an outer thread (31) and a recess (32) provided at a free end of the shank portion (3) for form-lockingly receiving the magnet (4) and having a depth (T) measured from the free end of the shank portion (3) and substantially corresponding to an axial width of the magnet (4).
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: June 20, 2000
    Assignee: Hilti Aktiengesellschaft
    Inventor: Peter Gerold
  • Patent number: 5996708
    Abstract: A percussion tool, such as a drill or a chisel tool, including a percussion mechanism (7), a tool chuck (1), and a damping member (8) arranged between the tool chuck (1) and the percussion mechanism (7) for damping rebounds of a header (9) axially displaceable in the tool chuck (1), with the damping member (8) having, arranged one after another in the operational direction, a stop disc (86), an elastic ring (83), and a transmission element (81) having a cavity for receiving both the stop disc (86) an the elastic ring (86).
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: December 7, 1999
    Assignee: Hilti Aktiengesellschaft
    Inventor: Peter Gerold
  • Patent number: D972907
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: December 20, 2022
    Inventors: Tobias Königer, Peter Gerold, Steffen Geiger