Patents Assigned to Robert
  • Eccentric grinder with a device for changing a grinding motion
    Patent number: 4759152
    Abstract: An eccentric grinder includes a motor-driven shaft, an eccentric drive connected to the shaft to impart to a grinding disc one mode of grinding motion and a rolling drive including friction or toothed crowns on the grinding disc and the housing cooperating with each other to impart to the grinding disc another mode of grinding motion. The grinder is provided with a ring carrying two toothed crowns at the opposite edges thereof and releasably insertable into a recess formed in a ring-shaped element fixed to the housing of the grinder so that one mode of grinding can be easily changed to the other mode of grinding.
    Type: Grant
    Filed: January 6, 1987
    Date of Patent: July 26, 1988
    Assignee: Robert Bosch GmbH
    Inventors: Gunther Berger, Dieter Dorr, Gunter Schaal, Fred Weinmann
  • Water ski binder
    Patent number: 4759734
    Abstract: A slideable toe piece has rearward extensions which are cam locked in place in tunnels in the fixed heel piece.
    Type: Grant
    Filed: December 23, 1986
    Date of Patent: July 26, 1988
    Assignee: Robert S. Scheurer
    Inventors: Robert S. Scheurer, Kendal Hancock
  • Equilibration method for electrical focussing of television camera tubes
    Patent number: 4760454
    Abstract: With the signal electrode of a camera tube uniformly illuminated by diffuse light, scanning of the signal electrode by the electron beam is caused to leave unaffected certain lines or parts of lines which are scanned in the next frame. This may be done by blanking the beam out for a field, a line or part of a line in every two frames, or by shifting the lines of one field to superimpose them on those of the other field for a corresponding interval in every two frames. The video signal occurring when a previously unscanned line or line portion is first scanned is measured and compared with the previous measured value, in response to which the setting of the focussing control is shifted towards a smaller beam spot for a renewed measurement. When the signal rises to a higher magnitude, which would approximate twice the video signal of a normal scan, in the ideal case, the setting procedure is complete.
    Type: Grant
    Filed: December 3, 1986
    Date of Patent: July 26, 1988
    Assignee: Robert Bosch GmbH
    Inventor: Rainer Gehrmann
  • Method and apparatus for loading and unloading tooling from a foundry machine
    Patent number: 4757855
    Abstract: A foundry machine for forming molds or cores from a molding material such as sand provides completely automated loading and unloading of tooling elements (24). The tool elements (24) comprising a sand magazine (36), blow plate (34), combined gassing manifold and top ejector unit (32), upper mold box (30), lower mold box (28) and bottom stool (26) are automatically transferred, in stacked, separable relationship, by tracks (40) to a vertically displaceable, work table. Vertical displacement of the work table (42) sequentially elevates the tooling elements (24) to positions within a mainframe (10) where automatically operated clamping means secure the appropriate tooling elements (24) in respective operating positions. The gassing manifold (32) includes an ejector pin assembly (274, 280) mounted therewithin.
    Type: Grant
    Filed: April 2, 1987
    Date of Patent: July 19, 1988
    Assignee: Roberts Corporation
    Inventors: Pheroze J. Nagarwalla, Jackson E. Brown, Kenneth E. Bellis
  • Electromagnetic valve
    Patent number: 4756331
    Abstract: An electromagnetic valve has an armature, a plunger connected with the armature, a spring-biased valve body on which the plunger acts, a non-magnetic flange sleeve which guides the armature, a coil, a magnetic pole disc located opposite to the flange sleeve relative to the armature and attracting the armature with the plunger, the non-magnetic flange sleeve and the magnetic pole disc being interchangeable, and a spring which acts upon the armature, and is supported against the pole disc.
    Type: Grant
    Filed: July 20, 1987
    Date of Patent: July 12, 1988
    Assignee: Robert Bosch GmbH
    Inventor: Alwin Stegmaier
  • Trailer lock
    Patent number: 4756172
    Abstract: A trailer lock and more specifically to an anti-theft device for use with boat trailers or other trailers having a tongue with a ball socket thereon for engagement with a hitch ball connected to a towing vehicle. The lock includes a hitch ball mounted on top of a vertically adjustable support stand with the ball being received in the ball socket on the trailer tongue. The support stand includes a pivotal lock member which includes a portion closely overlying the upper surface of the ball socket with a padlock assembly securing the lock member in locking position. A lock guard is provided to protect the padlock assembly by preventing easy access to the padlock assembly by bolt cutters or other similar cutting implements.
    Type: Grant
    Filed: July 6, 1987
    Date of Patent: July 12, 1988
    Assignee: Robert Welborn Hightower
    Inventor: Marcus S. Weaver
  • Measuring sensor for determining the oxygen content in gases
    Patent number: 4756885
    Abstract: A combination of a measuring sensor and protector having a measuring sensor with a housing and having an elongated cup-like protective pipe engaged with the housing. The pipe has a bottom having a convex shape with an inlet opening. The pipe also has at least one outlet opening spaced away from the bottom. A deflector extends inward from the pipe at an acute angle relative to a longitudinal axis of the pipe and away from the bottom so that when gas flows longitudinally within the pipe from the inlet opening, the gas is deflected by the deflector to flow around the deflector to the at least one outlet opening. The bottom also has a boss-like bulging portion projecting outward to form the inlet opening so as to reduce contamination of the measuring element by preventing solid particles in the gas from entering inside the pipe.
