Patents Represented by Attorney, Agent or Law Firm Robert S. Nolan
  • Patent number: 6722826
    Abstract: An internal cavity cutting tool assembly includes a tool body, a tool hanger, and a bearing assembly. The tool hanger body has a through-bore that is adapted to receive the bearing assembly. The tool body has first and second body portions, each having an arbor bore, a cutting face having a plurality of indexable cutting inserts, and a bearing support surface. The bearing support surface of the second tool body portion is also received by end of the through-bore, such that the bearing support surfaces of the tool body portions oppose each other within tool hanger body. An arbor drive shaft and a support are operatively inserted though openings in a workpiece and through the arbor bore of the tool body. The arbor drive is retained in a milling device to operatively rotate the tool body assembly while precisely locating the tool hanger assembly, thereby sweeping the cutting inserts against the portions of the workpiece to be cut.
    Type: Grant
    Filed: June 1, 2002
    Date of Patent: April 20, 2004
    Inventor: Brian M. Cavanaugh
  • Patent number: 6486643
    Abstract: An H bridge regulating system for driving an electric load includes a linear output stage and switch mode output stage connected to opposite ends of the load. The linear output stage has a linear mode amplifier and a feedback circuit, and its amplifier generates a first output signal tied to one end of the load. This output voltage is passed through a conditioning resistor to an inverting input of the linear mode amplifier. The switch mode output stage has a switch mode amplifier and a feedback circuit, and its amplifier generates a second output signal tied to the other end of the load. Its voltage signal is passed through a second conditioning resistor to an inverting input of the switch mode amplifier. Other feedback circuit elements are also provided to create three distinct regions of operations for each of the amplifiers.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: November 26, 2002
    Assignee: Analog Technologies, Inc.
    Inventor: Gang Liu
  • Patent number: 6474093
    Abstract: Self-contained closed-loop cooling systems and related methods for rapidly cooling individual beverage containers of different sizes to a suitable target temperature, in the range of 35° F. to 50° F. Each system includes a chiller, a coolant circuit with a hyper-chilled supply reservoir, a refrigerant circuit for cooling the reservoir, and an electronic controller to operate the system upon operator command. The chiller is preferably formed like a barrel, with a cylindrical array of hollow chill elements arranged about a cylindrical area into which a beverage container, such as beverage bottle or can is placed. Then, very cold coolant from the coolant supply is pumped through the array of chill elements to rapidly cool the beverage container, which makes physical contact with the hyper-chilled elements, which are thus excellent heat absorbers. The chill elements are preferably separated from one another by keystone spacers, and are flexibly held in place with a plurality of coil springs.
    Type: Grant
    Filed: October 23, 2001
    Date of Patent: November 5, 2002
    Assignee: Cosmo Tech Development, Inc.
    Inventors: Harvey S. Fink, Thomas E. Mahany, Lawrence J. Nolan
  • Patent number: 5552759
    Abstract: An alarm system for detecting unauthorized removal of a wheel assembly or wheel accessory from the vehicle includes a sensor having a secured state and an unsecured state. The sensor is in the secured state when the wheel assembly or accessory is installed on the vehicle and in the unsecured state when it is removed from the vehicle. An alarm transmitter is connected to the sensor and alters a radio frequency (RF) alarm signal when the sensor changes from the secured state to the unsecured state. A receiver, located remotely from the alarm transmitter, receives the RF alarm signal and generates an alarm triggering signal in response thereto. The sensor and alarm transmitter are preferably part of a sensing assembly which includes a fastener for connecting the sensing assembly to a wheel lug or other wheel part. The sensing assembly includes a housing with a cavity for enclosing the sensor and the alarm transmitter. The sensor may be a pressure switch, an electronic switch or other sensing device.
    Type: Grant
    Filed: November 2, 1994
    Date of Patent: September 3, 1996
    Inventor: David S. Stoyka
  • Patent number: 4653864
    Abstract: Light influencing displays and more particularly liquid crystal displays are disclosed which have a pair of light transmissive electrode supports which are uniformly spaced apart by a predetermined distance over the entire display area. The electrode supports are spaced apart by spacer means including a plurality of spacers arranged in a predetermined pattern between the electrode supports.
    Type: Grant
    Filed: February 26, 1986
    Date of Patent: March 31, 1987
    Assignee: Ovonic Imaging Systems, Inc.
    Inventors: Yair Baron, Meera Vijan
  • Patent number: 4654295
    Abstract: Methods for producing field effect transistors having short current-conduction channels and reduced parasitic capacitance are disclosed. The methods allow the channel length to be substantially less than the minimum feature size of the photolithographic mask if desired, thereby enabling very short channel length transistors to be formed using conventional ten micron photolithography.
