Patents Represented by Attorney William Anthony Drucker

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  • Fire-protective cellular service ducting
    Patent number: 4093818
    Abstract: The invention provides an assembly for accommodating service lines which comprises a length of ducting, a block of structural cellular material which fills the internal cross section of the ducting over at least a part of the length of the ducting, said block having cell walls which define cells which extend in the length direction of the ducting and on the cell walls a coating of intumescent material expandable to close the cells under fire conditions. With the block positioned where the ducting passes through a fire-resistant wall, the spread of fire through the ducting is usefully opposed. Using thermoplastic ducting, which has heretofore been contra-indicated, results superior to those obtainable with steel ducting are achieved.
    Type: Grant
    Filed: August 13, 1976
    Date of Patent: June 6, 1978
    Assignee: Dufaylite Developments Limited
    Inventors: Peter John Thwaites, Dennis William Green
  • Piezoelectric quartz vibrator with heating electrode means
    Patent number: 4091303
    Abstract: Heating electrode means provided directly on a quartz vibrator body in a specific angular range does not effect on the change in the resonant frequency which is normally to be caused by direct heating of the body so that a highly stable piezoelectric quartz vibrator can be provided without a constant temperature box.
    Type: Grant
    Filed: August 23, 1976
    Date of Patent: May 23, 1978
    Inventors: Chiba Tadataka, Kurashige Masakazu
  • Automobile mirror
    Patent number: 4089233
    Abstract: An automobile mirror device comprises a mirror mounted in a carrier which is connected by a universal joint to a base. A threaded spindle, driven by an electric motor, engages a split nut held by a spring steel stirrup pivotally connected to the carrier. When the mirror is tilted by rotation of the spindle to either of its end positions, the thread will disengage the nut by forcing apart the parts of the nut.
    Type: Grant
    Filed: August 19, 1976
    Date of Patent: May 16, 1978
    Assignee: Gebr. Marklin & Cie. GmbH
    Inventor: Walter Sebald
  • Ventilation grille or grating
    Patent number: 4089257
    Abstract: The invention relates to a grille or grating for fitting in the floor or wall or ceiling of an enclosed space, for example at the terminal outlet of a ventilating or air conditioning duct, and provides a grille which comprises a plurality of blades of generally rectangular cross-section which are press-fitted into spacedly arranged slots of a series of mullions. Said blades are received in said slots by spring clips located one in each slot and which clips have projections which lock said clips in said slots when the blades are inserted and reverse barbs which prevent withdrawal of said blades.
    Type: Grant
    Filed: April 26, 1976
    Date of Patent: May 16, 1978
    Assignee: Engineers & Metalworkers Ltd.
    Inventor: James Dunne
  • Air micrometer
    Patent number: 4088009
    Abstract: A comparison-type air micrometer having a differential pressure transducer has first and second subbranch pipe lines extending respectively to a standard gauge and a workpiece. Due to activation of an output correction circuit connected to an amplifier for the transducer output, measurement errors can be minimized and zero adjustment becomes easy.
    Type: Grant
    Filed: April 19, 1976
    Date of Patent: May 9, 1978
    Inventor: Akira Fukuda
  • Frame for printed circuit cards
    Patent number: 4089043
    Abstract: Chassis comprising cross members joined by slides intended to hold printed circuit boards. The end of the slides is shaped to engage in, and be centered between the arms of an extruded section, the cross-section of which resembles a spring clamp.
    Type: Grant
    Filed: October 5, 1976
    Date of Patent: May 9, 1978
    Assignee: La Telemecanique Electrique
    Inventors: Gilbert Fraboni, Jean Neyroud
  • Amplitude and frequency adjustable vibration generator
    Patent number: 4088223
    Abstract: This vibration generator intended more particularly for impressing a vibratory motion to vibrating apparatus such as handling circuits and treatment stations for loose materials and products comprises an excitation eccentric rotatably driven from a motor and adapted, during at least one fraction of its stroke, to co-act with a roller lined with resilient material mounted in a fixed position on the apparatus, the axis of rotation of this eccentric being coupled to means controlling its movement substantially in the direction towards the apparatus. Thus, the amplitude and frequency of the vibratory motion can be modified while in operation, either manually or automatically.
