Patents by Inventor Egbert Frenken

Egbert Frenken 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: 7434441
    Abstract: The invention relates to a pair of pressing jaws for hydraulic or electric pressing tools for pressing fittings onto pipes or for the press connection of electric cables, the two pressing jaws being disposed for rotation about a common axis and each pressing jaw forming a bearing eye for this purpose. In order to configure a pair of pressing jaws of the type in question in a more functionally advantageous manner, it is proposed that each pressing jaw forms two bearing eyes with coaxial bearing openings, and the bearing eyes are disposed in an interengaging manner in the assembled state.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: October 14, 2008
    Assignee: Gustav Klauke GmbH
    Inventor: Egbert Frenken
  • Patent number: 7421877
    Abstract: The invention relates to an electrohydraulic pressing device (1) that can be operated using one hand. The device comprises a working head (30), an electric motor (4), a pump (20), a hydraulic reservoir (33), and a gear mechanism (19) extending between the electric motor (4) and the pump (20). A holding area (5) around which a hand is placed is provided and an actuating switch (39) is assigned to this area. The aim of the invention is to improve a pressing device of this type with regard to the handling thereof. To this end, the invention provides that the holding area (5) is formed around the electric motor (4), and the actuating switch (39) is situated between the electric motor (4) and the working head.
    Type: Grant
    Filed: January 11, 2007
    Date of Patent: September 9, 2008
    Assignee: Gustav Klauke GmbH
    Inventor: Egbert Frenken
  • Patent number: 7412868
    Abstract: An electrohydraulic pressing device is suitable for one-handed operation. The device includes a housing having a working head attached thereto, an electric motor provided within the housing for actuating the working head, the electric motor being rearward of the working head, an actuating switch for actuating the working head, a rearward switch provided within the housing rearward of the motor; and a lever extending from the actuating switch to the rearward switch. The lever is within the housing and the housing around the lever forms a gripping region. When the actuating switch is actuated, the lever is moved to actuate the rearward switch.
    Type: Grant
    Filed: May 23, 2007
    Date of Patent: August 19, 2008
    Assignee: Gustav Klauke GmbH
    Inventor: Egbert Frenken
  • Patent number: 7409846
    Abstract: An insulating covering is provided for a pressing jaw of a pair of pressing jaws for hydraulic or electric pressing tools for pressing fittings onto pipes or for the press connection of electric cables. The insulating covering includes a pair of legs having a substantially c-shaped cross-sectional configuration, and an articulation portion provided between the legs.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: August 12, 2008
    Assignee: Gustav Klauke GmbH
    Inventor: Egbert Frenken
  • Publication number: 20080072436
    Abstract: A pair of cutting jaws are provided for a hydraulic or electric pressing tool. Each jaw is formed in the manner of a lever, with a driving portion and a working portion, which extend in opposite directions from a pivot axis. The working portion is reduced in its thickness by half or more in comparison with the driving portion.
    Type: Application
    Filed: June 12, 2007
    Publication date: March 27, 2008
    Inventor: Egbert Frenken
  • Publication number: 20080069663
    Abstract: A locking bolt for mounting a tool in a hydraulic press, it being possible for the locking bolt to move in a bolt receptacle between a locking position and a release position, with a securing element, which is located in the bolt receptacle and secures the locking position by positive engagement in the locking bolt, the locking bolt also having a securing portion, and the locking bolt being secured against movement into the release position when the securing element is located in the securing portion. The locking bolt has a longitudinal groove, in that the securing portion is formed with a securing depth in any event corresponding to a groove depth of the longitudinal groove and in that the securing portion is formed such that it is adjacent to the longitudinal groove in the circumferential direction, with a direct transition from a groove base into the securing position.
    Type: Application
    Filed: November 21, 2007
    Publication date: March 20, 2008
    Inventors: EGBERT FRENKEN, FRANK WILSDORF
  • Publication number: 20080016939
    Abstract: The invention relates to a pair of pressing jaws for hydraulic or electric pressing tools for pressing fittings onto pipes or for the press connection of electric cables, two pressing jaws connected to one another in an articulated manner forming a pair of pressing jaws, the pressing jaws being biased into their open position by a tension spring which spans a free space between the two pressing jaws, and in each case one end of the tension spring being accommodated in an accommodating opening which opens out into a narrow peripheral side of the pressing jaw, this narrow peripheral side being directed toward the free space, and, in order to secure the tension spring, a tension-spring end engaging around a pin-like securing part, which securing part is disposed at that end of the accommodating opening which is directed away from the free space.
