Patents Issued in November 29, 1977
  • Patent number: D246536
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: November 29, 1977
    Assignee: Scientific Hospital Supplies Limited
    Inventor: Michael William Dixon
  • Patent number: D246537
    Type: Grant
    Filed: June 9, 1976
    Date of Patent: November 29, 1977
    Inventor: Woodford W. Gordon
  • Patent number: D246538
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: November 29, 1977
    Assignee: Rowenta-Werke, GmbH
    Inventors: Franz Alban Stuetzer, Bernd Figur
  • Patent number: D246539
    Type: Grant
    Filed: April 26, 1976
    Date of Patent: November 29, 1977
    Inventor: Andre A. Nizetich
  • Patent number: D246540
    Type: Grant
    Filed: November 10, 1975
    Date of Patent: November 29, 1977
    Inventor: Bill M. Burleson
  • Patent number: D246541
    Type: Grant
    Filed: April 7, 1976
    Date of Patent: November 29, 1977
    Inventor: David W. Myers
  • Patent number: D246542
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: November 29, 1977
    Inventor: Evan B. Hull
  • Ski
    Patent number: D246543
    Type: Grant
    Filed: May 14, 1976
    Date of Patent: November 29, 1977
    Assignee: Kastle Gesellschaft m.b.H.
    Inventor: Rudolf Ferch
  • Patent number: D246544
    Type: Grant
    Filed: April 10, 1975
    Date of Patent: November 29, 1977
    Inventor: Mary Ann Paschal Brinkley
  • Patent number: D246545
    Type: Grant
    Filed: May 18, 1976
    Date of Patent: November 29, 1977
    Inventor: Luvenia C. Miller
  • Patent number: D246546
    Type: Grant
    Filed: September 15, 1976
    Date of Patent: November 29, 1977
    Inventor: David Kushner
  • Patent number: D246547
    Type: Grant
    Filed: September 15, 1975
    Date of Patent: November 29, 1977
    Assignee: Optronics, Incorporated
    Inventor: Duncan M. Payne
  • Patent number: D246548
    Type: Grant
    Filed: July 10, 1975
    Date of Patent: November 29, 1977
    Assignee: Ingersoll-Rand Company
    Inventor: Tim M. Uyeda
  • Patent number: D246549
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: November 29, 1977
    Inventor: Eugene H. Crane
  • Patent number: D246550
    Type: Grant
    Filed: March 3, 1976
    Date of Patent: November 29, 1977
    Assignee: P.P. & D. Pty. Limited
    Inventor: Charles Robert Herk
  • Patent number: PP4158
    Abstract: A new and distinct variety of miniature rose having small, very double, light pink flowers which are profusely borne in small clusters on a small plant having small, disease resistant leaves.
    Type: Grant
    Filed: November 1, 1976
    Date of Patent: November 29, 1977
    Inventor: Ralph S. Moore
  • Patent number: PP4159
    Abstract: There is disclosed an apple variety in which the tree is more dwarf than the parent with many fruit spurs, larger, deeper green, heavier and tougher leaves than "Hi Early" Delicious, long fruit, maturing and ready to harvest two weeks ahead of "Hi Early" and greater sugar test percentage with long-keeping quality.
    Type: Grant
    Filed: November 15, 1976
    Date of Patent: November 29, 1977
    Assignees: Claud Callahan, Marjorie McCormick
    Inventor: William E. Silvers
  • Patent number: PP4160
    Abstract: A novel miniature rose variety characterized by its coral pink to light red blossoms.
    Type: Grant
    Filed: January 24, 1977
    Date of Patent: November 29, 1977
    Inventor: Ralph S. Moore
  • Patent number: RE29481
    Abstract: In order to provide a multi-way directional fluid flow control valve arrangement which provides good control while being relatively cheap to manufacture, I use simple main valves all of which have parallel axes and all lie in a common plane, enabling me to form the main valves in a cheap manufacturing operation; the pilot valve however is more complex and has at least four connections, but because the pilot valve is smaller, this extra complexity does not make the whole valve arrangement more expensive.
    Type: Grant
    Filed: January 15, 1976
    Date of Patent: November 29, 1977
    Assignee: Fluid Devices, Ltd.
