Patents Represented by Law Firm Marshall, O'Toole, Gerstein, Murray & Bicknell
  • Patent number: 5495163
    Abstract: A detector for detecting rotor position of a brushless generator having a motive power shaft, a permanent magnet generator (PMG) having a set of armature phase windings and a main generator portion having a set of armature phase windings includes a circuit coupled to the armature phase windings of the PMG for deriving a number of interval pulses per revolution of the motive power shaft. A circuit measures time periods between adjacent interval pulses and the measured time periods are converted into an indication of the angular position of the motive power shaft in accordance with a parameter of power delivered to one of the main generator portion armature phase windings.
    Type: Grant
    Filed: May 12, 1993
    Date of Patent: February 27, 1996
    Assignee: Sundstrand Corporation
    Inventors: Gregory I. Rozman, Albert L. Markunas, Michael J. Hanson
  • Patent number: 5495162
    Abstract: A detector for detecting rotor position of a brushless generator having a motive power shaft, a permanent magnet generator (PMG) having a set of armature phase windings and a main generator portion having a set of armature phase windings includes a circuit coupled to the armature phase windings of the main generator portion for deriving a number of interval pulses per revolution of the motive power shaft. A circuit measures time periods between adjacent interval pulses and the measured time periods are converted into an indication of the angular position of the motive power shaft in accordance with a parameter of power delivered to the main generator portion armature phase windings.
    Type: Grant
    Filed: May 12, 1993
    Date of Patent: February 27, 1996
    Assignee: Sundstrand Corporation
    Inventors: Gregory I. Rozman, Albert L. Markunas, Michael J. Hanson, Leland E. Weber
  • Patent number: 5493200
    Abstract: A control for a brushless generator operable in starting and generating modes supplies combined AC and DC power to an exciter field winding of the brushless generator during operation in the starting mode. The magnitude of a parameter of the AC power is decreased with increasing rotor speed during operation in the starting mode until a particular rotor speed is reached, following which only DC power is supplied to the exciter field winding.
    Type: Grant
    Filed: May 12, 1993
    Date of Patent: February 20, 1996
    Assignee: Sundstrand Corporation
    Inventors: Gregory I. Rozman, Albert L. Markunas, James A. Shippling
  • Patent number: 5367437
    Abstract: A mounting arrangement of the present invention is provided for packaging a plurality of multiple layer capacitors together. First and second coupling devices are coupled electrically to respective first and second electrodes of each multiple layer capacitor of the plurality of multiple layer capacitors. A clamping devices clamps the first and second coupling devices, the plurality of multiple layer capacitors, and an electrically insulating layer to a mounting surface so that the electrically insulating layer is between the first coupling devices and the mounting surface and so that the plurality of multiple layer capacitors are electrically connected in parallel between the first and second coupling devices.
    Type: Grant
    Filed: April 6, 1993
    Date of Patent: November 22, 1994
    Assignee: Sundstrand Corporation
    Inventor: W. Kyle Anderson
  • Patent number: 5358990
    Abstract: Aqueous coating compositions for forming elastomeric films around active cores (e.g., drugs) comprising a dispersion of pre-crosslinked polyorganosiloxane latex particles, colloidal silica particles, and a water-dispersible organic material (e.g., polyethylene glycol) are disclosed and claimed. The elastomeric films formed by the coating compositions are used to control the rate of release of an active agent in the cores into an aqueous environment. Methods of formulating the coating compositions and active cores coated with the coating compositions are also disclosed.
    Type: Grant
    Filed: February 11, 1993
    Date of Patent: October 25, 1994
    Assignee: Dow Corning Corporation
    Inventors: John T. Woodard, Martin C. Musolf, Patrick J. Miller
  • Patent number: 5355296
    Abstract: A switching converter includes first and second controllable switches, a power source coupled to the switches and a closed flux path. First and second primary windings are mutually inductively coupled through the closed flux path and are coupled to the first and second controllable switches, respectively. The first and second switches are operated together in synchronism and a secondary winding is inductively coupled with but electrically isolated from the first and second primary windings through the closed flux path. Each switch conducts only a portion of the power produced in the secondary winding and the problems of current sharing are avoided. Also, DC content that may be produced by the switches is blocked from the output.
    Type: Grant
    Filed: December 10, 1992
    Date of Patent: October 11, 1994
    Assignee: Sundstrand Corporation
    Inventors: Ming Kuo, P. John Dhyanchand
  • Patent number: 5325007
    Abstract: Electromotive apparatus comprising at least one winding (30) including a plurality of generally triangular coil turns (34). A plurality of generally triangular stator segments (55, 56, 57) are mounted within the coil turns (34). The winding is formed by a hollow conductor, and it is shaped for connection to a source of cooling fluid. A molded support (32) is fastened to the windings 30 and to the segments (55, 56, 57) for supporting the apparatus at its outer diameter.
