Patents Represented by Attorney, Agent or Law Firm Robert P. Seitter
  • Patent number: 5339867
    Abstract: A composite small-diameter tubing resistant to interaction with materials conveyed therethrough such as liquids containing alcohols or corrosive agents which includes a cylindrical outer metal conduit having a hollow central shaft extending longitudinally therethrough defined by an interior wall; and a continuous non-reactive interior tube surrounded by and positioned within the cylindrical metal conduit. The tubing can be manufactured by a process which includes the steps of a) positioning a length of non-reactive tubing having a predetermined outer diameter within an inner diameter of metal tubing of essentially corresponding length, the metal tube having an unsealed side seam, wherein the inner diameter is greater than the outer diameter of the non-reactive tubing; and b) sealing and reducing the metal tubing to an outer diameter essentially equal to the predetermined outer diameter of the interior tubing. The non-reactive interior tube may be made of a suitable polymeric material.
    Type: Grant
    Filed: December 12, 1991
    Date of Patent: August 23, 1994
    Assignee: ITT Corporation
    Inventors: Ralph A. Iorio, Glen A. Gibbs
  • Patent number: 5339510
    Abstract: A method of manufacturing a wiper blade for a windshield wiper system of a motor vehicle is described, in which wiper blade a pivot pin, that is cylindrical all along its length, is non-rotatably fixed onto a secondary yoke and engages into bearing bushes by way of its ends, which bearing bushes are non-rotatably fixed into the side walls of a primary yoke. This articulated connection is advantageous with respect to corrosional behaviour and thus with respect to the lifetime in comparison to known articulated connections with an articulated rivet that is non-rotatably connected with the primary yoke.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: August 23, 1994
    Assignee: ITT Automotive Europe GmbH
    Inventors: Christian Roth, Wolfgang Scholl
  • Patent number: 5340285
    Abstract: The present invention relates to a drive assembly, in particular a motor pump assembly for slip-controlled brake systems, with a device for transforming rotatory into translatory movements, including a drive shaft which is movably guided in a housing, and an eccentric device which is associated with the drive shaft. In order to be able to change the dimension of the eccentric, it is provided that the eccentric device is formed of two eccentrics which are turnable relative to each other and are in mesh with each other in a form-fit manner, so that at least an eccentric sum dimension formed from the individual eccentric dimensions of two eccentrics, respectively, can be set variably.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: August 23, 1994
    Assignee: Alfred Teves GmbH
    Inventors: Hans-Dieter Reinartz, Helmut Steffes
  • Patent number: 5338100
    Abstract: A motor vehicle seat recliner includes an upper member (34) which is supportive of a seat back (22) and a lower member (36) which is supportive of a seat cushion (21) and is carried for longitudinal adjustment within a host vehicle. An adjuster (40) is operative to establish a substantially fixed angular position between the members, the adjuster including a longitudinally disposed drive screw (62) which is restrained from axial displacement in one direction by an abutment surface (56) which is defined by a thrust plate (46) carried by the lower member and a link (130) which is pivotally interconnected to the screw by a traveling member (126) and is also pivotally interconnected to the upper member by a parallel arrangement of a link control bracket (144) and a displaceable lock plate (154), whereby frontal impact imposed moment arm forces will subject the link and screw to substantially pure compressive loading.