    Inventor: Donald Alexander Larner
  • Patent number: RE29482
    Abstract: .Iadd.The present invention provides a simplified control apparatus for a system which fills a plurality of containers with fluid. The control apparatus functions to hold and to advance containers on a continuously moving conveyor while synchronizing the filling cycle for the containers. .Iaddend.
    Type: Grant
    Filed: January 21, 1974
    Date of Patent: November 29, 1977
    Inventor: Sidney Rosen
  • Patent number: RE29483
    Abstract: A reclining chair adapted to be positioned in close adjacency to a room wall when in the upright sitting position and yet so structured as to allow ready assumption of any of a variety of reclined positions of occupancy without physical contact of any element thereof with the same room wall, the chair concept envisioning a fixed platform, a chassis slideable rectilinearly relative to the platform, and a body-supporting unit movable between the sitting and reclining positions relative to the chassis with a concomitant movement of a leg supporting unit between the retracted and extended positions respectively, a propeller link or other means connecting between the body-supporting unit and platform for propelling the body-supporting unit relative to the platform, with the chassis moving forwardly and progressively away from the wall as transition is made from upright sitting position to progressive positions of reclination, wherefore the body supporting unit is concomitantly moved forwardly away from the room wa
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: November 29, 1977
    Assignee: Dual Manufacturing and Engineering, Incorporated
    Inventor: Frank Manuel Re
  • Patent number: RE29484
    Abstract: A ceramic composition having a high dielectric constant which has good stability with temperature variation and the passage of time includes BaTiO.sub.3 in which the molecular ratio of Ba to Ti ranges from about 0.9 to 1.1 as the basic constituent and about 0.1 to 10 mol % of at least one compound selected from the group of Nb.sub.2 O.sub.5 and Ta.sub.2 O.sub.5 and about 0.01 to 15 mol % of at least one compound selected from the group consisting of In.sub.2 O.sub.3, Ga.sub.2 O.sub.3, Tl.sub.2 O.sub.3, MgO, ZnO and NiO as sub constituents.
    Type: Grant
    Filed: October 4, 1976
    Date of Patent: November 29, 1977
    Assignee: Nippon Electric Company, Limited
    Inventors: Kazuaki Utsumi, Norio Tsubouchi, Tomeji Ohno
  • Patent number: RE29485
    Abstract: As an improved way of effecting fast valving of turbines of power system steam-electric generating units for the purpose of improving the stability of power transmission over transmission circuits to which their generators make connection .Iadd., .Iaddend.when stability is threatened by line faults and certain other stability endangering events, and in which intercept valves are rapidly closed on a momentary basis, the procedure of intercept valve closure is supplemented by simultaneously initiating turbine and steam supply source control programs, which (a) .[.being.]. .Iadd.bring .Iaddend.into effect a sustained reduction in turbine driving power via employment of measures which may include full closing of some or all control valves and/or employment of preprogrammed control valve repositioning, with provision to automatically divert high pressure steam to the condenser or to atmosphere as a way to prevent discharge of steam through high pressure safety valves.
    Type: Grant
    Filed: November 10, 1975
    Date of Patent: November 29, 1977
    Inventor: Robert H. Park
  • Patent number: 4059852
    Abstract: A protective garment for minimizing impact-caused injury, primarily to the body of a motorcyclist, comprising a body-part-enclosing covering means including an effectively hollow body-part-contoured inflatable bag provided with ingress port means and exterior inflating tube means communicating the ingress port means and pressurized gas supply means and the normally closed ingress valve means relative to fixed portions of a motorcycle for forcible opening actuation of the normally closed ingress valve means upon forced abrupt separation of a motorcyclist's body from a motorcycle as a result of an accident, for causing the rapid discharge of compressed gas through the open ingress valve means, inflating tube means, and ingress port means into the inflatable bag whereby to bring about abrupt inflation thereof in a body-protecting manner.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: November 29, 1977
    Inventor: Stanley J. Crane
  • Patent number: 4059853
    Abstract: A tie clasp for supporting neckwear comprising a plate to be positioned on the front of a shirt collar and a hook mounted on the back of the plate for suspending the plate from the shirt collar. The hook defines an open-ended shirt collar receiving channel extending from adjacent the upper edge of the plate downwardly from the plate upper edge and away from the plate whereby upon placing a shirt collar within the hook receiving channel the lower edge of the tie clasp plate projects outwardly from the shirt. A neckwear receiving device is positioned on the back of the plate below the hook. The neckwear receiving device includes upper and lower parallel bars each segmented to define a central slot through which neckwear may be passed in suspending the neckwear from the receiving device bars with the neckwear ends draped in mutually lateral or overlaid positions, respectively.