    Type: Grant
    Filed: January 27, 1993
    Date of Patent: June 28, 1994
    Assignee: Sundstrand Corporation
    Inventors: John B. Huss, Mahesh Shah
  • Patent number: 5317299
    Abstract: A summing transformer having a core structure, first primary and secondary windings wound on the core structure for establishing a rotating electromagnetic field when the first primary winding is energized, and second primary and secondary windings wound on the core structure for establishing a rotating electromagnetic field when the second primary winding is energized, and wherein the second first and second secondary windings are connected together so that voltages induced therein are added.
    Type: Grant
    Filed: July 3, 1991
    Date of Patent: May 31, 1994
    Assignee: Sundstrand Corporation
    Inventors: P. John Dhyanchand, Jayant Vaidya, Rajhunath Mokadam, Richard Arbanella
  • Patent number: 5311419
    Abstract: A power converter for converting input AC power comprising N phase-to-phase input AC waveforms at a first frequency into overall output DC power, where N is an integer greater than two, includes N phase-to-phase AC/DC converters each receiving a phase-to-phase waveform and having outputs connected in series whereby the converter outputs are combined to develop the overall output DC power. The AC/DC converters are operated such that a parameter of the input AC power and a parameter of the overall output DC power are controlled.
    Type: Grant
    Filed: August 17, 1992
    Date of Patent: May 10, 1994
    Assignee: Sundstrand Corporation
    Inventor: Edwin J. Shires
  • Patent number: 5304422
    Abstract: A polyamide resin composition comprising: (a) 100 parts by weight of a polyamide; (b) from about 1 part to about 80 parts by weight of an aromatic polyamide fiber; (c) from about 3 parts to about 80 parts by weight of a polytetrafluoroethylene; and (d) from about 1 part to about 20 parts by weight of high-density polyethylene is disclosed. The polyamide resin composition can be molded into sliding members, like bearings, bushings and slide rails, that demonstrate excellent mechanical and physical properties, like low frictional force, low self-abrasion, and low abrasion to metals.
    Type: Grant
    Filed: September 19, 1990
    Date of Patent: April 19, 1994
    Assignee: Bando Chemical Industries, Ltd.
    Inventors: Takayoshi Tanabe, Takatoshi Ishigaki, Shuji Tsuchikawa, Shinichi Kimura
  • Patent number: 5230206
    Abstract: The invention provides a method and a system for making up consignments from articles supplied in packs. It consists essentially of a consignment-assembly unit (9) that supplies individually supplied articles via a sorter (10) having inward conveyors (30,31) to an array of rack sections (14) through which the articles pass to be assembled into consignments via an outward conveyor (32). The individual articles are unpacked from the packs and the packs are temporally buffered by means of an intermediate store (6). Control is effected by a computer (2) which issues control data (d) to the intermediate store (6) and the various positions of the consignment-assembly unit (9) on the basis of goods received data (a) and customer order data (b) so as to determine, starting from the intermediate store (6), which article is to pass at which time to any particular rack section (14) and is to be available at a further particular time at the outlet in a consignment.
    Type: Grant
    Filed: May 9, 1991
    Date of Patent: July 27, 1993
    Inventor: Ferdinand Christ
  • Patent number: 5231066
    Abstract: A bimodal silica gel particle, its method of preparation and its use as a catalyst support in the polymerization of olefins is disclosed. The bimodal silica gel particle exhibits a bimodal pore radius distribution, wherein the silica gel particle has a first average pore radius and a second average pore radius differing by at least about 20 .ANG.. The bimodal silica gel particle is useful as a support for a transition metal-based catalyst to provide a polyolefin having a broad or bimodal molecular weight distribution.
    Type: Grant
    Filed: September 11, 1991
    Date of Patent: July 27, 1993
    Assignee: Quantum Chemical Corporation
    Inventors: Louis J. Rekers, Roger D. Laib
  • Patent number: 5225649
    Abstract: A device for cutting a strip fed continuously on a roller through a cutting station where a series of at least partial transverse cuts are made successively in the strip by a cutting unit. On the cutting unit, a hollow rotary drum receives a laser beam emitted by a laser source, and focuses the beam at at least one point which, as the drum rotates, moves along an annular trajectory, the plane of which intersects the route of the strip at the cutting station and forms a given angle with a line intersecting the route of the strip.
    Type: Grant
    Filed: July 1, 1991
    Date of Patent: July 6, 1993
    Assignee: G.D Societa' per Azioni
    Inventors: Paolo Andreoli, Giulio Barbieri, Bruno Belvederi
  • Patent number: 5225973
    Abstract: A regulator circuit for an inverter having first and second inverter sections that develop first and second AC waveforms which are phase displaced by a variable angle .alpha. wherein the first and second AC waveforms are combined to produce AC output power includes a reference signal generator that develops a reference signal having a transition between two states at a first time, a memory storing a plurality of words each representing a value of .alpha. add a circuit for accessing the memory with a deviation signal such that the memory provides a word at an output thereof. A counter is provided and a timing circuit causes the counter to load the word at a time prior to the first time. At the first time a gating circuit provides a plurality of clock pulses to a clock input of the counter whereby the counter decrements the loaded word as the clock pulses are received by the counter.