    Type: Grant
    Filed: September 28, 1976
    Date of Patent: May 9, 1978
    Assignee: Roger Brigolle
    Inventor: Olivier P. Bertrand
  • Dual-purpose ejector for aircraft load jettisoning mechanism
    Patent number: 4088287
    Abstract: In a telescopic retractable ejector, the driving gas is allowed to flow freely with the maximum efficiency by compensating the pressure drop resulting from the gas expansion during the piston extension with a concomitant and automatic increment in the surface area of the pistons which is exposed to the gas pressure.
    Type: Grant
    Filed: February 4, 1977
    Date of Patent: May 9, 1978
    Assignee: R. Alkan & Cie.
    Inventors: Jean H. Hasquenoph, Pierre F. Coutin
  • Flooring elements
    Patent number: 4087948
    Abstract: A flooring element having a moulded body and a partially raised surface which is of a material having a relatively high coefficient of friction, preferably the elements are provided with interlocking lugs so that a floor covering can be built up from a number of them.
    Type: Grant
    Filed: January 13, 1977
    Date of Patent: May 9, 1978
    Assignee: Ferodo Limited
    Inventor: Peter G. Mellor
  • Fluid coupling
    Patent number: 4086766
    Abstract: A fluid coupling comprising a first member secured on a first shaft, a second member secured on a second shaft in axial alignment with said first shaft, and an annular fluid race chamber, one of said members having a vaned annulus within said fluid race chamber and the other said member presenting at least one gate into the fluid race chamber, said gate, or each gate, being arranged to allow the vaned annulus of the vaned member to pass relative thereto while obstructing the circumferential flow of fluid along the race chamber and whereby, when the race chamber is charged with fluid and the assembly is rotated, the fluid flows in the race chamber generate to a pressure gradiant acting circumferentially of the axis of rotation to create a pressure difference across the, or each, gate to impart rotation to the gated member.
    Type: Grant
    Filed: April 15, 1976
    Date of Patent: May 2, 1978
    Inventor: Helmut John Stieger
  • Manipulator
    Patent number: 4087083
    Abstract: Disclosed is a manipulator which is particularly suitable for tapping a furnace. The manipulator includes an elongate arm which is axially reciprocable and rotatable in a vertical and a horizontal plane, and a handle for operating the arm for its axial reciprocal movement and vertical or horizontal rotation. The manipulator is particularly characterized by the provision of a bilateral servo system interconnecting between the arm and the handle for feeding back to the handle any variation in the force acting on the arm under operation.
    Type: Grant
    Filed: June 9, 1976
    Date of Patent: May 2, 1978
    Assignees: A. Daidoseiko K.K., B. Denkikagakukogyo K.K.
    Inventors: Goro Kozuka, Akira Matsui, Yoshiaki Yoshida, Katsuhiko Fujimoto, Shigeo Okada, Seiji Nonoyama, Yukihiko Kato, Hideshi Hirose
  • Process for freezing cooked rice
    Patent number: 4086369
    Abstract: A process for freezing cooked rice utilizes a rotary drum, and blade elements rotated within the drum. A mass of cooked rice is fed into the drum, and a liquid refrigerant is jetted into the drum for freezing the rice. The mass of rice must be separated into individual grains. This is achieved by impact of the blades against the mass of rice. The degree of impact must be sufficient to separate the mass into individual grains, but must not be such as to damage the grains. The invention selects a range of speeds of circumferential rotation of the blades which gives separation without damage.
    Type: Grant
    Filed: November 16, 1976
    Date of Patent: April 25, 1978
    Assignee: Japan Oxygen Co., Ltd.
    Inventors: Fumio Mutoh, Hiroshi Koizumi, Jun Yamasaki, Toshifumi Ando
  • Grave digging machine
    Patent number: 4085531
    Abstract: An apparatus for the mechanical digging of graves has a frame which can be adjusted in width to enable it to pass between headstones in a cemetry. A carrier is vertically adjustable in the frame, and a digging assembly is traversable longitudinally within the frame. A bucket conveyor and motorized digging attachment are carried on a rigid structure which is vertically adjustable with respect to a sub-frame of the carrier.
