Patents by Inventor Dittmar Schwab

Dittmar Schwab 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: 6471262
    Abstract: The invention relates to a device for locking a part (3; 21; 31) that is to be secured, arranged so that it can move on a motor vehicle, a securing part (11; 26; 36) engaging in a slot-shaped cavity (7; 28; 38) of the part (3; 21; 31) that is to be secured under the effect of the acceleration forces that occur when the corresponding vehicle coincides with an obstacle. To allow the device to be fitted simply and in a non-bulky way and to reliably prevent unintentional opening of the door of the vehicle when acceleration forces from different directions are applied on the part that is to be secured, the invention proposes that the securing part (11; 26; 36) be controlled by a control element (10; 22; 32) of spherical shape, the control element (10; 22; 32) resting on a guide (8; 23; 33) via domed or conical control surfaces (9).
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: October 29, 2002
    Assignee: Valeo GmbH & Company Schliessysteme
    Inventor: Dittmar Schwab
  • Publication number: 20020104343
    Abstract: The invention relates to a closure mechanism (1) for a vehicle door, having disposed on the inner face of the vehicle door a mounting bracket (2) for the attachment of an external door handle (3) and of a locking cylinder (5) which is joined to an actuating lug (8) adapted to be swivelled against the pressure of a return spring (10).
    Type: Application
    Filed: September 18, 2001
    Publication date: August 8, 2002
    Inventors: Dittmar Schwab, Holger Schiffer
  • Publication number: 20010047673
    Abstract: The invention relates to a locking device having a barrel housing (2) which consists of a lower part (3) and a metallic upper part (4) and which surrounds a cylinder housing (5) which consists of metal and in which there is rotatably mounted a cylinder core (6) which can be locked to the cylinder housing (5) via tumblers (7).
    Type: Application
    Filed: April 5, 2001
    Publication date: December 6, 2001
    Inventor: Dittmar Schwab
  • Patent number: 6314775
    Abstract: A flat key having a grip element (2) and a key bit (3), the grip element (2) including a casing (4) and the key bit (3) being arranged in a manner enabling it to be moved into and out of the grip element casing (4) and to be fixed in its respective extreme position. In order to provide a flat key (1) with an axially displaceable key bit (3) which has an inexpensively manufactured drive and requires relatively small dimensions, a spring (7)—preferably a scroll spring—is disposed as the drive in the grip element casing (4), the two end zones (8, 9) of said spring each being wound spirally onto two holders (10, 11) arranged at the side of the key bit (3). The central zone (12) of the spring (7) rests against a support (13) on the end of the key bit (3) that is situated inside the grip element casing (4), with the usual result that when the key bit (3) is inserted into the grip element casing (4) the spring (7) becomes uncoiled from the holders (10, 11) and thus tensioned.
    Type: Grant
    Filed: December 6, 2000
    Date of Patent: November 13, 2001
    Assignee: Valeo GmbH & Co. Schliessysteme KG
    Inventor: Dittmar Schwab
  • Publication number: 20010002544
    Abstract: The invention relates to a flat key having a grip element (2) and a key bit (3), the grip element (2) including a casing (4) and the key bit (3) being arranged in a manner enabling it to be moved into and out of the grip element casing (4) and to be fixed in its respective extreme position. In order to provide a flat key (1) with an axially displaceable key bit (3) which has an inexpensively manufactured drive and requires relatively small dimensions, the invention proposes that a spring (7) —preferably a scroll spring—be disposed as the drive in the grip element casing (4), the two end zones (8, 9) of said spring each being wound spirally onto two holders (10, 11) arranged at the side of the key bit (3).
    Type: Application
    Filed: December 6, 2000
    Publication date: June 7, 2001
    Inventor: Dittmar Schwab
  • Patent number: 5913909
    Abstract: A device with a selection lever, which is pivoted about a rotational axis and arranged on a selection lever housing, for motor vehicle automatic transmissions, wherein a barring bolt connected with a lock cylinder is provided for the bolting mechanism of the selection lever. To keep the selection lever housing which rises into the vehicle's interior as small as possible, the barring bolt is disposed underneath the rotational axis of the selection lever. For the bolting mechanism of the selection lever, the barring bolt then engages a groove-shaped recess, of a pivoted catch lever arranged likewise underneath the rotational axis. The catch lever is fixed by the barring bolt and also fixes the selection lever in its bolted setting with a tang. For this, the selection lever is designed as a reversing lever, so that the tang of the catch lever engages the (second) lever part of the selection lever located underneath the rotational axis.
    Type: Grant
    Filed: June 24, 1997
    Date of Patent: June 22, 1999
    Assignee: Valeo GmbH & Co. Schliessysteme KG
    Inventor: Dittmar Schwab
  • Patent number: 5632516
    Abstract: A motor vehicle door handle (1) with a base body (2) and a handle flap (18) which in its starting position partially covers an external handle recess (17), with the handle flap (18) being connected to one lever end (21) of each of two swivelling levers (6) which are pivotally mounted in an interior (3) of the vehicle door. In order for the handle flap (18) to fold back easily into an actuating position which favors gripping in a second end position (pull-out position) when the door is opened without the danger of injury in the hand area of the individual opening the door, the handle flap (18) is connected to each of the swivelling levers (6) by a respective lever-shaped arm (20) which can preferably be swivelled, only after reaching the pull-out position, against the direction of rotation of the swivelling lever (6) into an actuating position which favors gripping. In this case the swivelling motion of an arm (20) is preferably caused or supported by a pre-stressed torsion spring (23).
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: May 27, 1997
    Assignee: YMOS Aktiengesellschaft Industrieprodukte
    Inventor: Dittmar Schwab
  • Patent number: 5189895
    Abstract: A cylinder lock, especially suitable for motor vehicle doors, has a locking cylinder and a key, whereby the locking cylinder includes at least one cylinder housing with at least one blocking channel and one cylinder core with tumblers, each of which is movable about its own axis. At least one protruding cam or a recess is provided on the key or on the tumblers for transmitting the linear key motion in the key channel into a motion of each tumbler about its own axis.
    Type: Grant
    Filed: November 2, 1990
    Date of Patent: March 2, 1993
    Assignee: Yoms Aktiengesellschaft Industrieprodukte
    Inventors: Dittmar Schwab, Dieter Knauer
  • Patent number: 4759203
    Abstract: A steering and ignition lock has a locking cylinder which is provided on its circumference with a control cam for cooperation with a control pin (16). A slide member is linearly displaceable if released by the control pin which may be moved into and out of the path of the slide member to lock the slide member or to release the slide member. The slide member is either connected, for example through a Bowden cable, to the transmission selector lever, or to a safety lever so that the operability of the steering and ignition depends on the prior operation of the gear shift lever or of the safety lever.
    Type: Grant
    Filed: July 26, 1988
    Date of Patent: July 26, 1988
    Assignee: Ymos Aktiengeselschaft Industrieprodukte
    Inventors: Kurt Lieb, Dittmar Schwab
  • Patent number: 4253320
    Abstract: The present magnetic lock is operated by a key including control magnets. For this purpose a locking bar is radially shiftable in a locking cylinder in a housing. Magnetic rotors release or lock the locking bar which is spring biased toward the magnetic rotors. A spring biased control member is shiftable into a locking channel of the locking bar. The control member is equipped with entraining elements which engage the locking bar.
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: March 3, 1981
    Assignee: YMOS-Metallwerke Wolf & Becker GmbH & Co.
    Inventors: Dittmar Schwab, Hermann Bartels, Walter Graf