Patents Represented by Attorney Russell E. Baumann
  • Patent number: 6763724
    Abstract: A port fitting is formed with a closed, pedestal end forming a diaphragm on which a strain gauge sensor is mounted. A support member is received on the pedestal end and is formed with a flat end wall having an aperture aligned with the sensor. A portion of a flexible circuit assembly is bonded to the flat end wall with a connector disposed over the support member. A tubular outer housing is fitted over the several components and its bottom portion is welded to the port fitting while its top portion places a selected load on an O-ring received about the connector as well as internal components of the transducer. In one embodiment, a loading washer (72a) is disposed over the O-ring on a first portion (70a) of a two portion connector (70) and retained by a second connector portion (70b). Protrusions (76a1) formed on the tubular housing (76) pass through cut-outs in the second connector portion to place a load on the loading washer.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: July 20, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: David J. DiPaola, Hidde Walstra, Timothy J. Breitenbach, Peter A. Weise
  • Patent number: 6765391
    Abstract: An ASIC (14, 14′, 14″) conditions two independent outputs (VINM, VINP) of a full Wheatstone piezoresistive bridge (12) in separate conditioning paths. Each path is provided with a bridge supply voltage (VHB1, VHB2) which can serve as a temperature related input signal to respective offset and gain compensation control circuits. The half bridge outputs are inputted to respective amplifiers (U1, U2) along with a selected percentage of the temperature dependent bridge supply voltage. The outputs of the amplifiers provide a signal proportional to respective half bridge output voltage. In one embodiment, the output of the amplifier (U2) in one conditioning path of one half bridge is connected to the input of an amplifier (U4) in the other conditioning path to provide a signal in the one path proportional to the Wheatstone bridge differential output voltage and in the other path a signal proportional to the Wheatstone half bridge output voltage.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: July 20, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: David L. Corkum, Keith W. Kawate, Thomas R. Maher
  • Patent number: 6756876
    Abstract: A current interrupter (10, 10′) includes bimetallic member (18) as a switching member having a formed portion (18a) providing snap action movement between oppositely dished configurations. An integrally formed extended length portion (18b) having a stiffening feature extends from the formed portion and mounts a movable contact at its free end. Stiffening feature embodiments include folded opposed marginal edges and one or more longitudinally extending ribs formed in the extended length portion. In one embodiment, the bimetallic member is cantilever mounted in a housing member (14). In another embodiment, a bimetallic member (18D) has first and second extended length portions (18b) extending from opposite sides of a formed portion to provide a circuit interrupter with a double break system.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: June 29, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Steven K. Sullivan, Karl A. Kohm, Kevin R. French
  • Patent number: 6749443
    Abstract: A socket (10) has a base member (20), a cover member (30) which is mounted for alternating motion toward and away from base member (20), a plurality of contacts (40) having an end fixed to the base member (20), a contact regulating member (50) that regulates the position of the movable ends (42, 92) of the contact and an adaptor (60) having a seating surface, the adaptor which is mounted for alternating motion toward and away from the contact regulating member (50). When adaptor (60) is removed from the contact regulating member, the movable ends of the contacts do not protrude through the seating surface and when adaptor (60) has been moved toward the contact regulating member (50), the movable ends of the contacts protrude from each through-hole (65) of adaptor (60) for engagement with the solder balls of a BGA device (11), placed on the adaptor (60). The cover member is linked to the base member and latches (70) having a BGA device pressing tip (72) are rotatable with movement of the cover.
    Type: Grant
    Filed: December 6, 2002
    Date of Patent: June 15, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Hideki Sano, Kiyokazu Ikeya
  • Patent number: 6742395
    Abstract: A port fitting (102) is formed with a closed, pedestal end forming a diaphragm (102a) on which a strain gauge sensor is mounted. A support member (106) is received on the pedestal end and is formed with a flat end wall (106a) having an aperture (106d) aligned with the sensor. A circuit assembly (108) is bonded to the flat end wall and the sensor wire bonded to the electronic circuit. A cover member (114) placed on the support member, is provided with a cavity for a metal shield member (118) fitted inside the cover member before assembly. The shield member is formed with spring members (118b) extending outside the perimeter of the cover member. The cover member is formed with circular cavities (114d) extending in an axial direction to provide seating for contact spring members (117), making electronic contact to the sensor electronics and protruding beyond the body of the cover member. The cover member is also fitted with a circular elastomer gasket member (116), providing an environmental seal.
