Patents Assigned to Robert
  • Servocylinder with an electric piston stroke limiting switch
    Patent number: 4843951
    Abstract: A servocylinder (1, 3, 4) with an electric piston end position transmitter is suggested. It is constructed as a piezoelectric converter (17 and 18). By means of applying voltage to the piezoelectric converter (17 and 18) the latter becomes a regulating element which overcomes a force holding the piston (2) in its stroke end position and removes the piston (2) from its position in which the feed line (7 and 8) of the pressure medium is sealed.
    Type: Grant
    Filed: October 6, 1987
    Date of Patent: July 4, 1989
    Assignee: Robert Bosch GmbH
    Inventors: Gerhard Bruggen, Manfred Gaugler, Dieter Karr, Josef Winkler
  • Machine for brewing coffee and other hot beverages
    Patent number: 4843955
    Abstract: A machine for brewing coffee or other hot beverages has a container for a supply of liquid, a heater, a hollow filter holder which can receive a relatively large quantity of comminuted coffee beans or another flavoring agent, and a riser which conveys heated liquid to the filter holder. The admitted liquid contacts the confined supply of flavoring agent and can be discharged by way of a sealable opening in the bottom wall of the filter holder. If the machine is to brew a single cupful or a similar relatively small quantity of a hot beverage, the holder receives an insert which can hold a small quantity of flavoring agent and is contacted by hot liquid before the liquid enters the interior of the holder where it can be stored or discharged into a cup or another relatively small vessel.
    Type: Grant
    Filed: April 22, 1988
    Date of Patent: July 4, 1989
    Assignee: Robert Krups Stiftung & Co. K.G.
    Inventors: Stefan Henn, Klaus Beumer
  • Method of cleaning workpieces with a liquid solvent
    Patent number: 4844743
    Abstract: A method and system for cleaning workpieces with a liquid solvent in a treatment chamber which is connected into a drying gas circuit for the purpose of drying the workpieces. The drying gas circuit includes in series one after the other a ventilator, a condenser, a heating device and an adsorber containing activated carbon. The circuit is operated such that during a drying phase the condenser is cooled, the heating device switched on and the activated carbon regenerated by the hot circulating air whereupon, during an adsorption phase with the condenser switched on and the heating device switched off, the remaining solvent vapor is withdrawn from the circulating drying air by the activated carbon.
    Type: Grant
    Filed: March 21, 1985
    Date of Patent: July 4, 1989
    Assignees: LPW Reinigungstechnik GmbH, Robert Bosch GmbH
    Inventors: Heinz Koblenzer, Peter Hosel, Franz Staudinger, Klaus Franke
  • Hydraulic brake booster with parallel booster pistons
    Patent number: 4843819
    Abstract: A brake booster has a first booster cylinder and a booster piston disposed in it for displacing a master cylinder piston to pressurize a brake circuit. A tappet displaces the first booster piston directly if boost fluid pressure is inadequate. A second booster piston in a parallel booster cylinder drives a pump piston which also pressurizes the brake circuit. The second booster piston and the pump piston have hydraulically effective surface areas which are matched to one another so as to have a larger boosting ratio than the first booster piston and master cylinder piston. Forward displacement of the second booster piston causes a bent arm to contact and push the first booster piston forward. If the boost pressure supply apparatus fails, then only the first booster piston and the master cylinder piston are displaced by the brake pedal; brake pedal travel increases considerably.
    Type: Grant
    Filed: January 29, 1988
    Date of Patent: July 4, 1989
    Assignee: Robert Bosch GmbH
    Inventor: Heinz Leiber
  • Method and apparatus for data exchange between microprocessors
    Patent number: 4845667
    Abstract: A method and apparatus for data exchange between a master microprocessor and a slave microprocessor, in which the connection is a parallel bus and the data exchange requires a minimum of time. For this purpose, the data are transmitted in a predetermined sequence and in which the transmission-start identifier is a signal train generated by the master processor which is specifically associated with data transmission. Preferably, a master processor and a slave processor are interconnected by the parallel data bus, with buffer memories, such as latches, interposed. A toggle flip-flop is connected to the interrupt input of the slave processor in such a way that merely placing a specific instruction (i.e. command+data) on the bus simultaneously notifies the slave processor to prepare for the exchange of data, thereby saving time.