    Type: Grant
    Filed: January 12, 1977
    Date of Patent: November 29, 1977
    Assignee: Jack Steinberg
    Inventor: George W. Girdler
  • Patent number: 4059854
    Abstract: An endoprosthetic joint formed by head and socket members which are adapted to be implanted in a thumb or a finger and can be suitably snapped together. The socket member is provided with structure exteriorly thereof, such as a pair of outwardly projecting webs disposed on diametrically opposite sides thereof, for permitting the muscles, ligaments and tendons to be sutured to these webs to thereby positionally relate same to the implanted joint, whereby proper balancing in the tensions imposed on the muscles and tendons is achieved during pivoting of the digit.
    Type: Grant
    Filed: January 3, 1977
    Date of Patent: November 29, 1977
    Assignee: Laure Prosthetics, Inc.
    Inventor: George R. Laure
  • Patent number: 4059855
    Abstract: A retractable cover mechanism for covering an open area, such as a swimming pool. The mechanism comprises a pair of parallel channels secured on a respective opposed side of an open area to be covered. A plurality of displaceable intermediate cylinders are provided in each of the channels between displaceable end cylinders. The intermediate cylinders are water-conducting and the end cylinder at a first common end of both channels is water-conducting. The end cylinders at a second common end of both channels have solid end walls which are non-water conducting. A first extensible conduit means is secured between facing ends of adjacent ones of the intermediate and end cylinders. Attachment means are secured to at least some of the cylinders and to a cover sheet to displaceably support the cover sheet between the pair of parallel channels. First and second conduit means are connectable to a source of water pressure.
    Type: Grant
    Filed: November 8, 1976
    Date of Patent: November 29, 1977
    Inventor: Carmel Riendeau
  • Patent number: 4059856
    Abstract: A swimming pool gutter including a combined gutter conduit and a sealed filtered water inlet conduit at the bottom of the gutter conduit. The gutter is formed from two sheet metal members joined by two exposed welds to form a deep-walled gutter capable of accommodating water surges and waves without flooding and having a sealed filtered water inlet combined therewith.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: November 29, 1977
    Inventor: James A. Patterson
  • Patent number: 4059857
    Abstract: A free standing toilet stool ventilating device for placing adjacent a toilet and ventilating fumes therefrom. The device having a reversible pivotable air inlet arm disposed between the top of the toilet bowl and the bottom of the toilet seat. The device providing an electric blower and charcoal filter for filtering the fumes. The housing further including a water overflow chamber with a floating ball valve for receiving overflow water from the toilet and discharging it therefrom to prevent water from contacting the filter and electric blower.
    Type: Grant
    Filed: December 20, 1976
    Date of Patent: November 29, 1977
    Inventor: Clarence E. Poister
  • Patent number: 4059858
    Abstract: Apparatus for clearing drain lines includes an appliance which may be held in sealed engagement over a drain opening and actuated with a sudden burst of gas pressure. The appliance includes a pressure chamber which can discharge into a sealing ring and which for each operation is initially closed off from the sealing ring by a rupturable metal diaphragm. While the appliance is held by hand with its pressure ring firmly sealed around the drain opening, gas pressure is increased in the pressure chamber until the diaphragm suddenly ruptures to release the compressed gas into the drain with a sudden hammer-like action. The gas pressure may be supplied from a pressure can or by pump. This metal diaphragm may be a conventional jar-cap as used for home canning, except accurately scored to rupture at a predetermined pressure.
