Patents Represented by Attorney Melvin R. Stidham
  • Patent number: 4410010
    Abstract: An orifice meter wherein a disc carrier plate has two openings, one being a receptacle for an orifice disc and the other a through flow port. When the carrier is raised for replacement of the disc, the flow port is aligned with the flow passages. Seals around the flow port seal off the flow passages so that pipeline flow may be resumed during the orifice disc replacement.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: October 18, 1983
    Assignee: Grove Valve and Regulator Company
    Inventor: Davis A. Van Scoy
  • Patent number: 4399708
    Abstract: An orifice meter having a working housing with flow tubes and an isolation chamber for servicing the orifice. An annular member in the working housing isolated into one position to align an access opening with the isolation chamber to enable movement of a gate-like orifice carrier into and out of the working housing, and into another position wherein it seals off the isolation chamber.
    Type: Grant
    Filed: December 24, 1981
    Date of Patent: August 23, 1983
    Assignee: Grove Valve and Regulator Company
    Inventor: Davis A. Van Scoy
  • Patent number: 4399931
    Abstract: A dry matter dispensing device comprising a hopper having a paddle pivoted between the front and rear walls, the paddle is oscillated to sweep the contents from the opposite ends of an arcuate, concave tray with each stroke thereof. The dry material slides down a pair of adjustably sloped panels on opposite sides of that paddle so that, as the paddle sweeps material in front of it on each stroke, more is dropping down the sloped panel behind it to pile up on the concave tray. Hence, a measured amount of the dry material is delivered by setting the length and number of paddle strokes. The adjustment of the sloping panels is made to ensure free flow to the concave tray without the material bridging or escaping prematurely from the tray.
    Type: Grant
    Filed: March 24, 1981
    Date of Patent: August 23, 1983
    Inventor: Richard E. Maddalena
  • Patent number: 4394826
    Abstract: An orifice meter with an isolation valve plate pivotally suspended from the bottom of the orifice disc carrier. The valve plate is eccentrically mounted so that it drops to horizontal position when the carrier is raised free of the flow passage sealing surfaces, to seal off an upper chamber into which the disc carrier is raised. When again lowered, the valve plate engages a cam member which cams its back into vertical position nested in a recess along the bottom of the disc carrier.
    Type: Grant
    Filed: December 24, 1981
    Date of Patent: July 26, 1983
    Assignee: Grove Valve and Regulator Company
    Inventor: Davis A. Van Scoy
  • Patent number: 4394003
    Abstract: A valve seal for a cryogenic butterfly valve comprising a reclining U-shaped resilient seal with the annular edge of the longer radially outer leg being gripped in the valve body to form a static seal. Pressure in one direction acts around the outer surface of the seal to pivot it about the static seal against the valve disc. Pressure in the other direction acts between the legs of the seal ring and, because the seal is restrained by the valve body against pivoting away from the valve disc, the pressure separates the legs to bias the radially inner leg inwardly against the valve disc.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: July 19, 1983
    Assignee: The Walworth Company
    Inventor: Ritchie W. Whitaker
  • Patent number: 4387573
    Abstract: A turbocharger for an internal combustion engine having, essentially, a one-piece housing with an intake port on top and an outlet port on the bottom. Both ports are surrounded by standard carburetor flanges so that the carburetor may be removed from the engine and mounted directly on the turbocharger and then the entire assembly mounted on the engine as a unit, with the turbocharger intermediate the carburetor and the engine. A generally horizontal passageway extends from the inlet opening to the axial inlet of a turbine compressor, and the compressed air/fuel mixture is projected radially downward through the discharge port. A bypass port opens through the bottom of the horizontal passageway directly to the discharge port, and a shut-off valve there is held open at low engine loads as the compressor turbine gains velocity, being driven by the exhaust gases.