    Type: Grant
    Filed: September 22, 1988
    Date of Patent: July 4, 1989
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Hoptner, Gerhard Lotterbach, Egbert Perenthaler, Jan F. van Woudenberg, Udo Zucker
  • Fuel injection pump for internal combustion engines including onset of supply control means
    Patent number: 4842496
    Abstract: It is proposed that a drive tappet of a pump piston be provided with an integrated hydraulic supply onset adjusting device. This device includes an adjusting piston, which is guided in a work cylinder and is joined to the piston base of the pump piston, and a pressure chamber. The delivery of the control fluid pumped into the pressure chamber is effected via a delivery conduit discharging into the cylinder bore and a connecting conduit extending inside the pump piston and leading to the pressure chamber. By means of the control point located at the discharge point of the delivery conduit, relatively high control pressures can be fed into the system without relatively large leakage losses. The apparatus is usable in all piston-type supply pumps in which a control face on the pump piston, in cooperation with the control opening in the cylinder bore, determines the onset of supply.
    Type: Grant
    Filed: December 31, 1984
    Date of Patent: June 27, 1989
    Assignee: Robert Bosch GmbH
    Inventor: Walter Hafele
  • Polarographic oxygen sensor, particularly for combustion exhaust gases
    Patent number: 4842713
    Abstract: To accurately control access of measuring gas into the measuring electrode (15) of a polarographic sensor having a tubular body (12) of solid electrolyte material, the tubular body is enclosed within a protective sleeve (38) closed at one end and embodying a diffusion resistance element, or diffusion resistance zone (43/1, 43/2); if the sleeve is of metal, a separate diffusion resistance element, for example, made of aluminum oxide or spinell may be used; if the sleeve is made of ceramic, the end portion may be thickened and the diffusion resistance zone formed therein, for example, by micropores or microchannels or microducts extending therethrough.
    Type: Grant
    Filed: November 3, 1987
    Date of Patent: June 27, 1989
    Assignee: Robert Bosch GmbH
    Inventor: Roland Stahl
  • Fuel injection pump for internal combustion engines
    Patent number: 4842497
    Abstract: Fuel injection pump for internal combustion engines with several pump elements located inline, wherein the commencement of injection of each of these pump elements takes place by a control spool axially displaceable on the pump piston and by control of relief ducts provided at the pump working spaces of the pump, the control spools are operated by a torque shaft which is formed in two parts, the first shaft part is axially secured, and the second shaft part is guided so as to be sealed in a bearing bush located in the pump casing. The two shaft parts are pushed one into the other by means of a trunnion and a blind hole which receives the trunnion. The shaft parts are rotationally connected to one another by means of a claw clutch.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: June 27, 1989
    Assignee: Robert Bosch GmbH
    Inventors: Walter Hafele, Manfred Kramer, Johann Warga
  • Detection and verification of lapses or shifts of synch words in PCM data
    Patent number: 4843489
    Abstract: A first counter operating at the PCM sampling frequency counts out the normal minimum period between successive synchronization words in the data stream. In a following "window" the detection of another synchronization word produces a check signal and in all other cases a provisional check signal. In such other case the data for the next period are marked as dubious. A second counter counts out twice the minimum normal interval between synchronization words and in a following "window", the appearance of a synchronization word produces a verification signal. The occurrence of a verification signal one normal interval after a provisional check signal removes the marking of intervening data as "dubious". If no verification signal is then produced, the intervening data are marked and treated as erroneous.
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: June 27, 1989
    Assignee: Robert Bosch GmbH
    Inventors: Josef Sochor, Werner Staude
  • Fuel injection pump
    Patent number: 4840155
    Abstract: A fuel injection pump, capable of providing a preliminary fuel injection and a main fuel injection, includes a pump piston movable in a housing to define a pump working chamber which is connected with a fuel injection valve during the pumping stroke of the piston. The working chamber is relieved by the valve-closing member of the pressure valve. A magnetic valve which controls the function of the pressure-closing member is provided in the pump. An opening pressure of the pressure valve is greater than that of the fuel injection valve so that the preliminary injection is obtained with the initially open magnetic valve whereas the duration of the main fuel injection is controlled by the closed magnetic valve.