    Type: Grant
    Filed: November 26, 1975
    Date of Patent: November 29, 1977
    Inventors: Reinhold Lambel, Steven Maynard
  • Patent number: 4059859
    Abstract: Life ring having apertured main body of foamed plastic with a secondary ring rigidly attached to it by connecting members.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: November 29, 1977
    Inventor: Evan B. Hull
  • Patent number: 4059860
    Abstract: A method and apparatus for forming shouldered tubular rivets is disclosed in which three forming operations are provided, two of which are performed in a single die station. In the first operation, the head end of the blank is squared and the inner end is trapped extruded. In the second operation, both the shoulder and the inner end of the blank are squared. During such second operation, the volume required to form the entire shank is confined within the die and the projecting portion of the blank is headed so that variations in blank volume appear as variations in the head. In the last or third operation, the tubular section is extruded on the inner end of the blank. An apparatus for performing the method is disclosed which permits the accurate positioning of a sleeve and an extrusion pin with respect to the die during the second operation to insure proper squaring of the inner end of the blank and the confinement of the exact volume of material required to form the entire shank of the rivet.
    Type: Grant
    Filed: June 11, 1976
    Date of Patent: November 29, 1977
    Assignee: The National Machinery Company
    Inventor: Paul A. Fick
  • Patent number: 4059861
    Abstract: The method of wet lasting the lasting margin of a shoe upper to the marginal edge of the bottom structure which comprises, progressively lasting the lasting margin of an upper to the margin of a bottom structure which has along its margin at least, a dry receptive adhesive coating and while so lasting the margin applying a liquid coating of latex in a controlled amount to the inner side of the lasting margin just before it is laid down.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: November 29, 1977
    Assignee: Compo Industries, Inc.
    Inventors: John J. Santos, Jr., Joseph V. Tassone
  • Patent number: 4059862
    Abstract: A double wraparound brush assembly for a vehicle washing apparatus including a control arm having one end pivotally mounted to the frame of the apparatus above the path of the vehicle, a brush arm having one end pivoted to the other end of the control arm, and a brush beam, supporting a pair of driven rotary brushes at each end, journaled at its middle portion to the other end of the brush arm, and control means for the control arm and the brush arm.
    Type: Grant
    Filed: June 18, 1976
    Date of Patent: November 29, 1977
    Assignee: The Smith Company
    Inventor: Shirley B. Ashton
  • Patent number: 4059863
    Abstract: The floor buffer includes an aluminum chassis to which the various operative elements of the floor buffer are affixed. More particularly, a buffer pad driver is journaled to the front end of the chassis and a propane tank is carried from the aft end of the chassis to which end the steering handle is affixed. An air cooled internal combustion engine is mounted to the chassis intermediate the pad driver and the fuel tank. The air cooled engine is mounted in heat exchanging relation with the chassis so that the chassis serves as a substantial heat sink for conduction cooling of the engine, in use.
    Type: Grant
    Filed: May 7, 1975
    Date of Patent: November 29, 1977
    Inventors: Robert C. Deuchar, Gene J. Waitzman
  • Patent number: 4059864
    Abstract: A scrubbing implement for an oven including a handle having telescoping portions which are locked together in adjusted relation to conform to the overall depth of the oven, means for rotatably mounting the handle on an elongated base and clamping the handle at a relative angle to the base so the implement can be inserted in the oven at an angle precluding undue bending of the user, and a sponge removably mounted on the base for cleaning the oven. The use of the implement also removes the necessity of the user coming into contact with the interior of the oven while cleaning the oven, avoiding the accumulation of dirt on the clothes and hands.
    Type: Grant
    Filed: August 24, 1976
    Date of Patent: November 29, 1977
    Inventor: Sharon Spresny
  • Patent number: 4059865
    Abstract: Brush bodies are held in recesses between webs for cleaning of a shoe by way of a foot mat of rubber, synthetic material or metal and the brushes project over the webs of the grate-formed mat. The brush bodies are insertable in the mat to be easily replaced when the brushes are worn whereby the wear on the basic body of the mat becomes reduced since the webs are used only for support and no longer for the cleaning function.
    Type: Grant
    Filed: June 30, 1976
    Date of Patent: November 29, 1977
    Assignee: Alveru S. A.
