Patents Represented by Attorney Wendell Coffee
  • Patent number: 4823456
    Abstract: A standard size, steel oil well sucker rod coupling is machined to decrease its external diameter, producing a constant diameter along its length. Then, the coupling is machined to produce chamfers or bevels around the circumference on the ends, such that the diameter at the radial faces is less than at the body of the coupling. Next, abrasive blast-cleaning of the coupling produces a uniform, angular, anchor profile along the machined areas on the exterior of the coupling. Finally, a specially selected, fusion bonded, resinous coating is applied to the external surface including each radial face. The unique protective coatings impart abrasion resistance in a pumping oil well and serve as an electrical barrier to preclude electrochemical, corrosive, attack of the mild steel coupling core. Extended service life of the coupling is achieved.
    Type: Grant
    Filed: October 26, 1987
    Date of Patent: April 25, 1989
    Inventor: Kenneth W. Gray
  • Patent number: 4819837
    Abstract: A metal tube is substituted for the plastic tube commonly connected to the actuator of aerosol spray cans of contact cleaning fluid. The brass tube is electrically connected by a wire to the electronic component being sprayed. An alligator clip or banana plug at the end of the wire provides a convenient connection to the circuit board. In one embodiment, a resistor connects the brass tube to a metal button positioned on the actuator to contact the finger of a person depressing the actuator to operate the aerosol can, and the person is grounded. In another embodiment, the brass tube is grounded as well as connected to the circuit board, and the person operating the actuator is insulated from the brass tube. In either embodiment, the brass tube effectively dissipates any static electricity generated by the aerosol stream or spray to the selected ground.
    Type: Grant
    Filed: January 24, 1986
    Date of Patent: April 11, 1989
    Assignee: Tech Spray, Inc.
    Inventor: Melvin L. Goforth
  • Patent number: 4802604
    Abstract: The back door of a cotton module builder is raised and lowered by a hydraulic cylinder extending from above the back door to a latch shaft extending across the back door. Movement of the hydraulic cylinder latches and unlatches latch bolts upon the latch shaft as well as raising and lowering the back door.
    Type: Grant
    Filed: February 24, 1988
    Date of Patent: February 7, 1989
    Assignee: Scott Manufacturing, Inc.
    Inventor: Russell E. Lindsey
  • Patent number: 4798677
    Abstract: A separator is fed with liquid from a slaughterhouse which will be a mixture of water, tallow, and solids. The tallow rises to the top, and solids go to the bottom. Nearly clean water is withdrawn between the top and bottom. The nearly clean water is withdrawn into a plenum ring which is blocked at one point and has an outlet pipe connected adjacent to the block. Therefore, the liquid in the plenum ring flows in only one direction. The cross section of the plenum ring is many times greater than the cross section of the outlet pipe so that the flow within the plenum ring is gentle. Baffles in the plenum ring divert any tallow which rises to the top of the plenum ring back into the separator. A sump in the plenum ring adjacent to the outlet pipe draws off any solid which settle out in the plenum ring. A constant bleed is provided at the bottom of the sump to help withdraw the settling solids.
    Type: Grant
    Filed: July 24, 1987
    Date of Patent: January 17, 1989
    Inventor: David C. Irwin
  • Patent number: 4795100
    Abstract: A low pressure vibrator sprinkler is suspended by a flexible hose below an elongated horizontal elevated pipe. The pipe is mounted for movement upon a plurality of vehicles. The flexible hose is telescoped within a U-tube at the bottom so that the sprinkler is in a vertically upright position. The height of the sprinkler is adjusted by forming a loop in the tube. A band holds the loop to any given circumference.