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: June 1, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Marc Gerard Johan Borgers, Thomas R. Maher, Timothy M. McBride, Paulus Thomas Johannes Gennissen
  • Patent number: 6720749
    Abstract: A three-phase motor protector uses two toroids to monitor all three phases of a three-phase motor. Current and phase loss are monitored directly in phases A and B while the phase C current level is determined by analysis of the phase A and B relationship. Current is induced into the phase A and B toroids from the motor supply lines with the resulting wave fed to an input of high-gain inverting amplifiers to provide A and B square waves which are inputted to separate channels of a microprocessor (U3). The square waves are processed by an AND gate providing an output square wave with a 16.66 percent duty cycle for normal operation. Upon loss of phase C the ANDed result is a digital low since the individual waves of phases A and B become an inverse of one another. In order to prevent nuisance tripping an AND output of less than 2 percent duty cycle is treated as a phase loss.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: April 13, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Timmy M. Ta, Marc P. Dupre
  • Patent number: 6715357
    Abstract: A port fitting is formed with a closed, pedestal end forming a diaphragm on which a strain gauge sensor is mounted. A support member is received on the pedestal end and is formed with a flat end wall having an aperture aligned with the sensor. A portion of a flexible circuit assembly is bonded to the flat end wall with a connector disposed over the support member. A tubular outer housing is fitted over the several components and its bottom portion is welded to the port fitting while its top portion places a selected load on an O-ring received about the connector as well as internal components of the transducer. In one embodiment, a loading washer (72a) is disposed over the O-ring on a first portion (70a) of a two portion connector (70) and retained by a second connector portion (70b). Protrusions (76a1) formed on the tubular housing (76) pass through cut-outs in the second connector portion to place a load on the loading washer.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: April 6, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Hironari Ishiguro, Yasushi Yamabayashi, Dale R. Sogge
  • Patent number: 6710695
    Abstract: A pushbutton resettable circuit breaker is shown having features to prevent manual opening by simply pulling outwardly on the pushbutton. In one embodiment, the pushbutton (16) is formed with slots (16b) which are configured to provide a reaction surface essentially inaccessible without a special purpose contact opening tool (30). The tool is provided with portions that are insertable into the slots and into engagement with the reaction surfaces for pulling the pushbutton out and manually opening the contacts. In a second embodiment, a small aperture 16k is formed through the rating tab and top and wall of the button and in alignment with a movable plunger (28). A special purpose contact opening tool (32, 34) can be inserted through the aperture to apply a force to the plunger and mechanically trip the circuit breaker.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: March 23, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Christian V. Pellon, Karen M. Litwin, Roland G. Morin, Peter G. Berg
  • Patent number: 6687642
    Abstract: An application specific integrated circuit or ASIC (MSC) is connected to a plurality of bridge type sense elements (1-6) for analog multiplexing (10a, 10b, 10c) the outputs from a selected sense element to a common signal conditioning path (10f). The bridge type sense elements are biased through an electronically programmable resistor (10d1) to derive a temperature signal. The signal conditioning path provides electronically programmable correction for offset and gain proportional to the sensed condition, e.g., fluid pressure. Complete sensor characterization data provided at the time of manufacture is stored in non-volatile memory (10h) which is downloaded to a host controller (12) on command. The ASIC also includes diagnostic test bridges (BR1, BR2) for diagnosing ASIC faults and a signal diagnostic path (10m) for diagnosing sense element and sense element connection faults.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: February 3, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Thomas R. Maher, John A. Powning
  • Patent number: 6674620
    Abstract: A hermetic motor protector (10) has a non-current carrying snap-acting thermostatic disc (26) freely disposed on a disc seat (22a) having a tab (22c) projecting through a centrally located aperture (26a) in the disc. An outer peripheral portion of the disc is received under a leg (22e) of the bracket limiting upward motion of the disc at that location and causing the disc to act as a lever pivoting about the disc seat (22a) as a fulcrum so that the outer peripheral portion of the disc diametrically opposite to leg (22e) engages a motion transfer bump (28d) formed on a movable contact arm cantilever mounted on leg (22e) when the disc snaps from its normally contacts engaged configuration to its opposite dished contacts open configuration when the disc is heated to its actuation temperature by a heater element (24) along with heat conducted from a motor with which the protector is used.
