Patents Represented by Law Firm Parmelee, Bollinger & Bramblett
  • Patent number: 4976409
    Abstract: A picture frame stand has a pedestal and tubular sleeve vertically mounted from the pedestal. An open vertical slot extends along a substantial length of the sleeve which houses a pole mounted for vertical movement in the sleeve. A screw is anchored near the lower end of the pole and is positioned for slideable movement in the slot and a nut is mounted on this screw for holding the pole in a fixed position in the slot when the desired height of the pole is reached. Accordingly, the adjustment of the pole in the sleeve is obtained by loosening the nut and moving the screw up and down in the slot. A peg is provided on the upper end of the pole adapted to receive a picture hanger. The hanger has a general horseshoe configuration terminated in a plate which is mounted on a picture frame. The plate has a horizontal slot therein with the screw positioned in the slot permitting horizontal movement of the hanger on the frame for providing an adjustment.
    Type: Grant
    Filed: March 12, 1990
    Date of Patent: December 11, 1990
    Inventor: Willy Hansen
  • Patent number: 4972900
    Abstract: Method and apparatus for the feeding of molten metals through nozzles having gas-permeable walls, cooperating with twin-belt continuous metal-casing machines. The closed-channeled, multi-passaged nozzles have gas-permeable refractory walls, allowing the escape of gases that may be dissolved in the molten metal and become expelled or liberated from it while the molten metal is flowing through the passageways in the nozzle. Gaseous voids in the continuously cast product are thereby avoided, notably in aluminum casting as shown by experimental results to date. The nozzles are made from gas-permeable refractory material having interconnected porosity--that is, interconnected void interstices--extending through the nozzle walls. The interconnected void interstices are of sufficient size for allowing the passage of hydrogen gas through the walls, while being sufficiently small for preventing the leakage of molten metal. The gas-permeable refractory material is relatively non-wettable by the molten metal.
    Type: Grant
    Filed: October 24, 1989
    Date of Patent: November 27, 1990
    Assignee: Hazelett Strip-Casting Corporation
    Inventor: Wojtek Szczypiorski
  • Patent number: 4969823
    Abstract: Process for making an integrated-circuit (IC) chip with junction-isolated complementary bipolar transistors, and novel chip made by such process. P-type dopant is implanted and diffused in an N-type substrate to form a sub-collector for a pnp transistor and also is implanted and diffused in the substrate to form a P-well for the sub-collector of an npn transistor. N-type material is then implanted and diffused into the P-well to form the npn sub-collector, and also is implanted in the substrate to form part of an isolation wall for the pnp transistor. A P-type epitaxial (epi) layer is grown over the N-type substrate. N-type material is implanted and diffused in the epi layer to complete the isolation wall for the pnp transistor, and to form the collector for the npn transistor. P-type and N-type material is implanted and diffused in the P-type epi layer to form the bases and emitters for the npn and pnp transistors.
    Type: Grant
    Filed: May 5, 1988
    Date of Patent: November 13, 1990
    Assignee: Analog Devices, Incorporated
    Inventors: Jerome F. Lapham, Brad W. Scharf
  • Patent number: 4970470
    Abstract: An integrated-circuit (IC) transimpedance amplifier having a successive series of DC-coupled balanced symmetrical amplifier stages with overall current feedback. The input stage includes a pair of series-connected NPN/PNP transistor with common emitters serving as the inverting input terminal. The second stage includes a cross-coupled transistor quad with the bases of the first quad pair coupled to the collectors of the first stage transistors. The inter-stage coupling circuit includes a series string of diodes connected between the collectors of the first stage transistor pair. The input stage transistor pair is identical to the transistor pairs of the second stage quad, and all of those transistors carry identical DC currents. An output stage amplifier is driven by a signal from the collectors of the first transistor pair of the second stage quad. The second transistor pair of the quad is coupled to the output stage through current mirrors to augment the output signal.