    Type: Grant
    Filed: March 14, 1977
    Date of Patent: April 25, 1978
    Inventor: Georges Aubert
  • Frame and sash for doors and windows
    Patent number: 4084361
    Abstract: A frame and sash construction for doors and windows has profiled beams of chair-shaped cross-section, the improvement being that an opening of an elongated slot in a foremost leg portion is directed upwardly towards a seat portion to receive a sealing gasket forming a packing for a window glass or mounting ledge. A backrest portion has a greater height than a rear leg portion. The seat portion is formed with a pair of ribs with opposed flanges to receive locking rods or hinge plates, and the sides of the leg portions facing each other have parallel grooves to receive ribs of the gaskets.
    Type: Grant
    Filed: July 20, 1976
    Date of Patent: April 18, 1978
    Inventor: Finn Aspaas
  • Character recognition system
    Patent number: 4085401
    Abstract: The invention relates to pattern recognition of binary numbers corresponding respectively to the different elementary zones of the pattern of a character. The system consists in defining the orientation of the character in its various points which are then supplied to different memories according to their orientation. The character is then characterized by 21 binary variables defined by the existence or absence of given orientation segments in 21 predetermined zones. These variables are decoded.
    Type: Grant
    Filed: February 10, 1976
    Date of Patent: April 18, 1978
    Assignee: Agence Nationale de Valorisation de la Recherche
    Inventors: Alain Chehikian, Gerard Bouvier
  • Clutch control device for cable traction apparatus
    Patent number: 4084788
    Abstract: The clutch device, adapted to be associated with a traction apparatus provided with a release device comprising two rocking levers, comprises a clutch engaging member associated with one of the rocking levers in order to modify the normal movement of this rocking lever and a clutch control member associated with the other rocking lever and adapted, when actuated, to provide a simultaneous opening of the two clamps of the apparatus.
    Type: Grant
    Filed: April 26, 1977
    Date of Patent: April 18, 1978
    Assignee: Tractel S.A.
    Inventors: Andre Desplats, Michel Cavalieri
  • Apparatus for regeneration of skiing courses
    Patent number: 4083131
    Abstract: A method for preparing and regenerating skiing courses wherein the snow is broken up, crumbled and deep-frozen in loosened condition and then a hard course covering is produced by fine levelling and smoothing.An apparatus for carrying out the method comprises a frame mounted on runners and carrying planing bodies which can be adjusted to one position to dig into and break up the snow and to a second position to level and smooth the top surface of the broken up snow.
    Type: Grant
    Filed: March 29, 1977
    Date of Patent: April 11, 1978
    Inventor: Max Auer
  • Escape device
    Patent number: 4083438
    Abstract: The present invention relates to a descent or escape device which can be used in a safe and easy manner as a means of emergency escape upon occurrence of a fire in hotels and other buildings, and also as a safety means for working in high places. The escape device is used together with a single rope and has such a structure that said rope is always stressed by the load of a person's body weight, thereby causing a braking action to control the speed of descent. The descent or escape device therefore ensures easy and safe descent at a desired speed of descent by appropriately manipulating an operating rod of the descent device.
    Type: Grant
    Filed: September 10, 1976
    Date of Patent: April 11, 1978
    Inventor: Kuninori Handa
  • Cleaning and static-removing device for gramophone records
    Patent number: 4082294
    Abstract: A device for cleaning and for removing static from revolving gramophone records is mounted on a deck radially beyond the turn-table and has a horizontal guide which can be swung laterally over the record, a slider carrying a cleaning element and/or a static removing element being movable along the guide as a result of engagement with the grooving of the record.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: April 4, 1978
    Assignee: Metrosound Audio Products Ltd.
    Inventors: Mark Stanley Myers, Richard George Bowler
  • Apparatus and method for measuring the time taken for a change in viscosity to occur
    Patent number: 4081242
    Abstract: An apparatus for measuring the time taken for a change to occur in the physical state of a material or medium, such as the time of appearance of a clot in a blood sample, includes a jar whose bottom may serve as a circular track for a ball, a ball able to roll around the track, a support for the jar maintaining the bottom of the jar and track in a plane inclined in relation to the horizontal plane, a means for rotating the support and jar whereby the ball remains at the lowest point of the track when the material is in the liquid state but is carried around the track by the more viscous material when that has changed its state, and a means of detecting the movement of the ball.
    Type: Grant
    Filed: July 12, 1976
    Date of Patent: March 28, 1978
    Inventor: Antoine Girolami