Patents Represented by Law Firm Carver and Company
  • Patent number: 4726352
    Abstract: The assembly includes a container having two side walls, a rear wall, a top wall and a bottom wall which define in part an interior. An openable and closable door is provided for selectively providing access to the interior, the door being able to move between closed, intermediate and open positions. There is a first apparatus, connected to the door and the container, for permitting the door to rotate about a first axis of rotation between the closed and intermediate positions. There is also a second apparatus, cooperating with the first apparatus and the door, for providing a second axis of rotation spaced apart from the first axis, and for permitting lateral movement of the first axis and arcuate movement of the door about the second axis to permit the door to move below the bottom wall of the container.
    Type: Grant
    Filed: September 19, 1986
    Date of Patent: February 23, 1988
    Assignee: Force 10 Marine Ltd.
    Inventor: George F. Radke
  • Patent number: 4471932
    Abstract: An eavestrough corner bracket made from an elongated bendable sheet strip with a longitudinal axis. The bracket has inner and outer portions folded about the longitudinal axis to produce respective corner side portions inclined to each other to define side walls of opposed corners which are generally complementary to adjacent intersecting inner and outer portions of the eavestroughing. The bracket has an intermediate portion disposed between the inner and central portions thereof, the intermediate portion having a plurality of folds to incline corner portions of the bracket for both an outside corner and for an inside corner of the bracket.
    Type: Grant
    Filed: April 30, 1982
    Date of Patent: September 18, 1984
    Inventor: Jacob B. Weiss
  • Patent number: 4445698
    Abstract: Skate adapted to derive motive power from the body weight of the user. The frame has vertical racks cooperating with gears on the foot support for maintaining the foot support in a generally horizontal position during vertical reciprocating movement thereof. Forward movement of the skate is achieved by a flexible tension link cooperating with the gears and a driving wheel via a pawl and ratchet combination and a recoil arrangement.
    Type: Grant
    Filed: January 5, 1982
    Date of Patent: May 1, 1984
    Inventor: James R. Stillwell
  • Patent number: 4424729
    Abstract: An accessory for use with a screw driver and screw to prevent the screw driver from accidentally sliding off the screw head. The accessory is a sleeve having a bore to accept freely the screw driver bit and screw therein to permit rotation of the screw driver and screw relative to the bore. A releasable securing structure is mounted on the sleeve so as to engage the surface to receive the screw when an inner end of the sleeve is adjacent the surface, so as to releasably secure the sleeve to the surface. One embodiment of the releasable securing structure includes suction cups mounted adjacent the inner end of the sleeve and positioned so that there is a clearance between the end of the sleeve and the cups to permit the cups to be deformed elastically from an inactive condition prior to attachment to the surface.
    Type: Grant
    Filed: August 13, 1981
    Date of Patent: January 10, 1984
    Inventor: Ralph S. Jacobson
  • Patent number: 4366424
    Abstract: Method of programming an electronic processor to control an apparatus in which a tool performs a series of discrete operations on a work piece. Initially a pattern is traced manually by a tracer to reflect working of the tool on the work piece with the processor in "Record" mode and input position and location signals are simultaneously generated and recorded to reflect the relative positions of the tracer and pattern. When programmed, the processor is set in "Playback" mode and output position and location signals are fed to apparatus to position tool on work piece reflecting pattern and tracer positions. For accurate positioning of tool and work piece, pattern is a template with tooling indexes that could be made on template in "Record" mode, if desired.
    Type: Grant
    Filed: May 23, 1979
    Date of Patent: December 28, 1982
    Inventor: Robert E. McKechnie
  • Patent number: 4353347
    Abstract: A portable cooker for connecting to a pressurized gas supply and being adapted for easy assembly and disassembly. When assembled, a rigid gas delivery tube extends from a gas bottle and carries a ventilated support having a fixed burner disposed centrally of the support. A dished cooking pan is supported on the support rim and is shaped so that when the cooker is dismantled for storage, the pan can be reversed on the support to form with the support an enclosure to receive the tube when disassembled. A pair of support handles extend from the support to engage the pan periphery when the cooker is dismantled and the pan is reversed, so as to latch the pan and support together. A pair of pan handles extend from the pan and cooperate with the support handles to reduce movement between the pan and support when assembled.
    Type: Grant
    Filed: May 15, 1979
    Date of Patent: October 12, 1982
    Assignee: Barba Grill Inc.
    Inventor: Kenneth J. Seed
  • Patent number: 4330242
    Abstract: A machine for extruding hollow cored concrete sections, wherein concrete forced into a travelling mold by augers and trailing mandrels form a cored concrete slab, wherein the mold is provided with a vibrating top plate assembly having forward and trailing sections, the forward section having a greater amplitude of vibration than the trailing section so as to minimize amplitude to vibration transferred to the concrete in the afterpart of the mold.