    Type: Grant
    Filed: October 10, 1989
    Date of Patent: November 13, 1990
    Assignee: Analog Devices, Incorporated
    Inventor: Royal A. Gosser
  • Patent number: 4960585
    Abstract: A solution for the rapid indication of hair pH and method of determining hair pH and restoration of hair to its isoionic range with buffered conditioning rinses.
    Type: Grant
    Filed: February 7, 1990
    Date of Patent: October 2, 1990
    Inventor: Nasser N. Tehrani
  • Patent number: 4959293
    Abstract: 2-diazo-1-ones are useful deep UV photoresist solubility modification agents exhibiting improved photosensitivity allowing shorter deep UV exposure times to achieve the same extent of photoreaction as with prior art solubility modification agents. The 2-diazo-1-one solubility modification agents when used as photoactive solubility modification components in photoresist compositions permit the photoresist compositions to act as either positive or negative photoresist compositions depending upon the developer employed, namely, as a positive resist when a metal ion containing developer is employed and as a negative resist when a metal ion free developer is employed.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: September 25, 1990
    Assignee: J. T. Baker, Inc.
    Inventors: George Schwartzkopf, John B. Covington, Kathleen B. Gabriel
  • Patent number: 4957127
    Abstract: A cylindrical paint roller cover applicator having a hollow body member supporting a paint-absorbing layer is plugged and inserted in the cleaning apparatus which comprises a cylindrical sleeve having an inside diameter sligtly smaller than the outside diameter of the applicator. A first end cap having a central opening therein is frictionally mounted on one end of the sleeve and has a central opening adapted to couple a water supply thereto. A coupler is frictionally mounted on the other end of the cylindrical sleeve which contains a bayonet socket which is adapted to removably house a second end cap having a plurality of bayonet studs equally spaced around the periphery which may be removably inserted and locket in the bayonet socket of the coupling.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: September 18, 1990
    Inventor: George P. Kostopoulos
  • Patent number: 4950102
    Abstract: A wheel compaction unit for use on the articulated arm of heavy excavation equipment comprises a frame mounted to the equipment arm, the frame including support arms mounting a hub and axle assembly including three independently rotatable bearing mounted hubs. At least one compaction wheel is mounted to each hub, and auxiliary compaction wheels including angled spokes and an offset periphery are provided for mounting to the outside hubs to increase the working width of the wheel compaction unit. The hubs and axle assembly is sealed with ground metal seals and end plates. The periphery of the compaction wheels include spaced-apart presentation supports having angled leading/trailing edges, the presentation supports each supporting a compaction foot integral with the wheel. A removable wear collar closely surrounds the compaction foot and receives the primary impact and abrasion during use of the compaction unit, the wear collars being readily replaceable.
    Type: Grant
    Filed: January 27, 1988
    Date of Patent: August 21, 1990
    Inventor: James H. Zeitz
  • Patent number: 4950499
    Abstract: A compliant sealing material with low or no gas permeability and low spring rate is made by coating a metal such as gold, on the surface of a polymer sheet. The metal acts as a complete gas barrier on an atomic level, and the polymer provides structural integrity and mounting attributes without detrimentally increasing compliance. A small number of metal atoms injected at a moderate energy into the near surface of the polymer act as link sites for joining subsequent lower energy atoms forming an impermeable layer. The total heat delivery to the polymer is minimized thereby preserving integrity and continuity. The material is particularly useful in micromechanical devices where high flexibility is needed with complete sealing.