    Type: Application
    Filed: September 5, 2007
    Publication date: January 24, 2008
    Inventor: Egbert Frenken
  • Publication number: 20080003893
    Abstract: The invention relates to a cable lug (1) comprising a receiving tube section (4) for the cable (19), a flat piece-connecting section (5) that is molded on and is provided with a bore (6), and a nut (2) which is captively mounted on the flat piece-connecting section (5) and is preferably rotatably mounted. Said nut (2) does not penetrate the flat piece-connecting section (5) while being mounted by means of a shaped mounting material section (16) of the flat piece-connecting section (5), which extends into an undercut (9) that is embodied on the nut. In order to be able to rotatably mount the nut or the functional part, the mounting material section (16) is accommodated in the undercut (9) with an axial clearance. Furthermore, the mounting material section (16) is rooted in an area of the flat piece-connecting section which is lowered in a step-type manner.
    Type: Application
    Filed: October 12, 2005
    Publication date: January 3, 2008
    Applicant: GUSTAV KLAUKE GMBH
    Inventor: Egbert Frenken
  • Publication number: 20070214918
    Abstract: The invention relates to a pair of pressing jaws for hydraulic or electric pressing tools for pressing fittings onto pipes or for the press connection of electric cables, the two pressing jaws being disposed for rotation about a common axis and each pressing jaw forming a bearing eye for this purpose. In order to configure a pair of pressing jaws of the type in question in a more functionally advantageous manner, it is proposed that each pressing jaw forms two bearing eyes with coaxial bearing openings, and the bearing eyes are disposed in an interengaging manner in the assembled state.
    Type: Application
    Filed: June 7, 2007
    Publication date: September 20, 2007
    Inventor: EGBERT FRENKEN
  • Publication number: 20070214860
    Abstract: An electrohydraulic pressing device is suitable for one-handed operation. The device includes a housing having a working head attached thereto, an electric motor provided within the housing for actuating the working head, the electric motor being rearward of the working head, an actuating switch for actuating the working head, a rearward switch provided within the housing rearward of the motor; and a lever extending from the actuating switch to the rearward switch. The lever is within the housing and the housing around the lever forms a gripping region. When the actuating switch is actuated, the lever is moved to actuate the rearward switch.
    Type: Application
    Filed: May 23, 2007
    Publication date: September 20, 2007
    Inventor: EGBERT FRENKEN
  • Patent number: 7254982
    Abstract: The invention relates to an electrohydraulic pressing device (1) that can be operated using one hand. The device comprises a working head (30), an electric motor (4), a pump (20), a hydraulic reservoir (33), and a gear mechanism (19) extending between the electric motor (4) and the pump (20). A holding area (5) around which a hand is placed is provided and an actuating switch (39) is assigned to this area. The aim of the invention is to improve a pressing device of this type with regard to the handling thereof. To this end, the invention provides that the holding area (5) is formed around the electric motor (4), and the actuating switch (39) is situated between the electric motor (4) and the working head.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: August 14, 2007
    Assignee: Gustav Klauke GmbH
    Inventor: Egbert Frenken
  • Publication number: 20070180887
    Abstract: The invention relates to an electrohydraulic pressing device (1) that can be operated using one hand. The device comprises a working head (30), an electric motor (4), a pump (20), a hydraulic reservoir (33), and a gear mechanism (19) extending between the electric motor (4) and the pump (20). A holding area (5) around which a hand is placed is provided and an actuating switch (39) is assigned to this area. The aim of the invention is to improve a pressing device of this type with regard to the handling thereof. To this end, the invention provides that the holding area (5) is formed around the electric motor (4), and the actuating switch (39) is situated between the electric motor (4) and the working head.
    Type: Application
    Filed: January 11, 2007
    Publication date: August 9, 2007
    Inventor: EGBERT FRENKEN
  • Patent number: 7216523
    Abstract: The invention relates to a pair of pressing jaws for hydraulic or electric pressing tools for pressing fittings onto pipes or for the press connection of electric cables, the two pressing jaws being disposed for rotation about a common axis and each pressing jaw forming a bearing eye for this purpose. In order to configure a pair of pressing jaws of the type in question in a more functionally advantageous manner, it is proposed that each pressing jaw forms two bearing eyes with coaxial bearing openings, and the bearing eyes are disposed in an interengaging manner in the assembled state.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: May 15, 2007
    Assignee: Gustav Klauke GmbH
    Inventor: Egbert Frenken
  • Publication number: 20070020988
    Abstract: An insulating covering is provided for a pressing jaw of a pair of pressing jaws for hydraulic or electric pressing tools for pressing fittings onto pipes or for the press connection of electric cables. The insulating covering includes a pair of legs having a substantially c-shaped cross-sectional configuration, and an articulation portion provided between the legs.
