Patents Represented by Attorney Wendell Coffee

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  • Check valve for rod out
    Patent number: 4391289
    Abstract: A ball check valve connects to a duct leading from a process pipe to a flow transmitter, pressure gauge or sampling analyzer. A unique check valve is connected to the distal end of the straight-through duct. A cleaning rod impales a packing gland which is connected onto the check valve when cleaning is initiated. The cleaning rod is inserted through the check valve and into the duct to clean debris without the loss of any fluid while maintaining full process pressure.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: July 5, 1983
    Inventor: Donald L. Adams
  • Heater
    Patent number: 4387669
    Abstract: A portable oil field heater heats a liquid water-petroleum mixture by passing it through a single continuous path primary coil, and then a single continuous path secondary coil. The continuous path primary coil extends along the walls of the heater, and the secondary coil is a bundle above an LPG burner. The air for combustion is introduced from the top of the heater through false walls to beneath a false floor beneath the burner. Thus, it is not necessary to have insulation (particularly fire brick) along the sides of the heater; thereby greatly reducing weight and maintenance. The safety of the unit is greatly improved by introducing the combustion air from a height well above the level of the burner.
    Type: Grant
    Filed: March 29, 1982
    Date of Patent: June 14, 1983
    Assignee: Murrell's Welding Works, Inc.
    Inventor: Billy G. Brown
  • Controlled ring drive
    Patent number: 4385487
    Abstract: The revolving ring on a spinning machine is rotated by a belt encircling the bottom of the ring holder. The drive pulley is located below the ring upon the spindle rail. An idler is mounted upon the draw works support and directional pulleys are mounted upon the ring rail so that as one portion of the belt from the drive pulley to the ring rail is decreased, that portion of the drive belt from the ring rail to the draw works is increased.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: May 31, 1983
    Inventors: Manuel Costales, Moustafa I. Hakki
  • Tangentially driven ring
    Patent number: 4383402
    Abstract: The revolving rings on a spinning machine, as seen in U.S. Pat. No. 4,112,666, are rotated by a belt encircling six of the rings. Idler pulleys push the belt tangentially against the rings so that they are driven by the belt being tangentially pressed against them.
    Type: Grant
    Filed: May 30, 1979
    Date of Patent: May 17, 1983
    Inventors: Manuel Costales, Moustafa I. Hakki
  • Stabilized dump trailer
    Patent number: 4382631
    Abstract: A seed cotton transport is provided to transport seed cotton from the cotton stripper or harvester to a module builder. The basket upon the trailer or transport is pivoted about a point which is elevated above the sides of the module builder which is approximately eleven feet above the surface of the ground. The pivot is outboard of the wheels of the trailer. In the dump position, the weight is primarily to one side and as indicated above is very high. To prevent the trailer from overturning, stabilizing struts are hydraulicly extended any time the tilt or dump cylinders are pressurized to elevate the basket. A restricted one-way valve is used to insure that the cylinders operate in proper sequence.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: May 10, 1983
    Assignee: Harris & Thrush Manufacturing Company
    Inventor: Don R. Johnson
  • Vibrating scraper
    Patent number: 4381604
    Abstract: A razor blade holder includes a base plate and a top jaw. A cylindrical sleeve is attached to the base plate by two loops on the back of the base plate going under the cylindrical sleeve and one loop on the back of the plate over the cylindrical sleeve. A holding screw extends through a hole in the top jaw into a tapped hole in the base plate. The top jaw is curved from the front to the back so that tightening the holding screw will tightly hold the razor blade located between the base plate and the top jaw. A set screw radially in the sleeve secures the sleeve to the engraving point of a vibrating engraver. Therefore, operation of the engraver will vibrate the blade to aid in the scraping action.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: May 3, 1983
    Inventor: Milton C. Horst
  • Method for coating a food product on a stick
    Patent number: 4379795
    Abstract: A process for preparing and cooking corn dogs which are batter coated weiners upon a stick has a fry tank and coating bin mounted on a frame. Food articles are impaled by sticks driven through clasps in slots in a stick clamp. The food articles are dipped into a coating substance by elevation of the coating bin. The articles are elevated by rotating or flipping them above the lip of the fry tank and immersed in hot grease within the fry tank, cooked, and then elevated by rotating or flipping them out of the fry tank. The sticks are unclasped from the stick clamps and placed on a receiving tray. Thermostatically controlled heating elements suspended above the floor of the tank heat the grease.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: April 12, 1983
    Assignee: Automated Food Systems, Inc.