    Type: Grant
    Filed: April 27, 1988
    Date of Patent: June 20, 1989
    Assignee: Robert Bosch GmbH
    Inventor: Anton Karle
  • Fuel injection pump for internal combustion engines
    Patent number: 4840161
    Abstract: A fuel injection pump for internal combustion engines, in particular having a plurality of linearly aligned pump elements, the pump injection onset is determined by one control slide per pump element in which the control slide is axially displaceable on the pump plunger and by a control of relief conduits of the pump work chambers. The control slide is actuated via a torque shaft in that a respective adjusting bolt of a straddling element joined to the torque shaft engages a cross groove of the control slide. The adjusting bolt has a cylindrical stud portion and a slide shoe supported thereon, and the slide shoe is secured against axial displacement by means of a head of the adjusting bolt.
    Type: Grant
    Filed: June 29, 1988
    Date of Patent: June 20, 1989
    Assignee: Robert Bosch GmbH
    Inventors: Wolfgang Eckell, Josef Guentert, Walter Haefele, Manfred Kraemer, Uwe Kuhn, Johann Warga
  • Device for actuating a throttle valve
    Patent number: 4840349
    Abstract: A device that serves to actuate a throttle valve. The actuating device includes an electric drive motor and a step-down gear driven by the motor; an output shaft of the step-down gear is operatively connected to a throttle valve shaft which controls the throttle valve. The actuating device is compact in structure as well as versatile in use, even with various sizes of throttle valve, the step-down gear is embodied as a planetary gear having its output shaft provided with a gear wheel, which is operatively connected via a toothed belt with a second gear wheel, disposed on the throttle valve shaft. The motor is controlled by a control means assembled in the same housing as the motor and the throttle valve.
    Type: Grant
    Filed: November 15, 1988
    Date of Patent: June 20, 1989
    Assignee: Robert Bosch GmbH
    Inventors: Cornelius Peter, Uwe Schaper, Lothar Schmidt
  • Artificial hip joint socket with hydraulic head support
    Patent number: 4840631
    Abstract: A liquid chamber (3) arranged in the bottom of the socket cavity (2) is latitudinally sealed by the engaging ball head (4) of the femoral prosthesis shaft. The ball head (4) of the hip joint prosthesis is supported hydrostatically by the liquid chamber (3) filled with synovia and sealed by the ball head following a deformation of the elastic sealing edge (5). By means of the hydrostatic support, the friction moment increases only a little when the load becomes higher and approaches a constant value which is considerably lower than in conventional hip joint sockets.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: June 20, 1989
    Assignee: Robert Mathys Co.
    Inventor: Robert Mathys
  • Computer architecture providing programmable degrees of an almost condition
    Patent number: 4841473
    Abstract: This invention features a new computer system architecture comprising a variable comparison of input data with programmable Template data. The system has the capability to provide an "almost" condition, which is a similarity match between a near or close actual data and the "exact" data stored in template memory. Different degree levels of "almost" are possible with the inventive system.
    Type: Grant
    Filed: December 19, 1986
    Date of Patent: June 20, 1989
    Assignee: Robert S. Salzman
    Inventor: Albert D. DePaul
  • Fuel injection pump
    Patent number: 4840162
    Abstract: In a fuel injection pump for internal combustion engines having at least one pump piston defining a pump work chamber and set into reciprocating motion by a cam drive for executing an intake stroke and a supply stroke, and having an electrical switching valve controlling the duration of supply and disposed in a relief line leading from the pump work chamber to a pump interior, a non-return valve having an opening direction toward the pump work chamber is disposed in a fuel inflow line connecting the pump interior with the pump work chamber in order to attain an emergency stoppage of the engine in the event the switching valve malfunctions. The valve element of the non-return valve is acted upon on one side by a valve closing spring and on the other by a fuel-filled control chamber, with which the valve element is locked in its closing position during the closed position of the switching valve.
