Patents by Inventor Peter Heimlicher

Peter Heimlicher 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).

  • Publication number: 20050099176
    Abstract: A rope position sensor for the surveillance of the position of the traction or carrying rope of a transport installation on a grooved pulley comprises an inductive distance measuring unit capable of emitting an alternating magnetic field and of detecting the attenuation of that magnetic field by the presence of the rope 1 in a proximity zone. The sensor is adapted to detect the rope in at least three proximity zones (z1, z2, z3) and to produce an output signal containing information indicating the proximity zone in which the rope is being detected to indicate the position of the rope at the pulley.
    Type: Application
    Filed: November 5, 2004
    Publication date: May 12, 2005
    Inventors: Peter Heimlicher, Charles Rheme
  • Patent number: 6864964
    Abstract: The optical distance detecting or measuring device comprises a light source with an emitting optic for projecting a light beam according to the axis of the emitting optic onto a target to be measured and a first detector defining the receiving axis contained in the same reference plane as the emitting axis. The device comprises at least a second detector that is aligned with the first detector on an axis contained in a plane that is inclined at an angle ? with respect to the reference plane, said angle being comprised between 10° and 170°. Alternatively, two emitters may be arranged in an inclined plane and one receiver in the reference plane. This arrangement allows a significant improvement of the performance of such a device.
    Type: Grant
    Filed: July 3, 2003
    Date of Patent: March 8, 2005
    Assignee: Optosys SA
    Inventors: Charles Rhême, Peter Heimlicher
  • Patent number: 6838655
    Abstract: Photoelectric proximity switch for detecting the presence of an object in a monitored area. A light pulse transmitter emits transmitting light pulses into the monitored area. The pulses are triggered by an output signal of a random signal generator or a pseudo-random signal generator and are emitted with a time interval between them. A light receiver is arranged in relation to the light pulse transmitter and to the monitored area such that in the absence of an object to be detected in the monitored area, the receiver receives essentially no light from the light pulse transmitter, but in the presence of an object to be detected in the monitored area, it receives such light from the light pulse transmitter due to reflection that a receiving signal evaluating device connected to the light receiver and to random signal generator or the pseudo-random signal generator delivers an object detection signal.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: January 4, 2005
    Assignee: Optosys S.A.
    Inventor: Peter Heimlicher
  • Publication number: 20040211886
    Abstract: The low noise light receiver comprises
    Type: Application
    Filed: April 1, 2004
    Publication date: October 28, 2004
    Applicant: Optosys SA
    Inventor: Peter Heimlicher
  • Publication number: 20040099744
    Abstract: The antenna and the electronic control circuit of the transponder are contained in a totally hermetical metallic enclosure. The antenna of the reader is protected from the environment by a metallic front plate that is integral with the enclosure containing the electronic control circuit. In a preferred embodiment, the enclosure is hermetically tight. These embodiments fulfill the longstanding need to obtain completely tight elements that are resistant to industrial aggressions.
    Type: Application
    Filed: November 20, 2003
    Publication date: May 27, 2004
    Applicant: Optosys SA
    Inventors: Johan Cuperus, Peter Heimlicher
  • Publication number: 20040066499
    Abstract: The optical distance detecting or measuring device comprises a light source with an emitting optic for projecting a light beam according to the axis of the emitting optic onto a target to be measured and a first detector defining the receiving axis contained in the same reference plane as the emitting axis. The device comprises at least a second detector that is aligned with the first detector on an axis contained in a plane that is inclined at an angle &agr; with respect to the reference plane, said angle being comprised between 10° and 170°. Alternatively, two emitters may be arranged in an inclined plane and one receiver in the reference plane. This arrangement allows a significant improvement of the performance of such a device.