    Inventor: Glenn E. Walser
  • Automatic ice bagger
    Patent number: 4368608
    Abstract: A measured amount of water is frozen in a tray and cubed. The cubes are dropped directly into a bag placed under a chute. The ice drops responsive to the defrosting of the tray which releases the cubes. When the defrosting cycle of the ice maker is complete the tray moves up which moves an attached chain up to unclog any ice jam in the chute. Then the freezing of the ice begins again, a bag-carrying platen moves away from the chute and the bag is heat sealed. The bag, full of ice, is then released and dropped into a cold storage bin below the bagging mechanism.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: January 18, 1983
    Assignee: Texas Aim, Inc.
    Inventor: Jimmy C. Ray
  • Cellular flow system and method
    Patent number: 4362627
    Abstract: A plurality of vortex cells are established in a tank of sea water. Each vortex cell is an individual unit with little mixing with adjacent cells. Cationic and anionic resins are introduced into an initial vortex cell. The resins are diffused through serially adjacent vortex cells and withdrawn from a final vortex cell. Sea water is added to the final vortex cell and purified water is withdrawn from the initial vortex cell, thus counter-flowing the resins and sea water. Water is transferred between cells by pumping. The exhausted resins are rejuvenated using a similar system. The materials removed during the rejuvenation are valuable by-products.
    Type: Grant
    Filed: September 13, 1978
    Date of Patent: December 7, 1982
    Inventors: Anderson B. Fly, Charles B. Fly
  • Mineral leaching
    Patent number: 4360500
    Abstract: Uranium ore is crushed and formed into a slurry. The slurry is pumped into a leaching tank and classified by a sparge tube projecting water at teeter velocity at the bottom of the ore bed. Thereafter, a second ore bed is pumped by the slurry into the tank and the second bed classified. This is repeated until there are four or five ore beds in the tank.Thereafter, the ore is leached by passing liquid up from the bottom of the tank at velocities less than teeter velocities so that the bed remains classified.After leaching, the ore is formed into a slurry and the slurry pumped from the tanks to disposal.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: November 23, 1982
    Inventor: Anderson B. Fly
  • Dike irrigation
    Patent number: 4359297
    Abstract: A furrowed irrigated field is diked and water is applied to the furrows. The water is prevented from running down the furrows by the dikes and therefore stays in the approximate location where applied. The water is applied to the furrows from an elevated pipe at right angles to the furrows. The pipe moves along the furrows. At each furrow to be irrigated, a drop pipe extends downward, terminating a short distance above the ground. A sock or flexible drop hose is attached to the end of the drop pipe. The hose drags along the ground so that there is a minimum of erosion to the soil or evaporation of the applied water.
    Type: Grant
    Filed: October 9, 1980
    Date of Patent: November 16, 1982
    Inventor: Carl E. Butler
  • Settable orifice
    Patent number: 4357863
    Abstract: An adjustable orifice in the steam supply line to a gelatinizer has a pair of facing flanges. An orifice plate between the flanges is adjusted with the orifice offset to the bore through the flanges so that the proper amount of steam is supplied to the gelatinizer. After proper adjustment, the plate is clamped in place and all portions of the plate extending beyond the flanges are cut off to prevent the flow rate from being changed by unauthorized personnel.
    Type: Grant
    Filed: February 6, 1978
    Date of Patent: November 9, 1982
    Inventor: George W. Parks, Jr.
  • Automatic furrow guide
    Patent number: 4352460
    Abstract: A furrow guide on one end of the moving pipe of an irrigation system determines the horizontal distance from the end of the pipe to a furrow. The determination of this horizontal distance is used to control functions of the irrigation system such as to guide the direction of travel of the traveling pipe. Also, the furrow guide is used with an automatic irrigator to guide the valve opener to the valve. The automatic irrigator has all elements operating automatically, including the starting of the engine and the complete movement of the system.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: October 5, 1982
    Assignee: Tri-Matic, Inc.
