Patents by Inventor Rainer Ontl

Rainer Ontl 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: 20070221392
    Abstract: An electrical hand-held power tool (2) includes a housing (4) in which a drive (6) is located, a ventilator (22) for forming a suction region (28) and a pressure region (30) in the housing (4) which provide for an air flow (L) that serves for cooling at least parts of the drive (6), and a separation element (26) arranged between the suction region (28) and the pressure region (30) and fixedly secured in the housing (4), the separation element (46) having an opening for forming a limited wire passage region (46) from the suction region (28) into the pressure region (30).
    Type: Application
    Filed: February 15, 2007
    Publication date: September 27, 2007
    Inventors: Rory Britz, Rainer Ontl, Thomas Hofbrucker
  • Patent number: 7229301
    Abstract: A motor-switch arrangement for a hand-held power tool includes a drive motor (12), an actuating switch (20) with a contact plug (24), and an adapter (44) arranged between the contact plug (24) and the drive motor (12) and having a plug connecter (46) cooperating with the counter-plug contact element (28) of the drive motor (12) for establishing a first electrical plug connection (30a) of the adapter (44), and a counter-plug connecter (48) electrically connected with the plug connecter (46) and cooperating with a plug contact element (26) of the contact plug (24) for establishing a second electrical plug connection (30b) of the adapter (44).
    Type: Grant
    Filed: March 15, 2006
    Date of Patent: June 12, 2007
    Assignee: Hilti Aktiengesellschaft
    Inventors: Rory Britz, Thomas Hofbrucker, Rainer Ontl, Valentin Keller
  • Patent number: 7141331
    Abstract: A battery pack includes a housing (3) having a plurality of cooling opening (2a, 2b) formed therein, and at least one separation wall (5) formed of a plurality of current cells (4) arranged flow-tight adjacent to each other, with the at least one separation wall (5) being arranged between at least two cooling openings (2a, 2b) and projecting flow-tight into an interior at the housing (3) at the side of the openings, so that the separation wall (5) is cooled by an air stream flowing therearound.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: November 28, 2006
    Assignee: Hilt Aktiengesellschaft
    Inventors: Bernd Ziegler, Rainer Ontl
  • Publication number: 20060237207
    Abstract: A motor-switch arrangement for a hand-held power tool includes a drive motor (12), an actuating switch (20) with a contact plug (24), and an adapter (44) arranged between the contact plug (24) and the drive motor (12) and having a plug connecter (46) cooperating with the counter-plug contact element (28) of the drive motor (12) for establishing a first electrical plug connection (30a) of the adapter (44), and a counter-plug connecter (48) electrically connected with the plug connecter (46) and cooperating with a plug contact element (26) of the contact plug (24) for establishing a second electrical plug connection (30b) of the adapter (44).
    Type: Application
    Filed: March 15, 2006
    Publication date: October 26, 2006
    Inventors: Rory Britz, Thomas Hofbrucker, Rainer Ontl, Valentin Keller
  • Patent number: 6967464
    Abstract: A charging station (1) for a rechargeable battery (5) that can be electrically and physically connected to the rechargeable battery (5). The charging station (1) has charger electronics (2) in a charger housing (3) and an electrical and physical contact interface (4) for the battery (5). An air blower (6) producing an air current (L) through two air vents (7a, 7b) is arranged in the charger housing (3). The air vent (7a) of the physical contact interface (4) is spatially associated with the battery (5) and the charger electronics (2) is arranged in the air current (L) to transfer heat. In the cooling process, in a first stage, an air volume (V) at cooling temperature CT is moved past the battery to transfer heat into and onto the battery and, in a second stage, the air volume (V) at an intermediate temperature IT>CT permeates the charger housing (2) containing the charging electronics (2.).
    Type: Grant
    Filed: July 9, 2003
    Date of Patent: November 22, 2005
    Assignee: Hilti Aktiengesellschaft
    Inventors: Bernd Heigl, Bernd Ziegler, Rainer Ontl
  • Patent number: 6965213
    Abstract: A battery pack (1) has a housing (2) with a floor part (5) and side walls (6.1, 6.2, 6.4; 8.1, 8.2, 8.4). The side wall (6.1, 8.1) has a recess (10.1, 11.1) oriented towards the inside of the housing. A plurality of cells arranged vertical to the floor part (5) are arranged in the housing (2). An actuation means (12.1) is provided in the recess (10.1, 11.1) for actuating the latching device and unlatching the detent element (13.1) from the receptacle of the electrical appliance. The actuation means (12.1) is guided on a guide means displaceable relative to the housing (2), and a translatory axis of the actuation means (12.1) is oriented vertical to the side wall (6.1, 8.1) and parallel to the floor part (5).