    Type: Grant
    Filed: February 24, 1992
    Date of Patent: August 16, 1994
    Assignee: ITT Corporation
    Inventor: Richard W. A. Rees
  • Patent number: 5333946
    Abstract: The valve sleeve (3) of an electromagnetic valve is secured to a housing by a friction grip, and also a formed interlock using a bushing (1) inserted in a housing bore of a valve housing (2). To enhance the holding force effective on contact faces between valve housing (2), valve sleeve (3) and bushing (1), the friction grip is supplemented by a formed interlock therebetween, with interfit corrugations or a conical-cylindrical combined shape, effective between the contacting faces, to better resist thrust forces exerted by pressure within the sleeve.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: August 2, 1994
    Assignee: Alfred Teves GmbH
    Inventors: Andre F. L. Goossens, Karlheinz Seitz, Josef Lauer
  • Patent number: 5333945
    Abstract: A brake pressure control system for automotive vehicles with an anti-locking control system is disclosed, in which an outlet valve (10) associated with a wheel cylinder has a closing element (5) which is coupled to the closing element (6) of the inlet valve (11) through a coupling housing (14) so that the closing element (5) of said outlet valve opens the closing element (6) of the inlet valve (11) and in its open position it allows closing of the closing element of the inlet valve. A plurality of valve chambers and the action of a self regulating a control bushing (48) which also acts as the coupling, a flow limiting valving action to the wheel cylinder (2) is attained. In another embodiment, inlet and outlet solenoid valves are operated by a single common electrical line, the inlet valve held closed despite deenergization by inlet fluid pressure from the master cylinder or pump as long as the pressure therefrom is greater than the pressure in the wheel cylinder.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: August 2, 1994
    Assignee: Alfred Teves GmbH
    Inventors: Peter Volz, Bernd Schopper
  • Patent number: 5332303
    Abstract: An anti-lock-controlled hydraulic brake system is described having a pump (9) and a master brake cylinder (1). An arrangement for controlling the pump pressure is integrated in the master brake cylinder ( 1 ) and consists of the combination of a connection of the pump to the master cylinder and reservoir, and a primary seal (30, 34) cooperating with a compensating hole (36) in the master cylinder wall. The seal (30, 34) consists of an elastic ring (37) lying on the inside and of a slide ring (38) lying on the outside. The necessary communication between the storage reservoir ( 7 ) and the brake circuits, which enables the brake circuits to be resupplied via a non-return valve, is effected via the nonreturn valves (10, 11) of the pump (9). The double seal can be backed by a secondary seal (41) which completely seals the working chamber against leakage flow past the primary ring seal.
    Type: Grant
    Filed: June 16, 1992
    Date of Patent: July 26, 1994
    Assignee: Alfred Teves GmbH
    Inventor: Hans Wupper
  • Patent number: 5332302
    Abstract: A brake pressure control device (1) is described in which a low-pressure valve (19) and a high-pressure valve (29) are both actuatable by a brake pedal, resulting in a brake circuit (36) being connectible alternatively either to a reservoir (23) or to a pressure source (33, 34) by releasing or depressing the brake pedal. In order to allow control of the brake pressure by an electronic control, a valve piston (17) operating the high and low pressure valves (19, 29) is movable by an electromagnet (15) independently of the actuating position of the brake pedal, into a position in which the brake circuit (36) is connected to the reservoir (23) and the connection to the pressure source (33, 34) is closed.
    Type: Grant
    Filed: July 8, 1992
    Date of Patent: July 26, 1994
    Assignee: Alfred Teves GmbH
    Inventor: Joachim Maas
  • Patent number: 5330021
    Abstract: The invention is related to an electromechanical power steering system (1) for vehicles whose servomotor (5) is positioned in the passenger compartment (2) in order to protect it from negative effects, such as mud, oil, fuel or similar which customarily exist in the engine compartment.
    Type: Grant
    Filed: September 22, 1992
    Date of Patent: July 19, 1994
    Assignee: Alfred Teves GmbH
    Inventors: Wilhelm Beer, Juergen Balz
  • Patent number: 5330268
    Abstract: An apparatus for determining the boiling temperature of a brake fluid to in turn determine the water content therein includes an electrically heatable sensor element (13) immersed into the fluid under test, a power source (12) supplying a current of a constant amplitude, and a measuring system (15) for measuring the voltage drop on the sensor element (13). A stable cellular convection heat transfer mechanism into the surrounding fluid arises, with the voltage drop across the sensor element (13) being indicative of the boiling point of the fluid. The sensor element is in the form of a linear conductor (13', 20, 21) clamped on either end. The sensor element also may comprise a plurality of linear conductors (13', 20, 21) of this type connected in parallel or in series.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: July 19, 1994
    Assignee: Alfred Teves GmbH
    Inventors: Hans-Christof Klein, Peter Lohberg, Hans-Joachim Krause, Arno May, Dietmar Oberdorfer, Ulrich Pluquett
  • Patent number: 5330035
    Abstract: Various forms of a disc brake hold down spring are disclosed, the spring having two legs disposed in a V-shape and being elastically swingable in respect of each other. In a first form, the legs extend axially and are each formed with a wing loop with one side of the wing being lockable in an undercut opening in the housing while the opposite wing side engages the backplate of at least one brake show. In a second form, the legs extend circumferentially have ends engaging the brake shoes, with a central section received in a brake housing guide opening.