    Type: Grant
    Filed: April 26, 1989
    Date of Patent: August 21, 1990
    Assignee: The Foxboro Company
    Inventors: John R. Martin, Richard A. Anderson
  • Patent number: 4947832
    Abstract: A colicky infant's vestibular and auditory centers are stimulated mechanically to simulate womb conditions to ease the transition from womb to postgestational life. In this soothing method an infant is placed in a crib with a mattress and having padded protective sides assuring appropriate positioning on the mattress, to which is imparted a regular, repetitive low frequency sine wave motion progressively traveling longitudinally thereof with simultaneous vibrations, whereby the infant experiences gentle, low frequency, regular, progressive, traveling sine wave motion plus hearing and sensing subdued vibrations like sensations previously experienced in the womb. The protective padded sides encircling the infant offer a warm enclosure while subduing or muffling exterior sounds.
    Type: Grant
    Filed: November 23, 1987
    Date of Patent: August 14, 1990
    Inventor: Avrum H. Blitzer
  • Patent number: 4943186
    Abstract: Device and process for the displacement of sediment under water by means of water jets which liquify the sediment so that it flows away under water without polluting the surface water, the improvement being that the device has laterally directed outflow openings, which reach areas out of reach of the downwardly directed jets and by means of which soil accumulations such as ridges can be leveled.
    Type: Grant
    Filed: March 29, 1989
    Date of Patent: July 24, 1990
    Inventor: Reijer N. Van Weezenbeek
  • Patent number: 4942967
    Abstract: One or more bottle-holding rack components which may be interconnected and assembled to form a bottle rack and the like are each provided in the shape of a cradle having an upper bottle cradling surface and a plurality of upstanding legs each of which contain a joint element on the outer surface thereof and on the upper extremity of each of the upstanding legs. Interconnecting members are provided extending laterally on each side of the upper bottle cradling surface and are adapted to form an interconnection between adjacently-positioned bottle rack components. Each joint element on the upper and outer extremity of each leg are adapted to form a joint connection between complementary joint elements of adjacently-positioned bottle rack components whereby when adjacently-positioned bottle rack components are inconnected, three spaced joints are formed between the adjacently-connected components.
    Type: Grant
    Filed: August 14, 1989
    Date of Patent: July 24, 1990
    Inventor: Bernardus J. J. A. Schneider
  • Patent number: 4940076
    Abstract: A method and system is used for achieving increased precision of steering of the flexible, metallic endless belts of continuous metal-casting machines. Such belts usually have the imperfections inherent in the parent strip metal from which the belt is made. For example, in low-carbon steel, there is generally a "camber," a curvature of the edges in the plane of the strip material. Belts, revolving in the machine, are normally steered through sensing the lateral position of one edge. If the edge is not true, due to camber, the servo steering system of the prior art will continually "hunt" caused by variations in lateral position of the cambered edge. The present invention provides a steering method and system responsive to a single signal source, fixed on a belt edge. This single signal source is achieved by notching or otherwise cuing a belt at one place along an edge so that the steering sensor senses this cue notch as the belt revolves.
    Type: Grant
    Filed: May 9, 1989
    Date of Patent: July 10, 1990
    Assignee: Hazelett Strip-Casting Corporation
    Inventors: S. Jerry Desautels, Timothy D. Kaiser
  • Patent number: 4937430
    Abstract: In a utility steam generator for small household electric appliances, steam pressure and filling water supply to the boiler is automatically controlled merely by a microswitch and a temperature controller, rather than by conventional devices such as pressure switches and maximum and minimum level controlling devices. The boiler body has a U-shaped pipe closed at both ends to form two legs, which are arranged on two superposed planes, so that the lower leg is the true boiler containing water and a heater and the upper leg is a steam dome. Control of steam pressure is effected by utilizing the variation of curvature of the pipe when the internal pressure varies, with a microswitch being used to switch the electric heating resistance on and off. The microswitch is mounted between the ends of the two legs of the U-shaped pipe, so the microswitch is closed by the two ends approaching one another when the pressure inside the pipe is reduced and the current is fed to the electric heater.
    Type: Grant
    Filed: June 2, 1989
    Date of Patent: June 26, 1990
    Assignee: Termozeta Elettrodomestici S.p.A.