    Inventor: Achim D. Schmidt
  • Patent number: 4059866
    Abstract: A rope clamp having a sleeve of plastic malleable material with an axial center hole of substantially the same cross-section throughout the entire length of the sleeve. The wall thickness of the sleeve is thinnest at the mid portion thereof and thickest at the end portions thereof.
    Type: Grant
    Filed: June 1, 1976
    Date of Patent: November 29, 1977
    Assignee: Firma Bernex
    Inventor: Bernhard Rohland
  • Patent number: 4059867
    Abstract: The handle for utensils is of heat-insulating material preferably wood which is provided with an axial passage; at each end of the passage is a pocket having a radial cut-away portion extended through the periphery of the handle; a connector bar has a bent end extended through each pocket into the end of the axial passage; the other end of the bar extending at an angle to the handle is adapted to be fixedly secured or welded to a side of the utensil; the pockets prevent rotation of the handle.
    Type: Grant
    Filed: September 1, 1976
    Date of Patent: November 29, 1977
    Inventor: Robert J. Adamis
  • Patent number: 4059868
    Abstract: A revolving apparatus for automatically cutting open fowl hanging by the ankle joints from an overhead conveyor, having a number of cutting units regularly spaced about the circumference of the apparatus. The cutting units work in succession as they revolve about the central shaft of the apparatus moving along with the conveyor. Each cutting unit is also vertically movable down towards a fowl carried by the conveyor and away again from the fowl. Each cutting unit carries a ball shaped protrusion consisting of two separatable ball halves, one of which carries a knife in its upper part facing away from the other ball half. During the downward movement of each cutting unit it's closed ball halves are inserted into an opening in the fowl previously made by cutting out it's vent, whereafter the ball halves are spread and the fowl is cut open by the knife.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: November 29, 1977
    Inventor: Pieter Meyn
  • Patent number: 4059869
    Abstract: An animal holder to fix the abdominal portion of an animal in a hanging position with the head down for treatment restrained from movement. The holder comprises a stand and a tongs-like clamping member mounted thereon and comprising two clamps adapted to enclose the abdominal portion of the animal near the hind legs. One of the clamps is rotatable round a vertical axis and lockable.
    Type: Grant
    Filed: September 26, 1975
    Date of Patent: November 29, 1977
    Inventor: Mathias Dunstheimer
  • Patent number: 4059870
    Abstract: A device particularly for use in the home or by customers in restaurants, which facilitates the opening of clams or oysters. Known machines for opening oysters are of much too complicated construction to be of any practical value for use in the home or by customers in restaurants. This drawback is overcome by providing an oyster board which facilitates the opening of clams or oysters. The board is of simple construction in order to permit its use by adults and children alike. The improved oyster board comprises a base with a rear wall extending upwardly from the base. The base includes a receiving depression in the upper surface thereof, the depression being situated in the base adjacent at least one longitudinal groove in the rear wall. The at least one groove is situated adjacent the upper surface of the base, and is thereby adapted to receive an edge portion of an oyster or clam therein.
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: November 29, 1977
    Assignee: Amcar Industries, Ltd.
    Inventor: Morris Finkelman
  • Patent number: 4059871
    Abstract: This invention relates to a clamping device slidably supported upon an elongated body such as a cable, bar, tube or the like, in a sliding cylinder of selected size to accommodate the elongated body, the device having a pivotally supported cam-like surface to lockingly engage and clamp the elongated body in fixed clamped position upon the elongated body, and includes means for locking the clamping cam out of engagement with the elongated body, whereby ascent of a climber allows the clamping device to be drawn upward or downward as the climber ascends or descends a ladder or the like holding the clamping cam disengaged but easily released from its locking means for quick clamping engagement of the elongated body by any quick pull, by misstep and for safe support of the climber in clamping engagement of said elongated body, rope or the like.
    Type: Grant
    Filed: September 17, 1976
    Date of Patent: November 29, 1977
    Inventor: William E. Swager
  • Patent number: 4059872
    Abstract: Disclosed is a clasp assembly for gripping a submarine hydraulic hose or the like which is being suspended by a metal cable. The clasp comprises a tubular clasp body including two matching partial tubular clasp elements which are hinged together along one edge. Lock means which are provided to maintain the two elements together about the hose includes a flange which diverges from each clasp element. A releasable fastener means draws the two flanges toward each other to lock the clasp in its closed position. Each of the clasp elements is equipped with a liner of rubber-like material to provide a firm friction grip on the hose. Clamp means are provided on the exterior of one of the clasp elements for attaching the clasp assembly to a cable or the like used to suspend the hose.