    Type: Grant
    Filed: January 2, 1981
    Date of Patent: May 18, 1982
    Inventor: George Putti
  • Patent number: 4274170
    Abstract: Collapsible kayak framework having a plurality of longitudinal members, formers and cockpit structure, which cockpit structure, when folded forms a portion of backpack frame. Longitudinal members extend between the bow and stern, and are releasably interconnected by the formers and the cockpit structure. Mid portions of the keelson, chine and gunwale member portions are interconnected so as to form two halves of a foldable cockpit structure, which halves are maintained apart when in the cockpit structure by releasable transverse deck members. The mid portions are hinged to each other for swinging together to form a compact frame forming basis of the backpack frame. When the structure is folded, the spaced transverse deck members extend downwardly from one gunwale member mid portion, lower ends of the deck members carrying ends of shoulder straps, and a belt portion to permit the complete folded kayak structure to be carried on a person's back.
    Type: Grant
    Filed: August 28, 1978
    Date of Patent: June 23, 1981
    Inventor: Douglass E. Simpson
  • Patent number: 4264064
    Abstract: Intermediate dogging device to limit lateral deflection of a log held in end dogging log carriage. When a log is machined, residual stresses within the wood, weight of the wood, and sawing forces tend to deflect unsupported portions of the log, reducing cut accuracy. An intermediate dog is mounted on carriage between end dogs generally adjacent central plane containing feed axis. The intermediate dog extends from carriage and engages the log extending between the end dogs to reduce movement of log relative to carriage.
    Type: Grant
    Filed: July 31, 1979
    Date of Patent: April 28, 1981
    Assignee: Kockums Industries Limited
    Inventors: Francis E. Allen, Ralph Wijesinghe
  • Patent number: 4257184
    Abstract: An animal trap comprises a base member with two jaws pivotally connected thereto. Rings extend slidably about adjacent side members of the jaws and springs bias the rings away from the base member and towards end members of the jaws to move the jaws from a horizontal, open position to a vertical, closed position. A bell crank is pivotally connected to the base member and has an upwardly moveable portion where bait is secured. An elongate rod is pivotally connected to the bell crank at one end and engages one of the side members at a second end, when the jaws are horizontal, to maintain the trap in the open position. When an animal tugs on the bait, the rod disengages from the one side member and the trap closes to trap the head of the animal.
    Type: Grant
    Filed: July 5, 1979
    Date of Patent: March 24, 1981
    Inventor: Randall P. Malone
  • Patent number: 4254940
    Abstract: A winch having a main frame on which a drum is rotatably mounted and which is unidirectionally driven by a drive shaft rotatably mounted in the frame, the drive shaft having a pair of axial gear rings rotatably mounted thereon and engageable in unidirectional driving engagement with the shaft, the gear rings meshing with the diametrically opposed pair of gear sectors which are oscillated by foot pedals attached thereto so that oscillatory motion of the gear sector results in unidirectional rotation of the drum.
    Type: Grant
    Filed: March 22, 1979
    Date of Patent: March 10, 1981
    Inventor: Olav Thyvold
  • Patent number: 4253643
    Abstract: A fire escape having a cable-carrying drum mounted for rotation on a fixed shaft supported by a frame wherein the speed of rotation on the drum when the cable is laid out is governed by a centrifugally-operated braking device, one braking element of which is fixed rigidly to the shaft and the other element of which is slidably and rotatably mounted on the rigid shaft and provided with a gear connection to the drum, movement of the rotating brake element into frictional engagement with the fixed braking element by a centrifugal governor rotatably mounted on the shaft and rotated by virtue of geared connection to the drum.
    Type: Grant
    Filed: April 23, 1979
    Date of Patent: March 3, 1981
    Inventors: Glen R. Forester, Arnold M. Bernard
  • Patent number: 4250717
    Abstract: Apparatus for utilizing waste water from a refrigeration system to cool the motor-compressor and associated coil of condenser tubing in that system. The apparatus features a motor-compressor around which is wrapped the condenser coil. The motor-compressor and condenser coil are contained within a water tank to which is directed waste water that has been collected from the meltdown of an ice making cycle or the condensate from a refrigerant evaporator. In applications where waste water production is insufficient a valve controlled supply of fresh water can be substituted therefor or used in conjunction with the waste water to effect cooling of both the compressor and condenser coils. Use of the waste water in this manner obviates the need for fans and associated motors to provide air-cooling of the condenser and for possible oil cooling of the motor-compressor.
    Type: Grant
    Filed: May 15, 1979
    Date of Patent: February 17, 1981
    Inventor: Cyril O. Stone
  • Patent number: 4250973
    Abstract: Rock drilling apparatus wherein a motor and chuck assembly is mounted for slidable movement on a mast and elevated and lowered by a pair of endless chains, the endless chains passing through openings in stabilizer units slidably mounted on the mast for vertical movement and which rotatably and slidably brace the drill stem. The chains carry detents which are arranged so that when the endless chains are operated to elevate the motor and chuck, the stabilizers are also elevated in spaced relationship so as to stabilize the drill stem.