    Type: Grant
    Filed: October 4, 2001
    Date of Patent: January 6, 2004
    Assignee: Texas Instruments Incorporated
    Inventors: Louis R. Lamborghini, Gary K. Maus
  • Patent number: 6672170
    Abstract: A port fitting is formed with a closed, pedestal end forming a diaphragm on which a strain gauge sensor is mounted. A support member is received on the pedestal end and is formed with a flat end wall having an aperture aligned with the sensor. A portion of a flexible circuit assembly is bonded to the flat end wall with a connector disposed over the support member. A tubular outer housing is fitted over the several components and its bottom portion is welded to the port fitting while its top portion places a selected load on an O-ring received about the connector as well as internal components of the transducer. In one embodiment, a loading washer (72a) is disposed over the O-ring on a first portion (70a) of a two portion connector (70) and retained by a second connector portion (70b). Protrusions (76a1) formed on the tubular housing (76) pass through cut-outs in the second connector portion to place a load on the loading washer.
    Type: Grant
    Filed: January 13, 2003
    Date of Patent: January 6, 2004
    Assignee: Texas Instruments Incorporated
    Inventor: David J. DiPaola
  • Patent number: 6666691
    Abstract: A socket (1) has a base (2) on which rows of contact pins 4 are arranged, the contact pins being elastically deformable in the vertical direction, an adaptor (5) having rows of contact holes (5d) arranged extending through a seating surface (5c) and which is capable of vertical movement relative to the base (2) so that contact tips (4a) of contact pins (4) can move in respective contact holes (5d). Latches (21) are arranged to be able to press the IC package on the seating surface (5c) of the adaptor (5) and a vertically movable regulator (7) is arranged at a selected position relative to adaptor (5) when stop surfaces (7e) of the regulator are engaged with a part (4e) of the contact pins (4) so as to regulate the position of the contact tips (4a) in the contact holes (5d).
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: December 23, 2003
    Assignee: Texas Instruments Incorporated
    Inventor: Kiyokazu Ikeya
  • Patent number: 6646446
    Abstract: A full Wheatstone bridge sensor has conditioning electronics of an ASIC connected thereto. Two independently controlled diagnostic switches (S1, S2) in the ASIC are commonly connected to one of the bridge output nodes. The first diagnostic switch connects first resistor between the bridge output node and bridge supply voltage and the second diagnostic switch connects a second resistor between the bridge output and bridge ground. The first diagnostic switch closes during a first diagnostic waveform phase and opens during all other phases of operation. The second diagnostic switch closes during a second and third waveform phase and opens during all other phases of operation. The diagnostic waveforms are used to test major signal conditioning and fault reporting paths of the ASIC.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: November 11, 2003
    Assignee: Texas Instruments Incorporated
    Inventors: Thomas R. Maher, David L. Corkum
  • Patent number: 6642711
    Abstract: A differential pulse transformer having a drive coil (10a) and differential sense coils (10b) are disposed on a planar surface with a target (10e, 10f) movable over the sense coils to cause an imbalance in magnetic field when a large di/dt pulse is generated in the drive coil. A detection circuit senses the imbalance and provides a digital output accurately identifying the position of the target. Coil and target embodiments include relatively small secondary coils and relatively long targets (10b, 10e/10f; 12b, 12e/12f and 14b) and relatively large secondary coils and short targets (16b, 16c; 18b, 18c; 20b and 22b).
