Patents Represented by Law Firm Scrivener, Clarke, Scrivener and Johnson
  • Patent number: 4539780
    Abstract: A storm cellar or the like is disclosed composed of a pair of portable upper and lower pre-cast concrete sections one of which seats in an inverted position on the other to define a closed compartment. Each section includes a portion of a stairway of conventional configuration, the portions matching when the sections are assembled to extend from the lower level of the top of the assembled cellar to near its floor through aligned openings in the walls of the sections, thus permitting the cellar to be fully buried in the ground while at the same time providing ready access to the cellar from ground level without requiring that any portion of the cellar itself protrude above ground level.
    Type: Grant
    Filed: November 29, 1983
    Date of Patent: September 10, 1985
    Assignee: Dalworth Construction Inc.
    Inventor: William C. Rice
  • Patent number: 4538588
    Abstract: A method forming a glazed tile with the edges of the glaze in the planes of the side walls of the tile including breaking protruding glaze with a compressible sheet of material.
    Type: Grant
    Filed: December 8, 1983
    Date of Patent: September 3, 1985
    Inventor: Stephen H. Nyman
  • Patent number: 4535507
    Abstract: The backfin lump of meat is removed from the prepared body of a cooked Chesapeake Bay blue crab by cutting the body along planes which are, respectively, outside the collar bones which internally bound the lump meat cavities and converge to the center line of the back thereby providing an opening to each lump meat cavity, and then removing the lump meat through the opening using a special tool.
    Type: Grant
    Filed: October 12, 1983
    Date of Patent: August 20, 1985
    Assignee: Sea Savory, Inc.
    Inventor: Theodore S. Reinke
  • Patent number: 4535022
    Abstract: Decorative tiles which may be bonded to the surfaces of columns and walls of a building are provided and a method for manufacturing the same is also disclosed. One surface of a tile blank made of a refractory material such as ceramic is coated with a metal layer by a metal spraying process so that a decorative tile looks gorgeous and even when a decorative tile is directly bonded to a concrete wall, it is not attacked or corroded.
    Type: Grant
    Filed: July 6, 1984
    Date of Patent: August 13, 1985
    Assignee: Aluteck Co., Ltd.
    Inventor: Chizuo Kato
  • Patent number: 4533024
    Abstract: A strut (40) whose effective length depends on the relative positions of two strut portions (44,46) adjustable with respect to each other is connected in parallel with a brake actuating mechanism (18). One of the strut portions (44,46) is subjected to the force of a biased adjustment member acting transversely of the longitudinal direction of the strut (40) and, upon actuation of the brake, tending to increase the length of the strut (40). The adjustment member cooperates with an intermediate member (24) which is disposed between two structural members (14",22) transmitting the actuating force (P) independently of the strut (40) and which is displaceable against the frictional resistance (Q) thereof, provided said resistance does not surpass a given value. Thus the possibility of adjustment is limited by the actuating force itself which is not transmitted by the strut and, for instance, may be hydraulic.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: August 6, 1985
    Assignee: Lucas Industries
    Inventor: Heinrich B. Rath
  • Patent number: 4527669
    Abstract: This specification discloses a friction pad assembly for use in a disc brake. The friction pad assembly has a pad anti-rattle spring having a coiled region intermediate its ends, the coils of said coiled region being axially spaced apart from each other and engaging in a slot in the backing plate, the slot and spring presenting planar surfaces which can interengage with each other. Thus, by virtue of the interengaging planar surfaces the coiled region can only, at most, rotate to a limited degree in the slot and thus, should one spring arm be broken, the planar surfaces prevent the coiled region from rotating within the slot when a force is applied to the other arm whereby that other spring arm can continue to function. Also, the location of the coiled region in the slot is space saving and the spaced apart coils allows the maximum spring performance to be achieved.
    Type: Grant
    Filed: April 18, 1984
    Date of Patent: July 9, 1985
    Assignee: Lucas Industries Limited
    Inventors: Carl Meyer, Hans G. Madzgalla
  • Patent number: 4528188
    Abstract: A polysaccharide PS-A obtained from plants belonging to the genus Epimedium and having the following physicochemical properties, a process for preparation thereof and use as phylactic and immunostimulating agents comprising the polysaccharide PS-A as an effective component:1. Elementary analysis: C=40.92; H=6.17; Ash=very small;2. Molecular weight: 75,000.+-.25,000 (average molecular weight);3. Decomposition point: 205.degree. C.;4. pH: 7.0 (solution of 100 mg of PS-A in 50 ml of water);5. Specific rotatory power: [.alpha.].sub.D.sup.19 =-23.6.degree. (in H.sub.2 O, c=0.527);6. Infrared absorption spectrum: .nu..sub.max.sup.KBr (cm.sup.-1)/3400, 2900, 1620, 1400, 1230, 1060;7. Ultraviolet absorption spectrum: Maximum absorption is not recognized in the range of 240-400 nm.;8. Outward form: White or faint brown, amorphous powder;9. Solubility:(a) Soluble in water;(b) Insoluble in methanol, ethanol, acetone, ethyl acetate, diethyl ether, hexane and chloroform;10.