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: July 12, 1988
    Assignee: Robert Bosch GmbH
    Inventors: Lothar Raff, Helmut Weyl, Hans-Martin Wiedenmann
  • Eccentric grinder with means for changing a grinding motion
    Patent number: 4754575
    Abstract: The eccentric grinder with an eccentric drive and a drive, which provides a rolling motion of two enagageable gear toothings, has gear toothings provided on the grinding disk and on the housing, respectively of the eccentric grinder. Some toothings are concentrical to the drive shaft, while the toothing on the grinding disk is eccentrically supported relative to the drive shaft. The grinder has at least three different grinding disks, of which one has the gear toothing engageable with one of the toothings on the housing and thus can carry out, due to the operation of the shaft, a predetermined grinding motion. The second grinding disk has a toothing for engaging with another toothing provided on the housing, whereby another grinding motion is obtained. The third grinding disk has no toothing and its grinding motion is obtained from the eccentric drive only and adjusted to a counter pressure force.
    Type: Grant
    Filed: March 24, 1987
    Date of Patent: July 5, 1988
    Assignee: Robert Bosch GmbH
    Inventor: Helmut Schneider
  • Dynamo electric machine with low-noise operating characteristics
    Patent number: 4755698
    Abstract: Operating noise of a dynamo electric machine, and particularly a three-phase vehicular-type alternator, can be reduced by changing the reluctance or permeability of the magnetic path between rotor and stator of adjacent stator teeth by splitting the stator teeth to introduce additional radially extending gaps in the stator teeth or by distributing, non-uniformly or uniformly, ferromagnetic slot closers about the circumference of the stator slots while leaving, adjacent a stator slot with a magnetic closer, open stator slots or slots covered only with non-magnetic slot cover elements, such as treated paper, cardboard, or the like.
    Type: Grant
    Filed: February 25, 1987
    Date of Patent: July 5, 1988
    Assignee: Robert Bosch GmbH
    Inventors: Manfred Frister, Istvan Ragaly
  • Sinter alloys based on high-speed steel
    Patent number: 4755222
    Abstract: Sinter alloys based on high-speed steel are proposed, which can be used for producing wearing parts in machinery and vehicle contruction. The sinter alloys comprise a mixture of a powder of a high-speed steel and an unalloyed or a low-alloy iron powder. While the high-speed steel powder forms liquid phases upon sintering, the mixture components can be drawn from either the group of iron alloys that do not form liquid phases or the group of iron alloys that do form liquid phases. The proposed alloys cannot be sintered to the density of the high-speed steels, nor do they quite attain the strength values of such steels, but in the cases where these limit values for strength are not critical they have the decisive advantage that they can be sintered without deformation in standard protective gas furnaces lacking extreme temperature constancy and that they furthermore exhibit only very slight shrinkage.
    Type: Grant
    Filed: February 17, 1987
    Date of Patent: July 5, 1988
    Assignee: Robert Bosch GmbH
    Inventors: Barbara Heinze, Hans-Peter Koch, Gundmar Leuze, Hans Obenaus
  • Integrated circuit Darlington transistor power stage incorporating various circuit components integrated on the same substrate
    Patent number: 4755694
    Abstract: An integrated anode power stage using one or more Darlington transistors combinations is constituted for currents exceeding 5 amperes and voltages exceeding 200 volts. On a common semiconductor substrate there are provided, in addition to the Darlington circuit or circuits a large number of peripheral components, both active and passive, such as are required for protection, regulation and turning on or off of the final stage for operating an ignition coil in a motor vehicle. By providing these components in basins of the same conductivity type as the base of the power transistor a unit is provided that is economical to make as well as compact and reliable.
    Type: Grant
    Filed: July 1, 1987
    Date of Patent: July 5, 1988
    Assignee: Robert Bosch GmbH
    Inventors: Bernd Bodig, Lothar Gademann, Gerd Hohne, Hartmut Michel
  • Device for connecting two tool parts
    Patent number: 4755077
    Abstract: In a device for connecting two tool parts (1, 4) one tool part (1) is provided with a cylindrical fitting plug (2) which can be inserted in a fitting bore (5) provided in the other tool part (4). The fitting plug (2) has a transverse bore (6) with a radially displaceable tensioning pin (7) therein, which carries extensions (8) at its two ends, which engage in conical recesses (11) of two diametrically opposite tensioning elements (9, 10) arranged in the other tool part (4). The extensions (8) of the tensioning pin (7) have a hemispherical peripheral surface (8a) whose radius of curvature (R) as well as the apex angle (.alpha.