    Type: Application
    Filed: July 3, 2003
    Publication date: April 8, 2004
    Applicant: Optosys SA
    Inventors: Charles Rheme, Peter Heimlicher
  • Patent number: 6654519
    Abstract: The optical device comprises an emitter optic for projecting a light beam onto an object, and a receptor optic for projecting the reflected light onto a detector. The emitter optic and the receptor optic each comprise a dome disposed in such a manner that the light beam passes through the dome in a plane which is parallel to the plane surface of the dome. This allows a very compact design which is particularly suitable for reflection detectors of small dimensions.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: November 25, 2003
    Assignee: Optosys SA
    Inventors: Charles Rheme, Peter Heimlicher
  • Publication number: 20030116699
    Abstract: Photoelectric proximity switch (11) for detecting the presence of an object (12) in a monitored area.
    Type: Application
    Filed: December 4, 2002
    Publication date: June 26, 2003
    Inventor: Peter Heimlicher
  • Publication number: 20020097959
    Abstract: The optical device comprises an emitter optic for projecting a light beam onto an object, and a receptor optic for projecting the reflected light onto a detector. The emitter optic and the receptor optic each comprise a dome disposed in such a manner that the light beam passes through the dome in a plane which is parallel to the plane surface of the dome. This allows a very compact design which is particularly suitable for reflection detectors of small dimensions.
    Type: Application
    Filed: January 11, 2002
    Publication date: July 25, 2002
    Applicant: Optosys SA
    Inventors: Charles Rheme, Peter Heimlicher
  • Patent number: 6133654
    Abstract: An inductive proximity switch is provided which comprises a coil, means for supplying the coil with periodic transmitting current pulses, and means for processing signals which correspond to voltages induced in said coil after the end of a transmitting current pulse by the decaying current which previously flows in the detected body due to the voltage induced therein by the transmitting current pulse. In order to improve the robustness of the proximity switch so that it is suitable for durable use in an aggressive environment, the coil, the means for supplying the coil with a periodical transmitting current, and the signal processing means are arranged in a cylindrical housing which is closed on the side of the active surface of the proximity switch and consists of a metal which is not ferromagnetic and whose specific electric resistance is relatively high.
    Type: Grant
    Filed: February 3, 1999
    Date of Patent: October 17, 2000
    Assignee: Optosys SA
    Inventor: Peter Heimlicher
  • Patent number: 6133988
    Abstract: The device for the measurement of distances and of the angle of incidence of a light beam comprises an optical emitting system in order to project the light beam onto the object to be measured, and an optical receiving system in order to project the reflected light onto position detectors. The optical receiving system comprises two prisms which refract the reflected light beam with an angular compression and expansion, respectively, thus allowing to reduce the dimensions and the sensitivity of a detector for the measurement of a given measuring range.
    Type: Grant
    Filed: February 2, 1999
    Date of Patent: October 17, 2000
    Assignee: Optosys SA
    Inventors: Charles Rheme, Peter Heimlicher
  • Patent number: 6130489
    Abstract: An inductive proximity switch includes a coil that is supplied with periodic transmitting current pulses. Signals which correspond to voltages induced in the coil after the end of a transmitting current pulse by the decaying current which previously flows in the detected body due to the voltage induced therein by the transmitting current pulse are then processed. The coil is supplied with transmitting current pulses whose direction alternates periodically. The current flow pattern is such that in the first half of a period of the current supplied to the coil, the transmitting current delivered to the coil flows in a first direction and substantially only during a first interval which is shorter than one half of the period of the transmitted pulses. The transmitted current subsequently decays during a time interval and is negligibly small during the remaining time of the first half of the period.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: October 10, 2000
    Assignee: Optosys SA
    Inventor: Peter Heimlicher
  • Patent number: 6031430
    Abstract: In an oscillator comprising a resonant circuit (L, C, R.sub.CU) and an amplifier circuit (V, R.sub.1, R.sub.2, R.sub.3) connected as a negative resistance (R.sub.n), a direct current source (I.sub.1) is connected in series with the resonant circuit (L, C, R.sub.CU). In this way, a signal (U.sub.CU) is provided being a measure for the resistance of the oscillator circuit coil (L). By using this signal (U.sub.CU), a control circuit (V.sub.1, M; V.sub.2, V.sub.3, M) controls the negative resistance (R.sub.n) inversely proportional to the resistance (R.sub.CU) of the oscillator circuit coil (L). This affords a simple stabilization of the temperature behavior of the oscillator circuit (L, C, R.sub.CU) and allows the low price manufacture of inductive proximity switches having a great switching distance which function safely in a broad temperature range.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: February 29, 2000
    Assignee: Optosys SA
    Inventor: Peter Heimlicher
  • Patent number: 5767444
    Abstract: A ceramic portion is inserted in the front side of the housing envelope by shrinking. At the the junction of these parts, a sealing layer, preferably a galvanized copper layer, is applied plied which ensures a connection which under the resulting pressure is impermeable to gases and humidity. The ceramic portion is exposed to a strong radial pressure prestress with the result that the tensile stress of the ceramic portion is reduced and thus the pressure resistance thereof is increased under the effect of an axially acting external pressure.