    Type: Application
    Filed: September 25, 2006
    Publication date: January 25, 2007
    Inventor: Egbert Frenken
  • Publication number: 20070003392
    Abstract: A locking bolt for mounting a tool in a hydraulic press, it being possible for the locking bolt to move in a bolt receptacle between a locking position and a release position, with a securing element, which is located in the bolt receptacle and secures the locking position by positive engagement in the locking bolt, the locking bolt also having a securing portion, and the locking bolt being secured against movement into the release position when the securing element is located in the securing portion, characterized in that the locking bolt has a longitudinal groove, in that the securing portion is formed with a securing depth in any event corresponding to a groove depth of the longitudinal groove and in that the securing portion is formed such that it is adjacent to the longitudinal groove in the circumferential direction, with a direct transition from a groove base into the securing position.
    Type: Application
    Filed: August 1, 2006
    Publication date: January 4, 2007
    Applicant: GUSTAV KLAUKE GMBH
    Inventors: Egbert Frenken, Frank Wilsdorf
  • Patent number: 7086979
    Abstract: A gear mechanism or motor includes a shaft, and output rotary bodies which are in engagement therewith. The bodies interact with the shaft in the radial direction, by bearing against the shaft, and interact in the axial direction of the shaft with an upper guideway body which can move in the axial direction and is loaded toward the bodies. An interaction region of the shaft has a circular cross section. A guideway of the guideway body is structured in terms of its height over its periphery.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: August 8, 2006
    Assignee: Gustav Klauke GmbH
    Inventor: Egbert Frenken
  • Patent number: 7065995
    Abstract: The invention relates to an expansion tool for expanding tube ends. The expansion tool has an expansion mandrel and a counter-support, said expansion mandrel consisting of a tow-bar and an elastic rubber expansion element surrounding it. The counter-support supports the expansion element on the base extremity and radially surrounds it at a distance. In order to improve an expansion tool of the above-described kind, the tow-bar is anchored in a bolt fastening element and the counter-support can be impinged upon via a pressure bar element that projects beyond the bolt fastening element in the longitudinal direction of the tow-bar.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: June 27, 2006
    Assignee: Gustav Klauke GmbH
    Inventor: Egbert Frenken
  • Patent number: 6990843
    Abstract: The invention relates to a pressing tool (8) provided with three or four press mandrels (12, 15) which move towards each other during the pressing process. The press mandrels (12–15) have a roof-shaped transversal profile. The lateral distance (36) between the press mandrels (12–15) is increasingly reduced during the pressing process. An extending element (37) is arranged between two press mandrels, extending from one press mandrel to another press mandrel and being inserted into the other press mandrel during the pressing process. The aim of the invention is to improve said pressing device and to improve pressing. In order to block the above-mentioned distance (36), the extending element (37) is disposed in such a way that both roof edges (38) of the corresponding press mandrels cut across said extending element (37) in an initial position.
    Type: Grant
    Filed: December 1, 2001
    Date of Patent: January 31, 2006
    Assignee: Gustav Klauke GmbH
    Inventor: Egbert Frenken
  • Publication number: 20060000072
    Abstract: The invention relates to a pair (1) of pressing jaws for hydraulic or electric pressing tools for pressing fittings onto pipes or for the press connection of electric cables, the two pressing jaws (3) being disposed for rotation about a common axis (x) and each pressing jaw (3) forming a bearing eye (4, 5) for this purpose. In order to configure a pair of pressing jaws of the type in question in a more functionally advantageous manner, it is proposed that each pressing jaw (3) forms two bearing eyes (4, 5) with coaxial bearing openings (6), and the bearing eyes (4, 5) are disposed in an interengaging manner in the assembled state.
    Type: Application
    Filed: July 2, 2004
    Publication date: January 5, 2006
    Inventor: Egbert Frenken
  • Patent number: 6966230
    Abstract: A dynamometric tool uses a four-mandrel press. The press head is provided with a specific press geometry which is predefined by the mandrels. The dynamometric tool produces a tool which can determine the actual force of compression in an easy-to-handle manner. The dynamometric tool also has two levers which are joined together and adapted to the geometry of the press head, and which interact upon a pressure sensor during compression.
    Type: Grant
    Filed: September 8, 2001
    Date of Patent: November 22, 2005
    Assignee: Gustav Klauke GmbH
    Inventor: Egbert Frenken