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: November 15, 2005
    Assignee: Hilti Aktiengesellschaft
    Inventors: Olaf Schadoffsky, Rainer Ontl
  • Publication number: 20050224242
    Abstract: A hammer drill (2) includes a clockwise and counterclockwise driven tool spindle (28), a drive pinion (70) operatively connectable with the tool spindle (28) for transmitting a torque thereto, a separate control handle (6) for selecting one of the hammer drill functions including a pure drilling operation, a pure percussion operation, and a rotary-percussion operation), and a switching device (8) which is adjustable in accordance with a position of the control handle (6) and which is shiftable by the control handle (6) in a clockwise rotation position for effecting a pure drilling operation in a clockwise direction and in a counterclockwise rotation position for effecting a pure drilling operation in a counterclockwise direction.
    Type: Application
    Filed: April 15, 2005
    Publication date: October 13, 2005
    Inventors: Rory Britz, Rainer Ontl
  • Patent number: 6775913
    Abstract: A battery (4) driven circular saw includes a housing (1a) with a motor (3) for driving the circular saw blade (2). The circular saw blade (2) is fixed to a drive shaft (7) that runs transverse to the plane (E) of the circular saw blade (2), the drive shaft being functionally connected by means of a linkage (15) to the motor (3). In order to achieve the most compact construction possible of the circular saw, the axis of rotation (R) of the motor (3) runs parallel to the plane (E) of the circular saw blade (2).
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: August 17, 2004
    Assignee: Hilti Aktiengesellschaft
    Inventors: Michael Fey, Günter Haas, Rainer Ontl
  • Publication number: 20040081885
    Abstract: A battery pack includes a housing (3) having a plurality of cooling opening (2a, 2b) formed therein, and at least one separation wall (5) formed of a plurality of current cells (4) arranged flow-tight adjacent to each other, with the at least one separation wall (5) being arranged between at least two cooling openings (2a, 2b) and projecting flow-tight into an interior at the housing (3) at the side of the openings, so that the separation wall (5) is cooled by an air stream flowing therearound.
    Type: Application
    Filed: October 15, 2003
    Publication date: April 29, 2004
    Inventors: Bernd Ziegler, Rainer Ontl
  • Publication number: 20040081882
    Abstract: An electrical tool system comprising a battery pack (2) having a battery voltage; a charging unit (3) having a charging voltage for charging the battery pack (2) and a hand-guided electrical tool (1), in particular a screwdriver, and having an attachment system (8) disposed on the housing (4) and on the battery pack (2) for detachable attachment of the battery pack (2) to the housing (4). The attachment system (8) on the housing (4) includes a receiving member (11) and an engaging member (12), on the battery pack (2), that can be brought into engagement with the receiving member (11). The engaging member and the receiving member each comprise a key device, which has a topography and a first blocking means, so that in the interlocked condition, the battery pack (2) and the electrical motor (6) cooperate, if the battery voltage is equal to or lower than the nominal voltage.
    Type: Application
    Filed: July 21, 2003
    Publication date: April 29, 2004
    Inventor: Rainer Ontl
  • Publication number: 20040070368
    Abstract: A charging station (1) for a rechargeable battery (5) that can be electrically and physically connected to the rechargeable battery (5). The charging station (1) has charger electronics (2) in a charger housing (3) and an electrical and physical contact interface (4) for the battery (5). An air blower (6) producing an air current (L) through two air vents (7a, 7b) is arranged in the charger housing (3). The air vent (7a) of the physical contact interface (4) is spatially associated with the battery (5) and the charger electronics (2) is heat-transfer arranged in the air current (L). In the cooling process, in a first stage, an air volume (V) at cooling temperature CT is moved past heat-transferringly into/onto the battery and, in a second stage, the air volume (V) at an intermediate temperature IT>CT permeates the charger housing (2) containing the charging electronics (2.).
    Type: Application
    Filed: July 9, 2003
    Publication date: April 15, 2004
    Inventors: Bernd Heigl, Bernd Ziegler, Rainer Ontl
  • Patent number: 6684509
    Abstract: A shaving apparatus includes a short-hair cutter unit and a long-hair cutter unit. The long-hair cutter unit includes an outer cutter with slits and segments and an inner cutter that is movable in a vertical direction by means of a carrier structure. The outer cutter has comb elements that are associated with the comb elements of a threader comb. The comb elements of the threader comb are movable jointly with the comb elements of the outer cutter in a vertical direction.
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: February 3, 2004
    Assignee: Braun GmbH
    Inventors: Bernhard Best, Ingeborg Gudat, Rainer Ontl, Matthias Wetzel
  • Publication number: 20030037445
    Abstract: A battery (4) driven circular saw includes a housing (1a) with a motor (3) for driving the circular saw blade (2). The circular saw blade (2) is fixed to a drive shaft (7) that runs transverse to the plane (E) of the circular saw blade (2), the drive shaft being functionally connected by means of a linkage (15) to the motor (3). In order to achieve the most compact construction possible of the circular saw, the axis of rotation (R) of the motor (3) runs parallel to the plane (E) of the circular saw blade (2).
    Type: Application
    Filed: August 19, 2002
    Publication date: February 27, 2003
    Inventors: Michael Fey, Gunter Haas, Rainer Ontl