    Type: Grant
    Filed: July 24, 1991
    Date of Patent: July 19, 1994
    Assignee: Alfred Teves GmbH
    Inventors: Ulrich Klimt, Georg Halasy-Wimmer, Helmut Ruckert, Matthias Jakob
  • Patent number: 5326235
    Abstract: In order to connect a pump (1) with an electric motor (2) quickly and form-fittingly, a hollow, tappet-shaped stud (6) is formed onto the pot-shaped motor housing (7), specifically onto the bottom of the pot (10). The stud engages an insertion recess (5) of the pump. A driving eccentric (4) of the driven shaft (3) is connected with the pump during the assembly of the pump. If the inside of the tappet-shaped stud (6) is to receive the first motor bearing, a fit is needed at the inside as well as at the outside of the stud. If the motor housing (7) is made from deep drawn sheet metal, the double fit is only possible, if, when viewed in the circumferential direction, the cross section of the wall of the stud (6) is formed like a wave. This facilitates the use of a plastic cover (18) in connection with the sheet metal housing (7) and the avoidance of a carbon brush support plate.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: July 5, 1994
    Assignee: SWF Auto-Electric GmbH
    Inventor: Rainer Bruhn
  • Patent number: 5327056
    Abstract: A circuit configuration for limiting the cutoff voltage occurring in controlling a servomotor (M) by means of width-modulated DC pulses comprises a power transistor (T2) which, via a capacitor (C) is connected through for a short time when a cutoff voltage appears thus limiting the cutoff voltage. Subsequently the transistor (T2) presents a high impedance. As a result a short-circuiting of the servomotor (M) will be prevented in the phase in which a spring force resets the servomotor into its zero position.
    Type: Grant
    Filed: May 5, 1993
    Date of Patent: July 5, 1994
    Assignee: Alfred Teves, GmbH
    Inventors: Heinz Loreck, Mario Engelmann
  • Patent number: 5323685
    Abstract: An actuating unit for a hydraulic brake system for automotive vehicles for shortening the actuating travel of the brake power booster to pre-charge the brake system. The actuating unit includes a master cylinder and a pneumatic brake power booster connected upstream thereof. A first sealing seat (10) of a control valve (9) of the brake power booster (1), which control valve is arranged in a control housing (8), is designed separately of the control housing (8) to be slidable within limits in relation thereto. The first sealing seat (10) is held on a stop (18) on the booster housing during a predefinable actuating stroke of the control housing (8) and, respectively, of a movable wall (5) generating the boosting force. After the required actuating travel of the brake power booster, the first sealing seat (10) is carried away from the stop (18) which causes a connection between the working chamber (7) and the vacuum chamber (6).
    Type: Grant
    Filed: September 3, 1992
    Date of Patent: June 28, 1994
    Assignee: Alfred Teves GmbH
    Inventor: Wilfried Wagner
  • Patent number: 5322356
    Abstract: A method and a circuit configuration to augment the driving stability of a road vehicle using traction slip control by brake management. The drive wheel is identified which instantaneously exhibits the higher coefficient of friction (HM-wheel). The rotational pattern of this wheel is monitored and stabilized by brake management as soon as the traction slip of this wheel exceeds a limit value. Braking pressure which may exist in the wheel brake of the second drive wheel (LM-wheel) is decreased.
