Patents Represented by Attorney Richard D. Law
  • Patent number: 4210136
    Abstract: A piston type air pump, for forced lung ventilation, with a variable length of stroke and a variable timing of inspiratory and expiratory phases. The pump includes a stepless change, variable radius crank arm, controllable during pump operation for changing the volume capacity of the pump. The drive motor is arranged for movement for varying the timing of piston in-movement to the piston out-movement for varying the time ratio of inspiration to expiration.
    Type: Grant
    Filed: September 25, 1978
    Date of Patent: July 1, 1980
    Inventor: Wayne R. Apple
  • Patent number: 4205526
    Abstract: Fresh air is introduced into the exhaust pipe leading to the muffler for an internal combustion engine, while the air and exhaust gas mixture is cooled, not only in the muffler but also in a circuitous tube which extends from the muffler to the normal discharge or tail pipe and in which a special cooler may be installed. From the outlet of the special cooling tube, which faces forwardly, a portion of the air and exhaust gas mixture, now cooled, is led from a Y-connection to the intake tube of the air filter, so that the air and exhaust gas mixture will be introduced into the intake system prior to the carburetor. A rearwardly slanting arm of the Y-connection connects the front end of the special cooling pipe with the normal tail pipe.
    Type: Grant
    Filed: September 13, 1978
    Date of Patent: June 3, 1980
    Inventor: LeRoy Owens
  • Patent number: 4201157
    Abstract: A wheeled frame having sidewalls and bed forming an animal walkway, and a self-contained hydraulic system to move the bed of carriage from an elevated travel position to a general ground level for passing animals through the unit, and a front elevating assembly for forming the frame into a chute for loading animals into vehicles with elevated floors. The sidewalls are arranged to be movable in relation to each other changing the width of the animal walkway, and at least one sidewall is bottom pivoted to form an animal squeeze cage, with gates in the sidewalls for permitting access to held animals.
    Type: Grant
    Filed: May 25, 1978
    Date of Patent: May 6, 1980
    Inventor: Joe Lambert
  • Patent number: 4201048
    Abstract: A connector for interengaging the exhaust header components of an internal combustion engine that are subjected to movement and vibration to a turbine compressor and/or tail pipe components that are constrained and relatively unmoving wherein inner and outer sleeves of generally telescoping type are separately joined to said moving and constrained components by angular misalignment compensating ball socket joints held in assembled relation with said components by mating flanges. Said inner and outer sleeves further cooperatively provide a close interfitting engagement between a smooth cylindrical surface on one sleeve and a plurality of spaced circumferential ribs on the other sleeve to provide spaced apart pressure sealing zones whereby the pressure of any escaping exhaust gases are reduced by stepped gradients.
    Type: Grant
    Filed: October 13, 1977
    Date of Patent: May 6, 1980
    Inventors: Roy G. Fisher, Michael S. Fisher
  • Patent number: 4198214
    Abstract: An oil and gas separator having an internal heating coil for solution from a heater, and a thermostat controlled three way valve for either injecting supply gas into the solution from the heater, and or vent gas from the coil to the heater's burner depending on the temperature in the separator.
    Type: Grant
    Filed: January 16, 1979
    Date of Patent: April 15, 1980
    Inventor: Rodney T. Heath
  • Patent number: 4190326
    Abstract: A mirror disposed within and protected by a housing that is itself mounted to accommodate major position adjustments rotates and tilts about vertically and horizontally disposed axes to provide minor position adjustments with respect to the mounting axis for the mirror housing. Separate reversible rotate and tilt motors disposed within the housing and controlled by remote switches power such minor positon adjustments. One top or bottom end of the mirror is associated with and interconnected to a bushing establishing one fixed control pivot for localizing rotation and tilting of the mirror, while the opposite end of the mirror may be moved to varied angular positions with respect to said fixed control pivot whereby the mirror is tilted about a horizontal axis.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: February 26, 1980
    Inventor: Robert Brodbeck
  • Patent number: 4189706
    Abstract: A multiple speed detection and control device for vehicles includes a speed detector associated with the vehicle speedometer arranged to sequentially detect multiple, predetermined, speed values, and an electric junction box connected in the major electrical lines of vehicle and connected with the speed detector, with the junction box having special fuses for the various electrical circuits, whereby the speed detector disrupts the fuses at the predetermined speeds to disrupt one or more of the electrical circuits to cause a particular failure of the electrical functions of the vehicle circuits, indicating speed above a predetermined speed, to an ultimate vehicle shut down above a maximum speed.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: February 19, 1980
    Inventor: Knox, Leonard S.
  • Patent number: 4186844
    Abstract: A generally planar lid for rectangular trash bins, having a shortened rear wall and chamfered rear corners of the side walls, a leaf at each side of lid adjacent the rear wall, a leaf hinge point on the front of each leaf pivotally connected to the sides of the bin and spaced below the top edge of the side walls, a lid hinge on rear edge of the lid pivotally secured to a hinge point on the upper rear of the leaves, and a stop on a lower rear point of the leaves for impinging on the rear wall of the bin to limit pivotal movement of the plate.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: February 5, 1980
    Inventor: Raymond Swanson
  • Patent number: 4186833
    Abstract: A hinged cover container having ribbon spool storage and dispensing dowels in the cover, and a divided major container portion for storage of folded paper in one section and cards and ribbons in a smaller section. The inside of the cover is provided with loops of elastic ribbon for securing hardware useful for wrapping.