    Type: Grant
    Filed: September 16, 1987
    Date of Patent: January 3, 1989
    Inventors: Rufus J. Purtell, Forest M. Hoch
  • Patent number: 4787771
    Abstract: A sucker rod string using composite rods is provided with socket units. The socket units are all box end units and are connected together with couplers having pin ends. Each of the socket units has a small angle tapered bore. Wedges between the rods and the tapered bore of the socket unit are prestressed by a threaded plug within the box end to a load equal to or greater than the design working load of the string.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: November 29, 1988
    Inventor: Loy F. Allen
  • Patent number: 4784755
    Abstract: Product, such as grain, is cleansed of particulate, such as dust, as it is being conveyed in the normal receiving, storage, and shipping processes. The particulate is sucked from the product by large volumes of low velocity air. The particulate is sucked from the product at a time that the product is near a port in the side of a discharge transition of the conveyor. It is sucked at the discharge transition because at that point, the grain is in motion and agitated, as well as being near the walls of the conveyor. Furthermore, the conveying of product will create a wind or movement of air which airs the sucking of the particlate from the product. The fan causing the suction is placed as near as possible to the conveyor so that the air and particulate, once removed, is moved through the particulate pipes under pressure rather than under suction. Also, all of the particulate pipes carrying the particulate and air are at an angle greater than 55.degree.
    Type: Grant
    Filed: June 10, 1986
    Date of Patent: November 15, 1988
    Assignee: Allied Millwrights, Inc.
    Inventor: Jimmy D. Taylor
  • Patent number: 4781393
    Abstract: To match the wires of a pickup to a trailer, a conversion box is provided. The jumper adapters are used to convert the plugs from the pickup to a six connection plug. Another adapter connects the wires from the trailer to a six wire connector. Therefore, a standard six wire box is used regardless of the fact that the pickup and the trailer may neither have six wires nor the same number of wires as the other.The wires from the pickup are connected to switch wires which have banana plugs on the end. The wires from the trailer are connected to receptacles so that when each switch wire is plugged into a receptacle, a connection is made. Lights on the box are used to indicate which of the truck wires are activated.
    Type: Grant
    Filed: June 26, 1987
    Date of Patent: November 1, 1988
    Inventor: C. Duane Jeter
  • Patent number: 4778534
    Abstract: A device is provided for easily and efficiently washing a water-based paint from a paint roller laden with such paint. The device is comprised of a circular cylindrical jacket held by a base cup having a closed lower extremity. An entrance channel penetrates said cup and jacket adjacent the closed lower extremity of the cup. A threaded coupling is associated with the cup in alignment with the entrance channel. In operation, a garden hose is coupled to the device and caused to direct a flow of water through the entrance channel and into the jacket. Said flow caused paint to be flushed from a roller inserted into the jacket.
    Type: Grant
    Filed: May 15, 1985
    Date of Patent: October 18, 1988
    Inventor: Warren E. Nell
  • Patent number: 4773479
    Abstract: A tubing string includes a series of tubing sections connected together by cuffs and extends from above the surface of the ground to an oil bearing formation in oil field service. To prevent corrosion of the string, each individual section of tubing has an internal bore which is tapered at the end and a corrosion resistant coating applied to the bore, including the taper. A corrosion resistant nipple is tapered on both ends to fit the taper within the bore of the ends of the tubing. The bore of the tubing, including the taper, has a corrosion resistant coating thereon. Therefore, the nipple which floats within the cuff retains the corrosive fluid being carried by the tubing within the bore, and the corrosive material does not contact the cuff, the threads, or any other part of the tubing.
    Type: Grant
    Filed: May 27, 1987
    Date of Patent: September 27, 1988
    Inventor: Weldon E. Guy
  • Patent number: 4766648
    Abstract: A cotton module is laid or placed on a horizontal deck. The deck is tilted so the module slides across a short slide into a header where the module is broken and fed into a hopper. Feeders at the bottom of the hopper feed the cotton into the gin at a rate as needed by the cotton gin.
    Type: Grant
    Filed: August 27, 1982
    Date of Patent: August 30, 1988
    Inventor: Donald J. Kerley
  • Patent number: 4759453
    Abstract: A baby bottle is marked with a luminescent marker. Therefore, when a baby, old enough to hold the bottle himself, wakes up hungry in the night, the baby can find the bottle due to its luminescence and feed himself without crying to wake his parents. The marker is a band of synthetic plastic with a pigment of inorganic zinc sulfide phosphor with double activators. The band is cylindrical. The bottle is blown within the band.
