Patents by Inventor Frank Rohlfs

Frank Rohlfs 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: 20230073611
    Abstract: The disclosure relates to a bit holder 1 for holding and driving a screw 3 with a screw head 4 into a fastening base, comprising a clamping region 2 for connecting the bit holder 1 to a driving tool and a bit receptacle 16 for inserting a bit suitable for driving the screw 3. The bit holder 1 has at least one magnet 7a-7f, 7.1a-7.1f arranged eccentrically relative to the bit holder 16 with one pole facing the screw head 4, wherein the magnet 7a-7f, 7.1a-7.1f is held floating on a magnet holder 8, 8.1 in relation to a bit 6 held in the bit receptacle 16, so that the pole face of the at least one magnet 7a-7f, 7.1a-7.1f can align according to the contour of the screw head 4 in order to hold the screw 3 on the bit holder 1 in such a way that the bit 6 engages torque-locked in a rotary driver contour 5 of the screw head 4.
    Type: Application
    Filed: September 6, 2022
    Publication date: March 9, 2023
    Inventors: Alexander HINGST, Frank ROHLFS
  • Patent number: 10857662
    Abstract: A hand-held tool comprises a tool part and a handle surrounding a section of the tool part and connected to same in a torque-transmitting manner. The tool part comprises a connection contour used to connect the handle in a torque-transmitting manner at least in some areas, in a section surrounded by the handle. The handle comprises an inner handle piece which can be connected to the connection contour and surrounds same in a torque-transmitting manner. With the inner handle piece slid onto the connection contour, one or more outwardly-open casting channels are provided between the two parts. The handle further comprises an outer handle piece made of plastic, which during the course of a plastic moulding process is moulded around the unit comprising the tool part which has an inner handle piece connected to the connection contour thereof, wherein the at least one casting channel is at least partially filled with the plastic material which forms the outer handle piece.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: December 8, 2020
    Assignee: KIRCHHOFF WITTE GMBH
    Inventor: Frank Rohlfs
  • Publication number: 20180290287
    Abstract: A hand-held tool comprises a tool part and a handle surrounding a section of the tool part and connected to same in a torque-transmitting manner. The tool part comprises a connection contour used to connect the handle in a torque-transmitting manner at least in some areas, in a section surrounded by the handle. The handle comprises an inner handle piece which can be connected to the connection contour and surrounds same in a torque-transmitting manner. With the inner handle piece slid onto the connection contour, one or more outwardly-open casting channels are provided between the two parts. The handle further comprises an outer handle piece made of plastic, which during the course of a plastic moulding process is moulded around the unit comprising the tool part which has an inner handle piece connected to the connection contour thereof, wherein the at least one casting channel is at least partially filled with the plastic material which forms the outer handle piece.
    Type: Application
    Filed: May 31, 2016
    Publication date: October 11, 2018
    Inventor: Frank Rohlfs
  • Patent number: 9598100
    Abstract: A device for connecting a steering column to a cross member positioned between two A-pillars. The device comprises a front connecting region, a cross member-accommodating region, and a rear connecting region. The device comprises at least one metal structure, which is designed as a bow or comprises at least one such bow, extending from the front connecting region to the rear connecting region. A base body supports the metal structure. The metal structure is substantially the main load path for introducing force into the cross member. The base body is connected to the metal structure in at least the front connecting region and rear connecting region, in the direction of the main load path.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: March 21, 2017
    Assignee: KIRCHHOFF AUTOMOTIVE DEUTSCHLAND GMBH
    Inventors: Christian Lenkenhoff, Rolf Schwarzer, Frank Rohlfs
  • Publication number: 20160059878
    Abstract: A device 1 for connecting a steering column to a crossmember 2 positioned between two A-pillars comprises a front connecting region 3, a crossmember-accommodating region 4, and a rear connecting region 5. The device 1 comprises at least one metal structure 8, which is designed as a bow or comprises at least one such bow and extends from the front to the rear connecting region 3, 5 and a base body 6 that supports the metal structure 8. The metal structure 8 substantially is the main load path for introducing force into the crossmember 2. The base body 6 is connected to the metal structure at least in the front and rear connecting region 3, 5 in the direction of the main load path.
    Type: Application
    Filed: June 13, 2014
    Publication date: March 3, 2016
    Inventors: Christian Lenkenhoff, Rolf Schwarzer, Frank Rohlfs