    Type: Grant
    Filed: December 30, 1982
    Date of Patent: July 9, 1985
    Assignee: Zenyaku Kogyo Kabushiki Kaisha
    Inventors: Susumu Mitsuhashi, Muneaki Takase, Sosuke Yasui, Ichiro Washizawa, Kimitomo Yoshioka
  • Patent number: 4526122
    Abstract: Luff furling main and head sails are subject to sagging-off to leeward in heavy winds thereby decreasing the aerodynamic efficiency of the sails. The invention diminishes or eliminates this problem by providing a strip of sail cloth which may be interposed between the luff furling apparatus and a rigging member such as a mast or stay, the strip having a sliding connection with both members along their lengths whereby the load on the sail is transferred uniformly along the length of the rigging member and the furling apparatus is prevented from sagging to leeward.
    Type: Grant
    Filed: March 8, 1984
    Date of Patent: July 2, 1985
    Inventor: Fred H. Kluckhuhn
  • Patent number: 4519481
    Abstract: A suspension strut for a vehicle comprises a cylinder in which works a piston, and the piston is carried by a piston-rod which passes through an axial extension depending from a closure for one end of the cylinder. An annular chamber defined between the cylinder and the extension accommodates the whole of a volume of gas or air and a portion of a volume of hydraulic fluid which fills the remaining space in the cylinder and against which the piston works. A seal through which the piston-rod works is carried by the extension at a position which is always below the level of hydraulic fluid in the cylinder so that the gas or air is prevented from escaping past the seal by the presence of the hydraulic fluid.
    Type: Grant
    Filed: July 27, 1983
    Date of Patent: May 28, 1985
    Assignee: Lucas Industries Limited
    Inventor: Lawrence G. Nicholls
  • Patent number: 4518066
    Abstract: Sudden accidental or unintended movement of an automatic transmission into reverse with the engine running is prevented by substituting for the usual unitary control rod a two part arrangement, one being movable by the shift lever and the other being movable by a spring separator from the shift lever but arranged to exert a force only in the direction of a parking pawl and never in the reverse direction against any member connected to the detent plate. Thus it is impossible for a yielding cam spring to ever drive the linkage unexpectedly into reverse should a driver carelessly position a shaft lever between its reverse and park positions.
    Type: Grant
    Filed: September 2, 1983
    Date of Patent: May 21, 1985
    Inventor: William A. Barr
  • Patent number: 4516400
    Abstract: In a dual master cylinder assembly comprising two independently and simultaneously operable master cylinders, primary pressure spaces between primary and secondary pistons are interconnected by a pipe-line, and secondary spaces between the secondary piston and adjacent ends of the master cylinders are connected to a common auxiliary braking system through a pipe-line. Each secondary piston is provided with an arrangement of passages in communication at all times with a reservoir for fluid, and normally open primary and secondary recuperation valves provide communication between the passages and the respective pressure spaces when the pistons are in their retracted positions. Simultaneous operation of both master cylinders causes both pairs of primary and secondary recuperation valves to close followed by pressurization of the fluid in both pairs of primary and secondary pressure spaces, whereby to apply simultaneously the brakes on opposite sides of the vehicle and to operate the auxiliary braking system.
    Type: Grant
    Filed: May 4, 1982
    Date of Patent: May 14, 1985
    Assignee: Lucas Industries public limited company
    Inventor: Michael K. Tarplee
  • Patent number: 4511185
    Abstract: A brake pressure regulator for an hydraulic vehicle braking system. A first inlet chamber (14) and an outlet chamber (20) for a first brake circuit (HzI-RzI) are defined by piston surfaces of different sizes of a stepped piston (30) which controls a valve (40) disposed in a connection between these two chambers (14, 20). The pressure in a second inlet chamber (24) adapted to be connected to a second brake circuit (HzII-RzII) acts on an annular control piston (50) which is acted upon in opposite direction by a spring (60). The control piston (50) surrounds the stepped piston (30) without contacting the same and is sealed radially inwardly against a plug (16) which is inserted in the housing (10) and which in turn surrounds the stepped piston (30) in sealing fashion. When as switching pressure in both brake circuits (HzI-RzI, HzII-RzII) is surpassed, the stepped piston (30), aided by the control piston (50), adopts a position at which the valve (40) closes.
    Type: Grant
    Filed: June 16, 1983
    Date of Patent: April 16, 1985
    Assignee: Lucas Industries Public Limited Company
    Inventor: Uwe Wloczyk
  • Patent number: 4510832
    Abstract: A bundle of tubes filled with nuclear fuel is positioned in a machine with the lower end of the bundle adjacent a first rotary cutter which is operated to sever the lower ends of the tubes after which the bundle is moved to a position adjacent a second rotary cutter where the tubes are cut into short lengths by teeth carried by a second rotary cutter.
    Type: Grant
    Filed: March 24, 1982
    Date of Patent: April 16, 1985
    Assignee: Societe Generale pour les Techniques Nouvelles S.G.N.