    Inventor: Rufus J. Purtell
  • Module dump
    Patent number: 4347696
    Abstract: Lift arms are mounted upon a cotton module builder. Cotton harvested from the field is placed into a basket which sets upon a convex guide upon a trailer. The trailer is pulled by a tractor to the module builder alongside the arms. The guide, together with the basket, is moved laterally toward the module builder. The arms are actuated to lift the basket from the guide to above the module builder. As the basket moves above the module builder a trip upon the module builder unlatches a door formed by one of the sides of the basket allowing the cotton to fall from the basket into the module builder. After the cotton has emptied into the module builder the basket is returned to the guide upon the trailer. The basket on the trailer is then moved to a harvester and refilled with harvested cotton.
    Type: Grant
    Filed: March 20, 1981
    Date of Patent: September 7, 1982
    Assignee: Harris & Thrush Manufacturing Company
    Inventor: Don R. Johnson
  • Surgical ground detector
    Patent number: 4343308
    Abstract: An electrosurgical grounding pad has a temperature sensor to prevent skin burns. A paraffin insulated conductor is embedded in a conducting gel medium so that before a burn-producing temperature exists, the insulation melts and connects the conductor to ground. An alarm detects the presence of the ground and alerts operating room personnel of the burn condition.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: August 10, 1982
    Inventor: Robert D. Gross
  • Variable speed transmission
    Patent number: 4336724
    Abstract: A variable speed transmission is provided with a coaxial input and output shaft. Bevel gear on the output shaft has meshed thereto pinions carried on a journalled cross shaft on the input shaft. The degree at which the pinions are driven or idle depend upon a leverage arrangement including a rim disc attached to the pinions.
    Type: Grant
    Filed: May 28, 1980
    Date of Patent: June 29, 1982
    Inventor: Pete Mize
  • Working board for drilling rig
    Patent number: 4335792
    Abstract: A working board is attached to an oil derrick for a workman to stand upon while racking pipe. The board has arcuate slots with inner floor members and pivoting door covers for use when pipe is not in the slots thereby substantially eliminating the possibility of a workman falling. Pusher arms move the pipe to ready access for making the string.
    Type: Grant
    Filed: August 7, 1980
    Date of Patent: June 22, 1982
    Inventor: Michael S. Mahan
  • Wet rope weed killer
    Patent number: 4332106
    Abstract: Liquid herbicide is stored in a reservoir located above synthetic ropes. Headers and manifold tubes fluidly connect the reservoir with the ropes. As the herbicide comes down from the reservoir, it is effectively force fed into the ropes. The length of the rope stays wet due to the forced feeding. As a rope or plurality of the ropes comes into contact with a weed, a dose of herbicide is applied.
    Type: Grant
    Filed: October 16, 1978
    Date of Patent: June 1, 1982
    Inventors: Joseph J. Barton, IV, Bobby G. Boyd
  • Film cleaner
    Patent number: 4326315
    Abstract: A used roll of photostatic film is guided through a series of bunny brushes and vacuum nozzles to reclaim the film. The brushes pick particles from the film. The vacuum nozzles, connected to a blower, remove the particles from the brush. The reclaimed film is then rewound on a core. The process of reclaiming this web of photostatic film carefully guides the web from the used roll through the brushes to the rewinding spool without creasing the web.
    Type: Grant
    Filed: January 21, 1980
    Date of Patent: April 27, 1982
    Assignee: Ingenuity Incorporated
    Inventors: Felix A. Miles, Dale P. Roush
  • Floating water detector
    Patent number: 4325060
    Abstract: A moisture detector comprises a shell adapted to float with an anode and cathode on the bottom portion thereof. The anode may be of sacrificial metal which is electrolyzed to increase the conductivity of moisture contacting the electrodes. Also, a water soluble electrolyte may be placed either on the electrodes or close thereto. A plug on the shell may provide for a pair of remote electrodes. A piezoelectric transducer system of improved design involves shaping of the chambers in said shell.
    Type: Grant
    Filed: December 17, 1979
    Date of Patent: April 13, 1982
    Inventors: Jack L. Purtell, Rufus J. Purtell