    Type: Grant
    Filed: March 5, 1979
    Date of Patent: February 17, 1981
    Inventor: James D. Hall
  • Patent number: 4241950
    Abstract: Folding chair structure having four legs, seat portion supported by lateral seat members, and back portion supported by lateral back members hinged to seat members. Forward leg members extend upwardly and rearwardly from a forward position on floor and are hinged at rear of seat portion and then extend upwardly as the lateral back members. Rear leg members extend upwardly and forwardly from a rear position on floor and are hinged at front of seat so that when viewed laterally, forward and rear leg members cross each other at an intersection. Cross links are hinged between respective forward and rear leg members on each side of the chair and below the intersection and, in combination with leg members and lateral seat members, provide a crossed four-bar mechanism below seat. Forward arm support is hinged to forward seat portion and support arm members which are also hinged to back portion, to form a four-bar mechanism approximating to a parallelogram above the seat.
    Type: Grant
    Filed: May 4, 1979
    Date of Patent: December 30, 1980
    Inventor: Douglass E. Simpson
  • Patent number: 4240800
    Abstract: A novel oil absorbent comprising substantially sugar-free, hydrophobic, oleophilic bagasse prepared by saturating with water, removing the sugar, and then drying, which will absorb oil in an amount up to about 27 times its weight. The oil saturated absorbent is useful as a fuel.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: December 23, 1980
    Inventor: Karl O. P. Fischer
  • Patent number: 4236608
    Abstract: Caliper brake particularly for installation in locations where there is insufficient space for conventional caliper brakes of similar capacity, and also adapted to accommodate lateral shifting of the brake shoes due to deviating braking surfaces. Brake has a pair of caliper arms with brake shoes at outer ends thereof, and actuator with axis of extension and retraction disposed longitudinally of the caliper arms. A toggle structure cooperates with the actuator and caliper arms to force inner ends of arms apart when the actuator is actuated, and includes toggle links having inner ends hinged to actuator and outer ends hinged to inner ends of respective caliper arms. To permit the brake shoes to move laterally, the caliper arms are hinged on a mounting structure which cooperates with frame to permit relative swinging between mounting structure and actuator.
    Type: Grant
    Filed: October 30, 1978
    Date of Patent: December 2, 1980
    Inventor: Jacob Kobelt
  • Patent number: 4233771
    Abstract: A bait holder for holding minnow-type bait, having a ring within which the head of the bait has a wedged fit, and which is held in position by engagement of a pair of hooks at free ends of a pair of parallel arms extending aft from the ring, the ring having a fore and aft passage through which a leader can be extended and the holder secured against movement on the leader by engagement of a friction blocking device on one of the arms with the leader.
    Type: Grant
    Filed: May 7, 1979
    Date of Patent: November 18, 1980
    Inventor: John G. S. Robinson
  • Patent number: 4231274
    Abstract: A clamping assembly for clamping a block of wearable material for guiding a band saw blade to maintain the blade in alignment at a working station. The block of wearable material is formed with a dovetail adjacent a rear face remote from the wearing face of the block, and the clamping assembly includes clamping elements having inclined surfaces mating with the inclined surfaces of the dovetail to provide clamping and gripping forces and inwardly directed drawing forces in the block. The clamping elements are separated in the clamping region by a gap permitting them to be drawn towards one another and thereby to exert a clamping force on the dovetail of the block of wearable material. The clamping elements are dimensioned so that one element behaves as a cantilever spaced from the other element, which thereby maintains a fixed relationship with a supporting datum surface. The clamping elements may be integral with one another or provided with contacting surfaces adjacent the rear face thereof.
    Type: Grant
    Filed: March 8, 1978
    Date of Patent: November 4, 1980
    Inventor: Gerald J. Matchette
  • Patent number: 4230564
    Abstract: Reverse osmosis or ultrafiltration apparatus having first and second rotors revolving in the same direction about a central axis. The first rotor revolves at a higher speed and has an impeller which serves as a feed pump for the feed fluid. The second rotor revolves at lower speed and has a pressure vessel containing semi-permeable membranes which selectively permeate one component of a feed fluid, and has an integral diffuser casing for the feed pump. This arrangement reduces disc friction and diffuser hydraulic losses compared to conventional centrifugal machinery with stationary casings. The membranes are arranged so that centrifuge action within the rotating membrane assembly inhibits fouling and concentration polarization by differential buoyancy effects. The impeller can be centrifugal type with an externally surrounding diffuser, or it can be in an external impeller type enclosing a pitot tube pump type diffuser.
    Type: Grant
    Filed: July 24, 1978
    Date of Patent: October 28, 1980
    Inventor: Bowie G. Keefer