    Type: Grant
    Filed: June 26, 1987
    Date of Patent: July 26, 1988
    Inventor: James M. Paetzold
  • Patent number: 4757928
    Abstract: A litter basket is strapped to the rear side of the front seat of an automobile by passing the strap around the post of the head rest. Cup holders in the lid of the basket provide easy access to beverage containers therein.
    Type: Grant
    Filed: May 12, 1987
    Date of Patent: July 19, 1988
    Inventor: Donald V. Browne
  • Patent number: 4751494
    Abstract: A sign having a light with a flasher therein is stored beneath the seat of an automobile. If the motorist is in distress, the sign may be retrieved and plugged into the cigarette lighter of the automobile. Legs on the sign may be unfolded. With the window of the automobile rolled down, the motorist may place the sign on top of the automobile without unlocking the door of the automobile.
    Type: Grant
    Filed: December 31, 1986
    Date of Patent: June 14, 1988
    Inventor: Ordie A. Crotwell
  • Patent number: 4740101
    Abstract: A composite sucker rod to be formed into a rod string for an oil well is made by placing a coupler unit having a box end on each end of the rod. The coupler unit has a bore extending the full length of the coupler unit. For fabrication, the coupling unit is telescoped over the rod and a conic expansion portion formed on the end of the rod so that the conic expansion portion may be jammed into a tapered bore on the rod. The conic expansion portion is formed when the end is clear of the coupling unit so that it may be well bonded to the rod by precise application of adhesive, heat, and pressure. By using box end couplings on the rod and pin end couplings on coupling units between the rod it is possible to have a smaller overall outside diameter for any given strength of coupling unit.
    Type: Grant
    Filed: April 8, 1986
    Date of Patent: April 26, 1988
    Inventor: Loy F. Allen
  • Patent number: 4736877
    Abstract: A golf accessory holder is made rectangular from a metal plate. A magnet is attached to the plate with a rivet. Two pole pieces are bent outward from the plate to protect the magnet and to hold a golf tool. Two fingers in the middle of the plate hold a marker disc. Two tee clips hold tees with a stop bent from the plate to align them. Belt clips on the back of the plate are provided to hold the plate to the belt of the golfer.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: April 12, 1988
    Inventor: George R. Clark
  • Patent number: 4736947
    Abstract: A blocking sled for use in training football players includes runners which the player straddles to train him to keep his feet apart. The coach rides on a platform behind the athlete watching the athlete move forward and push the dummy at the front while keeping his body low and below chute bars above him. Outriggers outside the runners give the sled stability.
    Type: Grant
    Filed: July 3, 1986
    Date of Patent: April 12, 1988
    Inventor: Eugene C. Jenkins
  • Patent number: 4733897
    Abstract: Each ski boot of a pair will have a toe notch and a heel notch so that each pair of boots will have four notches. Boot carriers have four rigid members which fit into the four notches on ski boots. The members engaging the heel notches are connected to one end of an elastic assembly, and the member connecting to the toe notches are connected to the other end of an elastic assembly. The elastic assembly between the soles of the two boots will pull the boots so that they are held together at the soles. A handle is connected to the members engaged in the notches at one end to provide for a carrier for the boots.
    Type: Grant
    Filed: April 3, 1987
    Date of Patent: March 29, 1988
    Inventor: Roy L. Schuetzeberg
  • Patent number: 4728002
    Abstract: An angled top upon a beverage can permits the beverage to be drunk from the can without tilting the head.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: March 1, 1988
    Inventor: Israel G. Ybanez
  • Patent number: 4726529
    Abstract: Gated pipe is mounted upon trucks. A chain is provided at each end so that the gated pipe may be towed from one position to another. Tubes are connected to necks on the gated pipe to convey the water from a dry turn row upon the field to be watered. The gate valves are located in the tubes so that the tubes with the gate valves and other flexible material may be removed to be stored in a sheltered place. A surge valve and supply connection are placed upon a center truck for surge irrigation.
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: February 23, 1988
    Inventors: Jerry N. Nislar, Dean J. Heinrich