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: July 6, 1993
    Inventors: Sunil Patel, Chai-Nam Ng, Vietson Nguyen, P. John Dhyanchand
  • Patent number: 5223025
    Abstract: A coating composition that inhibits corrosion of metal substrates, a method of inhibiting corrosion of a metal substrate with a corrosion-inhibiting coating composition, and a metal article that resists corrosion are disclosed. The corrosion-inhibiting coating composition comprises: (a) a high molecular weight epoxy resin; (b) a phenolic resin; (c) an organic corrosion inhibitor having the general structural formula ##STR1## wherein each R is selected, independently, from the group consisting of hydrogen, alkyl, haloalkyl, alkoxy, alkylthio, alkylsulfonyl, cycloalkyl, phenyl, alkylphenyl, phenylalkyl, halo, cyano, nitro, carboxyl, carboxyalkyl, hydroxy, amino, and carbamoyl, and wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are selected, independently, from the group consisting of hydrogen, alkyl, hydroxyalkyl, haloalkyl, alkoxyalkyl, carboxyalkyl, carboxyl, phenyl, and phenylalkyl, and wherein at least one of the R.sub.1, R.sub.2, R.sub.3 and R.sub.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: June 29, 1993
    Assignee: The Dexter Corporation
    Inventor: Lawrence P. Seibel
  • Patent number: 5221624
    Abstract: Genes are disclosed which are capable of directing the synthesis in a selected host microorganism of thaumatin I polypeptides having improved taste characteristics characterized by having the amino acid sequence of natural thaumatin I including a lysine amino acid residue substituted for asparagine in the 46th position from the amino terminal end, an aspartate amino acid residue substituted for asparagine in the 113th position from the amino terminal end and an aspartate amino acid residue substituted for lysine at either the 97th or 137th residue from the amino terminal end.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: June 22, 1993
    Assignee: International Genetic Engineering, Inc.
    Inventors: Lindley C. Blair, Raju K. Koduri, Jar-How Lee, Joachim L. Weickmann
  • Patent number: 5221290
    Abstract: A combustible carbonaceous briquette and method of making the briquette wherein a finely divided carbonaceous material is formed into a desired briquette shape under high pressure whereby carbonaceous particles are bound together by a pre-cooked mixture of an organic binder and a water-swellable clay. The combustible carbonaceous material is present in the briquette composition in an amount of about 85% to about 96% by weight; the organic binder is present in an amount of about 2% to about 8% by weight; and the water-swellable clay is present in an amount of about 1% to about 5% by weight. The weight ratio of organic binder to water-swellable clay, dry weight basis, is in the range of from about 1.5 to about 3.0 to 1.
    Type: Grant
    Filed: February 4, 1991
    Date of Patent: June 22, 1993
    Assignee: American Colloid Company
    Inventor: Donald J. Dell
  • Patent number: 5221530
    Abstract: A conditioning shampoo containing an anionic surfactant, in an amount of about 5% to about 25% by weight, and a cationic acrylate/acrylamide copolymer conditioning agent material, in an amount of about 0.1% to about 20% by weight, has extended product stability, excellent overall conditioning to human hair, particularly superior wet and dry combing properties, and unexpectedly maintains very high levels of foam, with a mild anionic cleansing detergent, e.g., an anionic carboxylate detergent, or with lower amounts of a strong anionic cleansing detergent, such as a long chain (C.sub.12 -C.sub.22) alkyl sulfate, and/or a long chain (C.sub.12 -C.sub.22) partially or fully ethoxylated alkyl sulfate; and/or a long chain (C.sub.12 -C.sub.22) sulfonate.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: June 22, 1993
    Assignee: Helene Curtis, Inc.
    Inventors: Ben Janchitraponvej, William J. Brown
  • Patent number: 5220285
    Abstract: A system for electrical continuity and insulation testing of the electrical conductors of a portion of wiring. Outputs (11b.1, 11b.2, 11b.3) of the connecting elements of the conductors are disposed on a support (12.1, 12.2, 12.3) in the form of a matrix and the means for selecting the output comprise a first set (13.1) and a second set (13.2) movable along rows and columns of the matrix to connect to the measuring means (5) those two outputs of the connecting elements which correspond to the first and second connecting elements of the conductor being tested and a third set (13.2) movable along the rows and columns of the matrix to connect to the measuring means (5) such an output of the connecting elements as corresponds to a connecting element of the conductor under test, and a fourth set (13.3) for connecting other outputs of the connecting elements to the measuring means (5).
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: June 15, 1993
    Assignee: Societe Anonyme die: Aerospatiale Societe Nationale Industrielle
    Inventor: Leon G. Cerda
  • Patent number: D337368
    Type: Grant
    Filed: April 29, 1992
    Date of Patent: July 13, 1993
    Assignee: Shop-Vac Corporation
    Inventors: Robert C. Berfield, Craig A. Seasholtz