    Type: Grant
    Filed: December 11, 1980
    Date of Patent: June 14, 1983
    Inventor: Martin G. Parker
  • Patent number: 4387735
    Abstract: A line-removable valve structure wherein a cartridge containing a movable valve closure member and seals is received in a line-support structure including a pair of rigidly interconnected end plates forming line flanges. With the cartridge in place, seat rings threaded in the end plates, are turned to move axially inward to engage and seal against the ends of the cartridge. The seat rings are selectively turned by a worm gear or by hydraulically driven racks meshing with gear teeth around the seat rings.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: June 14, 1983
    Assignee: Grove Valve and Regulator Company
    Inventor: Roger L. Ripert
  • Patent number: 4384372
    Abstract: A relatively wide back support for a police officer or the like, including an outer support panel of relatively stiff leather, which is sewn to a resilient foam material encased in fabric. A pair of leather patches on the inner surface cover the "dimples" in the wearer's back and slots therein form a belt loop so that the brace can be attached directly to the trouser-supporting belt of the wearer. A number of pairs of horizontal slots extend across the outer panel to receive other loops. The loops will accommodate the conventional Sam Brown belt worn by police officers, or they will allow other equipment such as batons, handcuffs and the like is the case of police officers and tools in the case of tradesmen, to be suspended from the wide back brace.
    Type: Grant
    Filed: July 21, 1980
    Date of Patent: May 24, 1983
    Inventor: Michael H. Rector
  • Patent number: 4380936
    Abstract: An orifice meter with a pair of parallel, flat steel body plates. Flow tubes of predetermined sizes are welded in mounting rings to be bolted to the opposing body plates with the inner ends of the tube extending into the body space in alignment with the orifice disc. Wide grooves around the tubes ensure communication of pressure tap ports through the tube with lateral pressure tap ducts through the body plates. Ducts through the upstream body plate from the groove to the body space and through the downstream plate from the body space to the exterior, enable one, by removal of a plug, to flush the bottom of the body space with upstream pressure.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: April 26, 1983
    Assignee: Grove Valve and Regulator Company
    Inventor: Davis A. Van Scoy
  • Patent number: 4379388
    Abstract: A system for generating electricity contained within an ocean raft. The raft has a series of raceways for heavy metal balls, and, as they roll back and forth, they engage levers which reciprocate back-to-back paired pistons in opposite directions. Each pressurizing movement of a piston discharges a jet of fluid to a common pressure tank from which the pressurized fluid drives a turbine.
    Type: Grant
    Filed: March 27, 1981
    Date of Patent: April 12, 1983
    Inventors: Byrl L. Williamson, Betty Williamson
  • Patent number: 4378253
    Abstract: Disclosed is a maceration system of the type generally used in the grinding and juice extraction of sugar cane. The last mill has a roll and feed and discharge bottom rolls with elongated trash plate spanning the space between the bottom rolls. Separate troughs extend below each of the bottom rolls to catch and separate juice therefrom. The top roll has longitudinal flow passageways around it opening into ports in the roll surface and water is introduced through these passgeways to flow into the pulp moving over the trashplate to the discharge roll, and the juice from below the discharge roll is directed to the pulp moving to the feed roll. In the case of multiple mills in tandem, the juice recovered from the feed roll is directed to the top roll passageways of the previous mill and the juice from the discharge roll of that mill is directed to the feed roll thereof.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: March 29, 1983
    Inventor: Jean Bouvet
  • Patent number: 4370893
    Abstract: An orifice meter comprising a gate valve type of body with an oval body band clamped between a pair of parallel plates. A gate-like carrier slides between the plates and carries an orifice disc with seal ring surrounding it. The seal rings seal around the flow passage and the orifice disc is large enough to be held place by engagement with the adjacent wall plate. In a more remote position, the seal rings may seal around an access opening, which is larger than the orifice disc so that by removing a closure plate, the orifice disc can be rapidly replaced.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: February 1, 1983
    Assignee: Grove Valve and Regulator Company
    Inventor: Marvin G. Combes
  • Patent number: 4364410
    Abstract: For use in a fluid system, which includes a control valve or the like having one port to which the higher of two pressures is delivered and another port from which fluid flows to the lower of two pressures, a four-way shuttle valve with high and low pressure ducts. Pressure level passages connected from the two pressure zones, are each connected by lateral transfer passages to both the high and low pressure ducts. One-way check valves in each of the four lateral passages enables flow only to the high pressure port and from the low pressure port. In the event of pressure reversal, the check valves will shift so that flow is always from the high pressure line to the high pressure duct of the shuttle valve.