    Inventor: Rene Guilloteau
  • Patent number: 4508198
    Abstract: In a disc brake the application of the brake is initiated by angular movement of at least one pressure plate with respect to a reaction member to cause the pressure plate to move axially into engagement with a friction disc which, in turn, is urged into engagement with a surface in a stationary housing. The angular movement is effected hydraulically by an actuator comprising a piston working in a bore of a cylinder, the axis of which is substantially at right angles to that of the brake. The piston acts through a part-spherical rocking thrust coupling associated with a pull-rod passing through the actuator with a substantial clearance, the inner end of the pull-rod being pivotally coupled to a lug on the pressure plate, and the outer end being adapted for connection to a hand lever by which the pull-rod can be moved in a brake-applying direction.
    Type: Grant
    Filed: April 29, 1983
    Date of Patent: April 2, 1985
    Assignee: Lucas Industries
    Inventors: Graham J. Gornall, Anthony G. Price, David Parry
  • Patent number: 4506768
    Abstract: A boot assembly for preventing ingress of dirt into one end of a bore in a housing in which a piston works usually consists of a first portion sealing against the housing adjacent to the end of the bore, a second portion sealing against the piston and a flexible web connecting the two. To prevent the second portion lifting away from the piston, to which it is conventionally attached by being stretched round a groove at the end of the piston, the boot assembly is combined with a plate, having its outer peripheral edge sealingly connected to the second portion, and an inner face in abutment with the adjacent end of the piston.
    Type: Grant
    Filed: September 12, 1980
    Date of Patent: March 26, 1985
    Assignee: Lucas Industries public limited company
    Inventor: David B. Innocent
  • Patent number: 4505669
    Abstract: For liquefying hot melt adhesive, a hopper is provided at its lower region with one or more discrete upwards projections (for example a single, fluted cone), with means for heating the projection(s). In use, a unitary mass of hot melt adhesive is lowered into the hopper to become supported on the projection(s), as a result of which the unitary mass is progressively melted and the melted adhesive flows from the bottom of the hopper.
    Type: Grant
    Filed: February 14, 1983
    Date of Patent: March 19, 1985
    Assignee: Dynamelt Limited
    Inventor: John Rogers
  • Patent number: 4503876
    Abstract: A control valve assembly incorporates a flow control valve, and a piston which are both biassed in the same direction against pressure in an hydraulic accumulator by first and second respective springs. Accumulator pressure in a control chamber also acts to urge the flow control valve in the same direction as it is biassed by the spring and pressure from a pump acts to bias the flow control valve in the opposite direction. A pilot dump valve controlling communication between the chamber and an outlet connection is normally biassed into a closed position by a third spring. The dump valve is adapted to open at a cut-out pressure to dump pressure from the chamber, and the cut-out pressure is determined by the area of the seating of the dump valve over which the pressure in the chamber acts, and the force in the third spring. A cut-in pressure at which the dump valve closes is determined by the area of the first piston and the force in the second spring.
    Type: Grant
    Filed: July 30, 1984
    Date of Patent: March 12, 1985
    Assignee: Lucas Industries public limited company
    Inventor: Glyn P. R. Farr
  • Patent number: 4501231
    Abstract: A heating system is provided in which a rotor is rotated within a body of liquid within a chamber to heat the liquid by friction, and the liquid is conveyed to a heat exchanger and then returned to the liquid heater. The rotor chamber of the liquid heater is surrounded by a jacket chamber to which cooled liquid passes from the heat exchanger and in which it is heated by convection from the rotor chamber and from which it passes to the rotor chamber.
    Type: Grant
    Filed: June 2, 1983
    Date of Patent: February 26, 1985
    Inventor: Eugene W. Perkins
  • Patent number: 4502006
    Abstract: An inductive displacement transducer is described in which the magnitude of the phase difference between A.C. current and voltage in a coil is dependent upon the axial displacement of a monitored object. The phase difference depends upon the axial position relative to the coil of a short-circuit turn which moves with the monitored object. A magnetic flux concentrator, which may be combined with the short circuit turn, enhances the flux linkage between the short-circuit turn and the coil. In order to sense the height of a vehicle suspension strut, the coil is mounted on a plastics dirt shield, the short-circuit turn is provided by a sleeve plated with an electrically conductive metal and secured to the strut cylinder. Various circuits are described for monitoring the height signals produced by the different suspension struts of a vehicle.
    Type: Grant
    Filed: October 7, 1983
    Date of Patent: February 26, 1985
    Assignee: Lucas Industries Limited
    Inventors: Alan Goodwin, Malcolm Brearley
  • Patent number: 4501736
    Abstract: The present invention provides an extract obtained by extracting a plant belonging to the genus Epimedium sp. with a mixed solvent of water and a water-miscible organic solvent or with water, defatting the obtained aqueous extract and collecting a high-molecular compounds-containing fraction from the defatted aqueous extract, a process for preparation of this extract, an antibacterial agent comprising this extract as an effective component and an antibacterial therapy by using this extract.
    Type: Grant
    Filed: August 8, 1983
    Date of Patent: February 26, 1985
    Assignee: Zenyaku Kogyo Kabushiki Kaisha
    Inventors: Susumu Mitsuhashi, Muneaki Takase, Sosuke Yasui, Ichiro Washizawa, Kimitomo Yoshioka