    Type: Grant
    Filed: January 14, 1993
    Date of Patent: June 21, 1994
    Assignee: Alfred Teves GmbH
    Inventors: Alexander Kolbe, Klemens Roesch
  • Patent number: 5320024
    Abstract: To preclude a rolling diaphragm forming together with a metallic diaphragm plate the movable wall of a vacuum brake force booster from being detached from a groove accommodating the radially inward area of the rolling diaphragm, it is provided, in the practice of the invention, that the contour of a supporting face for the diaphragm plate formed on the control valve housing and the contour of the radially inward area (sealing bead of the rolling diaphragm correspond to the curved shaped of the radially inward area (curvature) of the diaphragm plate, and that both the contour of the supporting face and the one of the radially inward area (sealing bead) of the rolling diaphragm correspond to the curved shape of the radially inward area (curvature) of the diaphragm plate, and that the groove with the axial dimension thereof extends into the bearing area of the diaphragm plate of the support face.
    Type: Grant
    Filed: December 17, 1990
    Date of Patent: June 14, 1994
    Assignee: Alfred Teves GmbH
    Inventors: Wilfried Wagner, Kai-Maichael Graichen
  • Patent number: 5318066
    Abstract: A solenoid valve for hydraulic brake units with slip control is described which has a magnetic armature (2) surrounded by a valve dome (14), the magnetic armature (2) positioned by energization of a magnet coil (16) , so that a valve needle (1) which is carried by the magnetic armature (2) is moved onto a valve seat (3). A hydraulic actuating force is generated by an arrangement causing the valve needle (1) to open even through the solenoid valve is energized causing the valve to act as a pressure relief or limiter valve.
    Type: Grant
    Filed: May 7, 1992
    Date of Patent: June 7, 1994
    Assignee: Alfred Teves GmbH
    Inventors: Jochen Burgdorf, Peter Volz, Andre F. L. Goossens
  • Patent number: 5316258
    Abstract: A strap is coupled between the sliding upper track of a power seat adjuster and the lead screw of a horizontal drive to transmit forces acting on the upper track which move the upper track in a forward direction to the lead screw bypassing the horizontal drive gears. The horizontal drive gears coupling the horizontal drive motor output shaft to the lead screw and the gear housing surrounding the drive gears are formed of a plastic material. In one embodiment, the strap has first and second ends with the first end loosely surrounding the lead screw. The second end of the strap is coupled in a force transmitting path with the upper track. An intermediate portion of the strap between the first and second ends is formed in a predetermined contour to deform under tension toward a planar shape and is disposed bypassingly around the drive gears.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: May 31, 1994
    Assignee: ITT Corporation
    Inventors: Derek K. Gauger, Kirk K. Horvet, Phillip Chaban
  • Patent number: 5314204
    Abstract: A steering shaft is rotatably mounted within a steering column housing and is formed of two telescopingly engaged steering shaft members. A portion of one of the steering shaft members is deformed into a notch formed at one end of the other steering shaft member to mechanically and non-separably interconnect the two shaft members together during normal operating conditions, and allowing separation and telescoping collapse of the steering shaft members under axial force on the steering column shaft. A longitudinally extending projection is formed in the outer steering shaft members and engages the inner disposed steering shaft member to rigidly interconnect the two steering shaft members.
    Type: Grant
    Filed: November 16, 1992
    Date of Patent: May 24, 1994
    Assignee: ITT Corporation
    Inventors: Dan DuRocher, Ellsworth Miller
  • Patent number: 5312169
    Abstract: A circuit configuration for an automotive vehicle with anti-lock control and/or traction slip control is equipped with wheel sensors (S1-S4), with circuits for handling and evaluating the sensors signals (respectively 1 and 2-4) and for generating braking pressure control signals and/or traction torque control signals. Further, a compass or compass system (7) is provided whose output signals are feedable to the evaluation circuits (4) and evaluatable for improving control, for identifying cornering, for assessing the driving stability etc. or also for monitoring proper operation.
    Type: Grant
    Filed: December 16, 1992
    Date of Patent: May 17, 1994
    Assignee: Alfred Teves GmbH
    Inventor: Gunther Buschmann