    Inventor: Cesare Belloni
  • Patent number: 4934687
    Abstract: There are disclosed method and apparatus for stacking the output ("documents" or "printed products") of a high speed printing press or bindery line. The documents are shingled on a linear infeed conveyor where they are also aligned, positioned, and counted, all at high speed. When the amount of documents desired for a stack have been counted or weighed or determined by stack size or height, further document flow is temporarily interrupted. The documents are speeded up in an accelerator to reduce the amount of shingling. They are ejected from the accelerator to glide through the air onto a stack starter surface which slowly descends as the stack is formed. The partially completed stack is transferred to a de-elevator and the stack starter returns to begin building a new stack. The de-elevator lowers the completed stack onto a receiving surface and rises to receive the next partially completed stack from the stack starter surface. A pusher then removes the stack from the receiving surface.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: June 19, 1990
    Assignee: Galpin Research, Limited Partnership
    Inventors: William Hayden, Mark W. Hayden, Richard S. White
  • Patent number: 4932054
    Abstract: Filter networks are incorporated within a software protection hardware device which is plugged into a communications port of a computer which device will select bits or combinations of bits emanating from the communications port resulting from commands of a controlling software in use with the computer which is desired to be protected. The filter networks select the bits of a disguised predetermined control code which when matched with a stored reference code results in an output from the filter used to activate functions within the protection device. A stream of bits including a disguised predetermined control code issuing from the computer through the security device are compared with a stored reference code in a programmable memory. When a match occurs an output emanates providing an acknowledgment code to the computer indicating that the hardware device has been plugged in and is a proper one.
    Type: Grant
    Filed: September 16, 1988
    Date of Patent: June 5, 1990
    Inventors: Wayne W. Chou, Richard E. Erett
  • Patent number: 4928916
    Abstract: A ceiling panel installation support includes a rectangular tubular cushioned panel rest which during operation conveniently temporarily holds a ceiling panel, such as a sheet rock panel, up against an overhead ceiling structure while the panel is being secured in place by permanent attachment to the overhead structure by nails or screws or other fastening means. In preparing the present ceiling panel installation support for shipment, for storage or for carrying from one job site to another, the rectangular tubular cushioned panel rest is easily detached from its operating position at the upper end of the upright elongated, spring-biased, releasable-clutch-controlled jacking assembly. Then, this tubular panel rest is placed in telescoping relationship around the jacking assembly as a temporary housing for providing a compact and unified easily carried or stored package of components.
    Type: Grant
    Filed: April 28, 1989
    Date of Patent: May 29, 1990
    Inventor: John F. Molloy
  • Patent number: 4927318
    Abstract: The output of a high speed press or bindery is formed into stacks which are then combined into four stack "cubes". The cubes are handled as units and formed into tiers which can be loaded onto pallets. A pickup head for manipulating the cubes is carried by a transport device such as a gantry or robot arm. It has a top plate which is connected to the transport device. The top plate carries horizontal guide members from which depend four side panels. The side panels may be retracted to grasp the sides of the cube or extended to release the cube. Fingers mounted along the bottom edges of the side panels are designed to extend between the bottom sheets of the cube and the surface on which it sits. They can be locked into this position, permitting the cube to be lifted and transported by the pickup head. Also disclosed is a gantry-type transport device with a telescoping extender to which the pickup head is connected.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: May 22, 1990
    Assignee: Galpin Research, Limited Partnership
    Inventors: William Hayden, Mark W. Hayden, Richard S. White
  • Patent number: D308257
    Type: Grant
    Filed: September 18, 1987
    Date of Patent: May 29, 1990
    Assignee: The Bridgeport Metal Goods Manufacturing Company
    Inventors: Robert B. Staubitz, Frank G. Marshall
  • Patent number: D309587
    Type: Grant
    Filed: March 26, 1987
    Date of Patent: July 31, 1990
    Assignee: Spaeth Design
    Inventor: Rudy Vicenes