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: November 4, 2003
    Assignee: Texas Instruments Incorporated
    Inventors: Keith W. Kawate, Gerhard A. Foelsche, Lidu Huang, Gerald H. Fleischfresser
  • Patent number: 6642832
    Abstract: A circuit breaker (10) has a current carrying bimetallic element (18) which bends upon self-heating and upon being subjected to a selected overload current transfers motion to a connecting plate (32) which displaces a latch surface (42b) from a catch (34a) of a bell crank mechanism (34) allowing a spring biased operating member (28) to move movable contact means (12) out of contact engagement with stationary contact means (14) thereby tripping the circuit breaker. An arc sensing circuit (52) is coupled to the load circuit and upon sensing selected arcs causes an arc responsive actuator (56, 62) to be energized to transfer motion to the latch (42) to trip the circuit breaker.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: November 4, 2003
    Assignee: Texas Instruments Incorporated
    Inventors: Christian V. Pellon, Peter G. Berg
  • Patent number: 6633010
    Abstract: A pressure switch 1 of this invention comprises a base electrode 2, a terminal 3, a disc 4 and a diaphragm 5. The base electrode 2 has a switching chamber 7 for inserting the contact part 3a of the terminal 3. The switching chamber 7 is sealed with an insulation member at one side. The disc 4 is formed so as to be able to contact with the contact part 3a of the terminal while it is connected to the base electrode 2 and to be able to inverse under a predetermined magnitude of pressure. The diaphragm 5 is made of a metal and is fixed to the base electrode 2 so as to keep vacuum of the switching chamber 7 including the contact part 3a and the disc 4 by sealing the opening of the switch chamber 7 at other side.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: October 14, 2003
    Assignee: Texas Instruments Incorporated
    Inventors: Shuji Tanaka, Yoshihiko Mikawa
  • Patent number: 6614247
    Abstract: A socket (10) has a plurality of contacts (13) arranged in base (11). Each contact has one arm (13a) for contacting a solder ball of an electronic package (2). A slider (12) has a seat (12a) for package (2), a plurality of terminal receiving holes (12b), a terminal engagement surface (12c) formed at each terminal receiving hole for engagement with a respective solder ball and a plurality of contact receiving holes (12d). When slider (12) is moved in one directions package (2) can be seated with each ball disposed in a respective terminal receiving hole. When the slider returns, each ball is elastically contacted between an arm (13a) and a terminal engagement surface (12c).
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: September 2, 2003
    Assignee: Texas Instruments Incorporated
    Inventors: Kiyokazu Ikeya, Kyozo Katayose
  • Patent number: 6570398
    Abstract: A socket (10) has a cover (14) pivotably mounted to a base (12). The base is formed with a seat (12a) for mounting a semiconductor device on a contact mounting plate (18). A locking mechanism (20) for locking the cover in the closed position includes an over center linkage mechanism interacting with a locking pin (20a). In a modified embodiment, the locking mechanism is provided with a pivotable locking member (27) to provide either manual or automated operation. The cover (14) of socket (10) also comprises an integrally formed heat sink. In another embodiment (10′), a separate heat sink (30) is independently mounted on the cover (28) provided with an aperture through the cover in which the heat sink is slidably mounted.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: May 27, 2003
    Assignee: Texas Instruments Incorporated
    Inventors: Raymond F. Murphy, Scott A. Leavitt, James A. Forster
  • Patent number: 6553840
    Abstract: A linear displacement sensor (10) has a capacitive transducer (24) having a flexible diaphragm (24c) disposed in a housing (12) which also slidingly mounts a plunger (18) movable toward and away from the diaphragm. The plunger has a spring seating end slidably received in a hollow tubular button (14) with a coil spring disposed in the tubular button between the spring seating end of the plunger and a spring seat of the button. Movement of the button caused by an element whose movement is to be monitored causes a change in the force applied to the diaphragm which is proportional to the movement of the button to provide a corresponding output signal by means of signal conditioning electronics (28) disposed in the housing.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: April 29, 2003
    Assignee: Texas Instruments Incorporated
    Inventors: John A. Fournier, John Z. Buckley, III
  • Patent number: 6548924
    Abstract: A protective device (3) for a hermetic type electromotively driven compressor (1a) includes a protector assembly (30) having a housing (32) with an electric current fuse (34) which detects a predetermined over-current. The housing (32) comprises an electrically insulating skirt member (31) formed so as to block a conductive part on the side facing an external connection terminal. By forming the electrically insulating skirt member (31) of housing (32) for a hermetic type electromotively driven compressor, insulation distance between a conductive part such as the electric current fuse (34) and an external conductive part such as a metal wall part (21) is set to be 9.5 mm or more.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: April 15, 2003
    Assignees: Texas Instruments Incorporated, Hitachi, Ltd.
    Inventors: Hideharu Furukawa, Yoshihiko Ishikawa, Toshio Shimada, Wataru Sugawara