    Type: Grant
    Filed: July 26, 1995
    Date of Patent: June 16, 1998
    Assignee: Optosys AG
    Inventor: Peter Heimlicher
  • Patent number: 5675143
    Abstract: The use of a single concave mirror (1) serving as an optical focusing and directing element for a proximity switch allows an increased sensitivity at equal construction size or a substantial reduction in the construction size with equal sensitivity. In a preferred embodiment, the concave mirror is divided into two halves (3, 4) by a supporting plate (2) for the light source (5) and the light sensor (6), the halves (3, 4) of the mirror serving the purpose of directing the emitted light (8) and focusing the reflected light (9) onto the light sensor. In order to increase the resistance to difficult environmental conditions, the concave mirror (1) or its portions (3, 4) can be filled with a substance which is transparent to the light of the light source (5). Metallized plastics material is a suitable material for the mirror, especially in combination with the mentioned filling substance.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: October 7, 1997
    Assignee: Optosys AG
    Inventor: Peter Heimlicher
  • Patent number: 4942372
    Abstract: The temperature dependency of an oscillator can be reduced by a method and circuit that uses two positive feedback paths to provide the positive feedback necessary for maintaining the oscillation of an LC-oscillating circuit. One of the two feedback paths compensates the temperature dependent influences while the other compensates temperature independent influences.
    Type: Grant
    Filed: November 17, 1988
    Date of Patent: July 17, 1990
    Inventor: Peter Heimlicher
  • Patent number: 4509023
    Abstract: A method of using the temperature coefficient of the copper resistance of an oscillating coil to compensate for the temperature coefficient of the quality factor of the same oscillating coil. To this end, a voltage proportional to the copper resistance of the oscillating coil is generated across the oscillating circuit. The oscillator according to the process comprises an oscillating coil which comprises a high frequency litz wire. In order to access the copper resistance of the coil one of the litz wires is separated from the other wire at a first terminal of the coil and separately connected to a second terminal of this coil. From this second terminal, the coil is seen as a bifilar coil. A constant alternating current source is connected to the second terminal in order to generates across the oscillating circuit a voltage proportional to the copper resistance of the coil. The oscillator is preferably used for proximity switches having relatively large switching distance.
    Type: Grant
    Filed: June 30, 1982
    Date of Patent: April 2, 1985
    Assignees: Contrinex S.A., Siemens Aktiengesellschaft
    Inventor: Peter Heimlicher
  • Patent number: 4041683
    Abstract: In a machine for coiling a filament-wire for incandescent lamps or gas discharge tubes, a support-wire is continuously fed through an axial bore of a high-speed spindle. A reel supplying the filament-wire is integral with the spindle near the outlet end of the bore where the filament-wire is helically wound on the support-wire after having passed over a guiding edge of an arm protruding from a rotor mounted for free rotation on the spindle. The guiding edge extends along a parabola having its focal point on a rim of the reel adjacent to the coiling location. A braking device acting on the rotor is automatically controlled for maintaining a constant tension on the filament-wire as a function of the decrease in the radius of supply of filament-wire on the reel.
    Type: Grant
    Filed: March 10, 1975
    Date of Patent: August 16, 1977
    Assignee: Gluhlampenfabrik A.G.
    Inventor: Peter Heimlicher