    Type: Grant
    Filed: December 5, 1983
    Date of Patent: March 31, 1987
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Mohshi Yang, David Vesey
  • Patent number: 4646266
    Abstract: A solid state semiconductor device is disclosed which is programmable so as to alter the impedance between its two terminals. In many embodiments, the device is programmable to have any one of four conditions: a first in which the electrical impedance is relatively high in both directions; a second in which the impedance is relatively high in one direction and relatively low in the opposite direction; a third in which the impedance is relatively high in the opposite direction and relatively low in the first direction; and a fourth in which the impedance is relatively low in both directions. Such a programmable device can be made with semiconductor layers which form two series coupled back-to-back diodes, each of which can be selectively programmed to lose its rectifying feature. Structures are disclosed which include a plurality of such programmable devices in one or more separately programmable planes, each with its own addressing means.
    Type: Grant
    Filed: September 28, 1984
    Date of Patent: February 24, 1987
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Stanford R. Ovshinsky, Robert R. Johnson, Vincent D. Cannella, Zvi Yaniv
  • Patent number: 4639087
    Abstract: Light influencing subassemblies and displays each having a structure in which all of the addressed pixel electronic circuitry including an optimized capacitance and including isolation devices where utilized, are located at one electrode side of each pixel electrode combination. The structure includes the subdivision of one pixel electrode into at least two spaced apart side-by-side electrode segments opposite a common electrode. The displays include light influencing material disposed between the segmented and common electrodes which form a first capacitance. A second capacitance is formed electrically in parallel with the first capacitance. The second capacitance can include an additional capacitance electrode formed separated from the segmented electrode by an insulating layer.
    Type: Grant
    Filed: August 8, 1984
    Date of Patent: January 27, 1987
    Assignee: Energy Conversion Devices, Inc.
    Inventor: Vincent D. Cannella
  • Patent number: 4633284
    Abstract: A new and improved thin film field effect transistor and method provides such a transistor having increased operating frequencies and higher output currents. The transistor includes a gate electrode having a non-coplanar surface with respect to the substrate and a deposited semiconductor material overlying the gate electrode to form a current conductor channel between a source and drain. The length of the current conduction channel is determined by the thickness of the gate electrode which can be accurately controlled. As a result, short channel lengths are possible without high precision photolithography for high output currents and fast operating speeds. Further, a gate insulator is disposed between the gate and the deposited semiconductor. The gate insulator, which can be a gate oxide, can be annealed prior to the deposition of the deposited semiconductor to provide enhanced field effect mobilities. This further increases the transistor output currents and operating speeds.
    Type: Grant
    Filed: November 8, 1983
    Date of Patent: December 30, 1986
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Gregory L. Hansell, Zvi Yaniv, Vincent D. Cannella
  • Patent number: 4630355
    Abstract: Circuit assemblies are disclosed which include a supporting substrate, a plurality of conductive lines supported on the substrate and a deposited phase-change material capable of an energy induced phase change from an initially high resistance state to a relatively low resistance state placed in electrical contact with the conductive lines. The assemblies also include contact receiving means connected to the conductive lines at preselected discrete locations to receive externally applied contact means, such as electric probes, for applying voltages across selected portions of the conductive lines. The application of such voltages can induce a phase change in portions of the phase-change material which bridge breaks in the conductive lines of such circuit subassemblies, changing such portions from their high resistance state to their low resistance state, thereby forming electrically shunting conductive paths around such open circuits. There are also disclosed methods of making such circuit assemblies.
    Type: Grant
    Filed: March 8, 1985
    Date of Patent: December 23, 1986
    Assignee: Energy Conversion Devices, Inc.
    Inventor: Robert R. Johnson
  • Patent number: 4622654
    Abstract: Disclosed is a device and method for the storage and conversion of a light input into a corresponding output with light from another source. The device includes an improved liquid crystal light valve having as a photosensor layer a deposited memory semiconductor material which is reversibily convertible between a first stable, relatively high electrical resistance condition and a second stable, relatively low electrical resistance condition. Each change of state or condition will remain after cessation of the input until stimulated to reverse to the other state, thereby achieving a storage or memory function.
    Type: Grant
    Filed: January 16, 1984
    Date of Patent: November 11, 1986
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Zvi Yaniv, David A. Strand, John D. Vala
  • Patent number: 4620208
    Abstract: A high performance, small area thin film transistor has a drain region, an insulating layer, and a source region at least portions of the edge of which form a non-coplanar surface with respect to a substrate. The insulative layer is formed in between the source and drain regions. A deposited semiconductor overlies the non-coplanar surface to form a current conduction channel between the drain and source. A gate insulator and gate electrode overly at least a portion of the deposited semiconductor adjacent thereto. The length of the current conduction channel is determined by the thickness of the insulative layer and therefore can be made short without precision photolithography. The non-coplanar surface can be formed by utilizing a dry process to simultaneously etch through several layers in a continuous one-step process. A second dielectric layer may be formed above the three previous layers.