    Type: Grant
    Filed: November 24, 1975
    Date of Patent: November 29, 1977
    Inventor: Domenico Delesandri
  • Patent number: 4059873
    Abstract: A twist-free continuous filament heather yarn of reduced streakiness and chevroning and muter appearance of the colors of the yarn making up the heather yarn when formed into a fabric is prepared by tensioning a plurality of twist-free crimped continuous filament yarns having a different color and/or dye receptivity in order to remove intra-yarn entanglement, passing the tensioned yarns side-by-side into a jet intermingling zone at a slower withdrawal rate from said zone. The heather yarn is characterized by substantially no twist between the yarns making up the heather yarn and by yarn-to-yarn randomly intermingled filaments forming blended areas of random length of filaments along the heather yarn randomly interspersed between unblended areas of random length along the yarn. The heather yarn is incorporated into a pile fabric.
    Type: Grant
    Filed: November 2, 1976
    Date of Patent: November 29, 1977
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Thomas Larson Nelson
  • Patent number: 4059874
    Abstract: An improved fabric cutting machine for cutting tubular fabric into strip form having simplified and manually controllable adjustment devices for selectively controlling the rate of withdrawal of the tubular fabric from its source, the desired width of the strip to be cut and for synchronizing the rate of rotation of the feed means for advancing the fabric to the cutting apparatus with the rate of rotation of that portion of the machine which supports the source of tubular fabric.
    Type: Grant
    Filed: July 9, 1976
    Date of Patent: November 29, 1977
    Assignee: Rockwell-Rimoldi S.p.A.
    Inventor: Luigi Pisani
  • Patent number: 4059875
    Abstract: Blades for tire rasps are disclosed in which the outer edge of their teeth have cutting edges inclined at a positive rake angle and cooperating buffing edges inclined at a negative rake angle, the teeth having other similarly inclined cutting and buffing edges at levels inwardly of the original outer tooth edge to which the teeth may be sharpened as the original cutting and buffing edges become worn.
    Type: Grant
    Filed: December 12, 1975
    Date of Patent: November 29, 1977
    Assignee: B & J Manufacturing Company
    Inventor: Wayne E. Jensen
  • Patent number: 4059876
    Abstract: A mass of alloy material is deposited on a valve seat and is heated to alloying temperature by a laser beam which sweeps around the valve seat thereby alloying the valve seat. While the alloyed material is still at a high temperature, the forming tool is pressed against the valve seat to shape the valve seat to a configuration which requires little or no grinding.
    Type: Grant
    Filed: November 3, 1976
    Date of Patent: November 29, 1977
    Assignee: General Motors Corporation
    Inventor: Edwin D. Ditto
  • Patent number: 4059877
    Abstract: Two methods are disclosed for forming two different bubble cap assemblies for mounting over holes in tray decks of a gas and liquid contact apparatus, as a fractionation tower.
    Type: Grant
    Filed: August 6, 1976
    Date of Patent: November 29, 1977
    Assignee: Texaco Inc.
    Inventor: John R. Powers
  • Patent number: 4059878
    Abstract: A condition responsive valve construction having a first housing provided with an internal chamber and an inwardly directed shoulder projecting into the chamber and defining a first valve seat on one side thereof and a spring seat on the other side thereof. An axially movable valve means is disposed in the chamber for controlling the valve seat. A spring is disposed between the spring seat and the valve member to tend to move the valve member in one axial direction in the chamber. A condition responsive device is carried by the housing and is operatively interconnected to the valve member to move the valve member in the other axial direction upon an increase in the sensed condition. One or more additional housing can be added to the first housing in stacked aligned relation therewith and with each new housing having a valve seat arrangement to be controlled by the valve member.
    Type: Grant
    Filed: August 19, 1976
    Date of Patent: November 29, 1977
    Assignee: Robertshaw Controls Company
    Inventors: Byron L. Jackson, Joseph P. Wagner