Patents by Inventor Carsten Wulf

Carsten Wulf 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: 7779732
    Abstract: Screwdriver handle has a storage chamber for screwdriver bits, the storage chamber being displaceable from a closed position into an open position by axial displacement of two parts of the handle with respect to one another. One handle part has a core, which is disposed in a cavity in the other handle part. The two handle parts are held in the closed position of the storage chamber by latching means movable out of a latching position by pressure on an actuating zone (8) associated with an end side of the handle.
    Type: Grant
    Filed: July 8, 2004
    Date of Patent: August 24, 2010
    Assignee: Wera Werk Hermann Werner GmbH & Co. KG
    Inventors: Michael Abel, Ralf-Richard Richter, Werner Tretbar, Carsten Wulf
  • Patent number: 7458296
    Abstract: The invention relates to a tool, especially a screwing tool having a handle with a chuck, and a blade, especially a screwdriver blade, that can be inserted into an insertion opening of the chuck. The blade inserted into the insertion opening is held by a detent of the chuck, said detent being displaced from a detent position to a release position by actuating a trigger. The inventive tool is characterized in that the detent comprises a detent projection which is located on a spring arm that extends in the axial direction of the insertion opening and on the periphery thereof. Said spring arm is displaced by a control element of the trigger that can be displaced in the axial direction from the detent position to the release position. The insertion opening is configured by an insertion cylinder located in a cavity of the handle. The insertion cylinder is produced from plastic and the spring arm is associated with the insertion cylinder in order to form a single part consisting of the same material.
    Type: Grant
    Filed: September 19, 2007
    Date of Patent: December 2, 2008
    Assignee: Wera Werk Hermann Werner GmbH & Co. KG
    Inventors: Ralf-Richard Richter, Carsten Wulf
  • Publication number: 20080047404
    Abstract: The invention relates to a tool, especially a screwing tool having a handle with a chuck, and a blade, especially a screwdriver blade, that can be inserted into an insertion opening of the chuck. The blade inserted into the insertion opening is held by a detent of the chuck, said detent being displaced from a detent position to a release position by actuating a trigger. The inventive tool is characterized in that the detent comprises a detent projection which is located on a spring arm that extends in the axial direction of the insertion opening and on the periphery thereof. Said spring arm is displaced by a control element of the trigger that can be displaced in the axial direction from the detent position to the release position. The insertion opening is configured by an insertion cylinder located in a cavity of the handle. The insertion cylinder is produced from plastic and the spring arm is associated with the insertion cylinder in order to form a single part consisting of the same material.
    Type: Application
    Filed: September 19, 2007
    Publication date: February 28, 2008
    Applicant: Wera Werk Hermann Werner GmbH & Co. KG
    Inventors: Ralf-Richard Richter, Carsten Wulf
  • Publication number: 20070012144
    Abstract: Screwdriver handle has a storage chamber for screwdriver bits, the storage chamber being displaceable from a closed position into an open position by axial displacement of two parts of the handle with respect to one another. One handle part has a core, which is disposed in a cavity in the other handle part. The two handle parts are held in the closed position of the storage chamber by latching means movable out of a latching position by pressure on an actuating zone (8) associated with an end side of the handle.
    Type: Application
    Filed: July 8, 2004
    Publication date: January 18, 2007
    Inventors: Michael Abel, Ralf-Richard Richter, Werner Tretbar, Carsten Wulf