    Type: Grant
    Filed: November 8, 1983
    Date of Patent: October 28, 1986
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Hellmut Fritzsche, Robert R. Johnson
  • Patent number: 4606610
    Abstract: A system is disclosed which includes a transmissive liquid crystal display of the type which may display a line of characters or symbols at a time, or which may display only a raster line in combination with an energy source and a controllable and transportable medium. The medium is exposed by energy from the source of energy passing through the liquid crystal display which acts as a mask for the source of energy. The liquid crystal display may be set by electrical signals manually generated such as by a keyboard or by signals automatically generated by use of other electronic equipment. In one alternate embodiment of the invention a large area two-dimensional liquid crystal display is used as a mask. In another embodiment of the invention a liquid crystal display is used as a mask for the purpose of exposing a photoconductive drum of the type used in xerography. A reflective liquid crystal display is disclosed in yet another embodiment of the invention.
    Type: Grant
    Filed: May 3, 1984
    Date of Patent: August 19, 1986
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Zvi Yaniv, Vincent D. Cannella, Terry T. Yu, Christopher Fulton
  • Patent number: 4599705
    Abstract: A programmable cell for use in programmable electronic arrays such as PROM devices, logic arrays, gate arrays and die interconnect arrays. The cells have a highly non-conductive state settable and substantially non-resettable into a highly conductive state. The cells have a resistance of 10,000 ohms or more in the non-conductive state which are settable into the conductive state by a threshold voltage of 20 volts or less, a current of 25 milliamps or less, for 1000 microseconds or less. The cells in the conductive state have a resistance of 500 ohms or less. The cells have a maximum permittable processing temperature of 200.degree. centigrade or more and a storage temperature of 175.degree. centigrade or more. The cells can be formed from chalcogenide elements, such as germanium tellurium and selenium or combination thereof. The cells also can be formed from tetrahedral elements, such as silicon, germanium and carbon or combinations thereof.
    Type: Grant
    Filed: September 10, 1984
    Date of Patent: July 8, 1986
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Scott Holmberg, Richard A. Flasck
  • Patent number: 4597162
    Abstract: A method of making a parallel programmed electronic matrix array including the steps of forming at least one layer of a phase changeable material on a conductive substrate, wherein the phase changeable material has a substantially nonconductive state and a comparatively high conductive state. The layer is formed in one of the states. The method also includes irradiating selected areas of the layer to simultaneously convert the selected areas of the layer to the other one of the states to form selected substantially nonconductive layer portions and selected comparatively high conductive layer portions. Thereafter, in a preprogrammed embodiment, first and second sets of electrically conductive address lines are formed on respective opposite sides of the layer.
    Type: Grant
    Filed: October 7, 1985
    Date of Patent: July 1, 1986
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Robert R. Johnson, Stanford R. Ovshinsky
  • Patent number: 4593199
    Abstract: A device and method for converting an X-ray image into a corresponding output image with light from a different source and a phosphorescent layer in conjunction with a liquid crystal light valve. The light valve includes a photosensor layer comprised of a deposited semiconductor material having distinct light and dark photoconductivities, the light photoconductivity being substantially greater than the dark photoconductivity.When impinged upon by an particular pattern of X-rays, the phosphorescent layer phosphoresces in a corresponding pattern, which phosphorescence in turn causes the semiconductor layer to be switched to its light photoconductivity in a pattern also corresponding to that of the input X-ray image. The pattern of switched semiconductor in the photosensor layer allows a biasing voltage to be switched over to the liquid crystal layer of the light valve in a corresponding pattern.
    Type: Grant
    Filed: January 22, 1985
    Date of Patent: June 3, 1986
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Zvi Yaniv, Robert R. Johnson
  • Patent number: 4589733
    Abstract: Light influencing subassemblies and displays each having a structure in which all of the pixel electronic circuitry, including isolation devices where utilized, are located at one electrode side of each pixel electrode combination. The structure includes the subdivision of one pixel electrode into at least two spaced apart side-by-side electrode segments opposite a common electrode. The displays include light influencing material disposed between the segmented and common electrodes. The electrode segments further can include at least one isolation device coupled to at least one of the segments which facilitates selective excitation of the pixel elements and applied potential reversal across the electrodes during alternate display frames. The displays have an increased manufacturing yield, reduced capacitance and increased isolation. Also disclosed is a method of making the subassemblies and displays.
    Type: Grant
    Filed: June 29, 1984
    Date of Patent: May 20, 1986
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Zvi Yaniv, Yair Bar-on, Vincent D. Cannella, Gregory L. Hansell
  • Patent number: 4588903
    Abstract: A high speed digital electronic system includes a plurality of logic or switching circuits for providing one or more bits of discrete output in response to applied input signals. At least some of the circuits include devices switchable between at least two logic states, and are formed from materials of the type which exhibit increased switching speeds when maintained in a dynamic mode of operation. Signal source means apply to the system dynamic signals for maintaining the switchable devices in a dynamic mode of operation. The switchable devices are preferably formed from amorphous semiconductor alloys including silicon and may take the form of diodes to form AC logic AND gates, OR gates or a matrix selection circuit. The dynamic signals take the form of alternating major and minor clock pulses having a frequency between 10 and 40 megahertz. The logic circuits are arranged to form a binary adder.
    Type: Grant
    Filed: October 24, 1983
    Date of Patent: May 13, 1986
    Assignee: Energy Conversion Devices, Inc.
    Inventor: Robert R. Johnson