    Type: Grant
    Filed: September 13, 1978
    Date of Patent: February 5, 1980
    Inventor: Virginia L. Homan
  • Patent number: 4185372
    Abstract: An axle fitting tube with a key for riding in the axle keyway includes an end for contacting a tapered sleeve at the keyway and an impact member adjacent the key to concentrate impact force on a tapered sleeve key frozen in the keyway.
    Type: Grant
    Filed: October 26, 1978
    Date of Patent: January 29, 1980
    Inventors: Clifford A. Dupree, Charles Entz
  • Patent number: 4180237
    Abstract: A self contained hydraulic valve system, for controlling the flow of a normally gaseous fluid such as, for example, anhydrous ammonia, includes a hydraulic valve connected to a pressurized vessel holding said normally gaseous fluid, a master cylinder hydraulically connected to said valve and controlling the operation thereof, and a hydraulic connection between the hydraulic valve and master cylinder. In operation, when the manual lever of the master cylinder is depressed, the hydraulic fluid within the self-contained system is pressurized thereby forcing the hydraulic valve open.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: December 25, 1979
    Inventor: Clyde C. Wolf
  • Patent number: 4180145
    Abstract: A stationary frame for a forklift carriage having a simple electric hoist; supports a reciprocable hoist having extending forks. The carriage includes a carriage frame riding in upright rails formed of channels with upper rollers and lower rollers set at about 45.degree. for supporting the forklift in the frame and permitting free reciprocable movement thereof. The unit is useful for stacking and arrangement of pallets, or supporting portions of a palletized stack for retrieving material below the top one of the stack.
    Type: Grant
    Filed: July 17, 1978
    Date of Patent: December 25, 1979
    Inventor: Vidal D. Capps
  • Patent number: 4177623
    Abstract: A metal plate secured to a stirrup strap includes a pair of offset prongs for extending through spaced openings in a saddle strap, for fastening the stirrup strap to the saddle strap, and a central plate extension between the prongs prevents accidental removal of the fastener and aids the release of the fastener from the strap.
    Type: Grant
    Filed: March 20, 1978
    Date of Patent: December 11, 1979
    Inventor: Wayne W. Perry
  • Patent number: 4175563
    Abstract: A body fluid drainage apparatus or shunt for implantation in the inner ear or elsewhere includes an essentially rigid elongated tube having one open end and a closed, flexible end with a valve, a generally rigid housing fixedly secured to and telescoping over the closed end of said elongated tube, a pair of angularly, oppositely extending arms fixedly secured to the assembly, and a pair of plastic films, with open sides, secured to the apparatus enclosing the valve. When the valve is a slit valve, it is sealed in a flexible tube sealed to and extending a short distance beyond the elongated tube.
    Type: Grant
    Filed: October 5, 1977
    Date of Patent: November 27, 1979
    Inventors: Irving K. Arenberg, John B. Newkirk
  • Patent number: 4173458
    Abstract: A housing, with a freely rotating, actuated impeller, having a peripheral slot-like outlet, a central circular air outlet for attachment to a suction line, and an air inlet intermediate the two outlets in the housing providing direct communication with the impeller, whereby air entering the inlet rotatively actuates the impeller. By proportioning the housing and the rotor, about 90% of the incoming air is cleaned and goes through the central outlet for use, and about l0% of the air with centrifugally separated dirt exhausts through the peripheral outlet.
    Type: Grant
    Filed: October 5, 1978
    Date of Patent: November 6, 1979
    Inventor: Arthur G. Stiles
  • Patent number: 4173214
    Abstract: A stationary reflecting type solar radiation collector including a series of parabolic trough reflecting surfaces, each positioned to reflect incoming solar radiation in a generally vertical direction so as to form a concentrated line focus onto the overhanging collector heat systems arranged to provide heat collection at different seasons of the year as the focused line of heat energy moves horizontally with the changing angle of the sun. In one form, a heat storage unit is integrated with the collection unit providing a heat supply in off-sun times, and includes movable insulation means arranged to provide insulation during off-sun times for the heat storage unit.
    Type: Grant
    Filed: August 15, 1977
    Date of Patent: November 6, 1979
    Inventor: Arthur P. Fattor
  • Patent number: 4168843
    Abstract: A snow sled having braking and steering means on a toboggan-like main body having a substantially thin, flat main portion and a forward arcuate portion, said main body extending continuously from front to back and from side to side. Runners depend downwardly from a bottom surface of the main body, and a steering runner with a thin central blade is slidably and rotatably mounted on the main body having a steering arm extending from the steering runner for the sled operator. Braking means are provided by a pivotal plate, at the rear of the main body, pitched downwardly so that when lowered into the snow, the plate digs into the snow and forces snow upwardly and over the plate.
    Type: Grant
    Filed: February 14, 1978
    Date of Patent: September 25, 1979
    Inventor: Floyd D. Hager
  • Patent number: 4164630
    Abstract: A telephone card index, having a switch connected to the card finder for initially locking on to a memory section of a miniprocessor, a key aligned with each name line of the card locates the exact memory address of the number to be called with pre-recorded dial signals at the memory address for an individual name line, permits automatic telephone dialing of the selected number. A keyboard in the circuit, with a display permits adding, changing or recalling the recorded number at each address.
    Type: Grant
    Filed: November 14, 1977
    Date of Patent: August 14, 1979
    Inventor: Robert M. Brodbeck
  • Patent number: D253913
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: January 8, 1980
    Inventor: James E. Sullivan
  • Patent number: D254869
    Type: Grant
    Filed: December 19, 1977
    Date of Patent: April 29, 1980
    Inventor: Page M. Osburn