    Type: Grant
    Filed: September 10, 1987
    Date of Patent: July 5, 1988
    Assignee: Komet Stahlhalter-und Werkzeugfabrik Robert Breuning GmbH
    Inventor: Otto Eckle
  • Drain closure
    Patent number: 4754895
    Abstract: A drain closure valve is disclosed having a wide mouth body member including a substantially cylindrical body annular wall portion with a fluid passageway therethrough and having a cap for sealing engagement therewith. The cap includes a substantially cylindrical cap annular wall portion and a bottom wall portion, a stepped annular ridge which defines a ridge upper annular wall portion and a ridge lower annular wall portion joined by a ridged upper horizontal wall portion, and threads affixed to the annular wall portions of the cap and the body member allowing the cap to threadably engage the body member. The seal comprises a protrusion extending outwardly from the cap annular wall portion which sealingly engages against the lumen of the body annular wall portion.
    Type: Grant
    Filed: May 29, 1986
    Date of Patent: July 5, 1988
    Assignee: Halkey-Roberts Corporation
    Inventors: George E. Lardner, Jacek Weinheimer
  • Antiglare headlamp particularly a rectangular reflector type headlamp for motor vehicles
    Patent number: 4755919
    Abstract: The reflection surface of a rectangular reflector for a lower beam headlamp is composed of four sectors delimited by transition lines. Two diametrically opposed left and right sectors (11, 12) form a part of a paraboloid projecting a hot light spot. The diametrically opposed upper and lower sectors (13, 14) are part of a paraboloid-ellipsoid defining a parabola in its vertical center section and an ellipsis in its horizontal center section. The latter sectors project a light spot having a broad light dispersion and an increased front field illumination. The reflected light beam corresponds substantially to a dimmed lower light beam to be projected on the road so that a light dispersing glass of the headlamp does not require any optical means for light beam adjustment.
    Type: Grant
    Filed: August 19, 1987
    Date of Patent: July 5, 1988
    Assignee: Robert Bosch GmbH
    Inventors: Gerhard Lindae, Rainer Neumann, Peter Perthus
  • Electrical switch for starters
    Patent number: 4755781
    Abstract: An electromagnetic switch for starting mechanisms of internal combustion engines whose switching pin (22), which carries the contact bridge (29) for the main current contacts (13 and 14), is provided with a guide sleeve (25) with which the switching pin (22) is supported and guided in a magneto armature (15) and in a magnetic core (2). The switching pin (22) is supported at springs (21 and 36) and, accordingly, at the magneto armature (15) and the magnet core (2) by means of the guide sleeve (25). An armature return spring (21) supported at the magneto armature (15) contacts the guide sleeve (25). A stronger pressure spring (36) supported at the magnet core (2) contacts the guide sleeve (25). The magneto armature (15) and the switching pin (22), together with the guide sleeve (25), can move relative to one another.
    Type: Grant
    Filed: June 4, 1987
    Date of Patent: July 5, 1988
    Assignee: Robert Bosch GmbH
    Inventor: Karl-Heinz Bogner
  • Anchor for erosion resistant refractory lining
    Patent number: 4753053
    Abstract: A support anchor is provided for anchoring a castable or plastic refractory material to a processing vessel wall. The support anchor of the present invention includes a flat center member portion and portions integrally formed with and extending transversely with respect to each end of the center member. Attachment members are formed at an inner edge of the support body so that the support body is mounted at a spaced position from the vessel wall. Plural openings are formed in the support body to allow flow of refractory material during installation to aid in at least partial bonding of the installed refractory and the support anchor. Anchoring members are mounted adjacent the openings in the support body to provide anchoring support submerged within the installed refractory material.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: June 28, 1988
    Assignee: Robert J. Jenkins
    Inventor: Nolan E. Heard
  • Sensor for scanning physical processes in internal combustion engines
    Patent number: 4753109
    Abstract: A sensor for scanning physical processes in a combustion chamber of an internal combustion engine includes a pressure-sensitive element formed by two sapphire small parts one of which has a recess and forms a pressure diaphragm to which resistors are applied. The sensor is formed by means of the silicon-on-sapphire technology.
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: June 28, 1988
    Assignee: Robert Bosch GmbH
    Inventor: Erich Zabler
  • Flower pot holder
    Patent number: D296760
    Type: Grant
    Filed: January 13, 1987
    Date of Patent: July 19, 1988
    Assignee: Robert J. Lis
    Inventor: Martin T. McGrath
  • Food processor
    Patent number: D296860
    Type: Grant
    Filed: July 29, 1985
    Date of Patent: July 26, 1988
    Assignee: Robert Krups Stiftung & Co. KG.
    Inventor: Rudolf Maass
  • Food processor
    Patent number: D296976
    Type: Grant
    Filed: July 29, 1985
    Date of Patent: August 2, 1988
    Assignee: Robert Krups Stiftung & Co. KG.
    Inventor: Rudolf Maass