    Type: Grant
    Filed: May 10, 1988
    Date of Patent: June 20, 1989
    Assignee: Robert Bosch GmbH
    Inventor: Andre Brunel
  • Vehicle brake system having an anti-skid apparatus
    Patent number: 4840434
    Abstract: The proposed vehicle brake system includes a brake fluid pressure device embodied as a brake booster, front wheel brakes rear wheel brakes and an anti-skid apparatus having valves for maintaining, reducing and increasing brake pressure. One of the brake pressure maintenance valves is associated with the rear wheel brakes and is further developed into a valve combination, which additionally includes a brake pressure regulating valve. The valve combination includes only one valve seat and one valve element, which serves both for keeping braking pressure constant in the anti-skid situation and to limit the rear wheel braking pressures during braking. The valve element is controlled on one side by a control piston acted upon by brake pressure and on the other by an electromagnet.
    Type: Grant
    Filed: July 1, 1985
    Date of Patent: June 20, 1989
    Assignee: Robert Bosch GmbH
    Inventor: Heinz Leiber
  • Vasometric test apparatus for finger testing
    Patent number: 4838277
    Abstract: To permit loose and relaxed position of the hand of a patient over a vasometric apparatus, the apparatus is formed in the shape of a hollow domed housing within which a volume pulse sensor (30) is located, retained with resiliently adjustable bias force such that the sensing surface (33) of the volume pulse sensor extends just slightly above the outer surface of the domed housing. The spring force with which the sensor engages a finger (45) of the patient is adjustable by an externally adjustable disk or wheel (37).
    Type: Grant
    Filed: May 16, 1988
    Date of Patent: June 13, 1989
    Assignee: Robert Bosch GmbH
    Inventors: Karl-Heinz Affeldt, Ulrich Hantel
  • Method and system for testing internal combustion engine computerized control units
    Patent number: 4839812
    Abstract: A control unit installed in a vehicle, particularly a control unit to control an internal combustion engine (ICE) thereof, has within its already present computation stage, a program store or program memory (PS, 2b') which stores a test program (TP) therein. The program store (PS) also includes an operating program memory (OP) used to control operation of the vehicle and/or the ICE thereof. The test apparatus includes a test computer and comparator (1) and a simulation and measuring unit which applies simulated input signals to the vehicular control unit, for example sequentially and only to single inputs thereof. The test program within the vehicular control unit is then run under control of the test computer and forwards the data referring to the applied signals via the serial interface 5 to the test computer 1 for evaluation.
    Type: Grant
    Filed: September 16, 1987
    Date of Patent: June 13, 1989
    Assignee: Robert Bosch GmbH
    Inventors: Claus-Dieter Nusser, Johannes Locher
  • Device for delivering washing liquid to two spaced spraying nozzles for moistening a windshield of a motor vehicle
    Patent number: 4838488
    Abstract: A device for delivering washing liquid to two spraying nozzles spaced from each other at two areas of a pane being washed or two panes being washed comprises a pump with a rotor driven in two opposite directions and a delivery unit connected to the pump and having two pressure chambers with two outlets connected to the respective nozzles and each alternatively receiving the liquid from the pump. A limiter which separates the chambers from each other has two portions movable under pressure and each provided with a sealing diaphragm which closes the respective outlet. Two diaphragms can close both outlets when the pump is in non-operative position.
    Type: Grant
    Filed: February 2, 1988
    Date of Patent: June 13, 1989
    Assignee: Robert Bosch GmbH
    Inventors: Christoph Heier, Gerd Lentz, Rainer Ritter
  • Fuel injection pump for internal combustion engines
    Patent number: RE32965
    Abstract: A fuel injection pump is proposed for internal combustion engines having a pump piston having a blind bore and two control bores and in which the fuel quantity to be supplied is controlled by means of a control slide having oblique control edges. At least two control edges are provided in a window-like recess of the control slide, of which the lower edge in each case and possibly the upper one as well extend obliquely; the upper control edge provided in the recess determines the supply onset, in cooperation with the first control bore, and the lower control edge of the recess determines the end of supply, in cooperation with the second control bore.
    Type: Grant
    Filed: July 22, 1987
    Date of Patent: June 27, 1989
    Assignee: Robert Bosch GmbH
    Inventor: Walter Schmid