    Type: Grant
    Filed: August 21, 1980
    Date of Patent: December 21, 1982
    Assignee: Grove Valve and Regulator Company
    Inventor: Peter C. M. Chow
  • Patent number: 4350152
    Abstract: A massage board having a planar under surface to be supported on a floor or other flat surface and a convex upper surface, the board being of sufficient width and length to support the upper torso of a human adult while lying supine on the flat surface. While so supported on his back, the person may roll and twist over the convex surface to press against and massage sore muscles.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: September 21, 1982
    Inventor: Joseph Strakowski
  • Patent number: 4350900
    Abstract: A rotary machine to be driven by a flow stream, such as wind or a water stream, including a housing with a semi-cylindrical back wall and horizontal top and bottom walls. A plurality of intake ducts open across the front of the housing to direct flow against a plurality of vertical vanes carried on and around a cylindrical rotor within the housing. The ducts on one side of the front-to-back centerline project air streams directly in, in the direction of rotation, while those on the other side of the centerline reverse the stream so that they will also impinge upon the vanes in the same rotational direction. The vanes are configurated as airfoils so that, in addition to the reaction to the flow impingement, there will be a lift vector in the direction of rotation. In one embodiment, the airfoil vanes are disposed in rows of two or more from outside to inside, closely spaced to form venturi slots between them.
    Type: Grant
    Filed: November 10, 1980
    Date of Patent: September 21, 1982
    Inventor: Harold E. Baughman
  • Patent number: 4345580
    Abstract: An attachment for a fireplace flue damper, which has an operating arm of flat bar stock steel. A steel channel with serrated edges is placed at any selected angle across the arm and tightened down with a bolt to grip it. A hand grip is placed over the outer end of the channel and disposed at any angle, usually tilted upward to bring it near the top of the fireplace opening when the damper is opened. It, too, is tightened down to grip by friction.
    Type: Grant
    Filed: November 10, 1980
    Date of Patent: August 24, 1982
    Inventor: Gerald W. Speicher
  • Patent number: 4345738
    Abstract: A fire-safe seal for a valve having a metallic seat ring with a resilient seal ring in a leading face thereof to seal against a valve closure member. A thin, metallic flexible diaphragm is clamped around its outer edges to the body and around its inner edge to the seat ring. An annular sealing ridge, which is concentric to and smaller than the resilient seal, is provided around the face of the seat ring to provide a metal-to-metal seal in the event of destruction of the resilient seal.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: August 24, 1982
    Assignee: Grove Valve and Regulator Company
    Inventor: Roger L. Ripert
  • Patent number: 4344542
    Abstract: A coupling device for railway motor cars includes a pole or tongue on the motor car with a cam member pivoted on the distal end thereof. A coupling box with converging side walls is secured to the end of the trailing car and has a coupling pin extending from top to bottom. When the pivoted cam enters the box it is cammed by first, a sidewall, and then the back wall to pivot and hook around the coupling pin. During the course of this movement, a spring-biased locking pin rides on the flat, top surface of the cam to drop behind it when the coupling is complete, thus preventing reverse pivotal movement. A chain, is secured from the locking pin to an arm extending radially from a long shaft extending laterally to the side of motor car and terminating in an operating arm which, when raised, lifts the locking pin to release the pivoted cam for uncoupling.
    Type: Grant
    Filed: July 14, 1980
    Date of Patent: August 17, 1982
    Inventor: Pete L. Knight
  • Patent number: 4344263
    Abstract: A wood log of substantial thickness and having flat top and bottom surfaces interrupted by complementary tongues and grooves along the length thereof. One or more slots open from at least one of the surfaces with the total slot depth extending over all but a small portion of the top to bottom thickness of the log. The slots are filled with an insulating material.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: August 17, 1982
    Inventor: Johann H. Farmont
  • Patent number: 4344635
    Abstract: A short haul tow bar for a boat which is supported at one end by a pair of wheels. The tow bar is of circular tubular configuration at one end with a transverse sleeve welded across it, so that it may extend horizontally from a vehicle bumper with limited pivotal movement in a vertical plane. The bar is then curved upwardly and it is flattened at the other end to form a rectangular receptacle. A coupling bar carries a cork screw type hook which may be turned into the eye generally provided at the bow of a boat and then inserted into the receptacle to support the boat for pushing it into the water.
    Type: Grant
    Filed: November 10, 1980
    Date of Patent: August 17, 1982
    Inventor: Roy E. Welton