| Patent Number |
Title Of Patent |
Date Issued |
| D245405 |
Vehicle horn |
August 16, 1977 |
|
| 4645393 |
Retainer for mechanical fastener member |
February 24, 1987 |
| A nut retainer for use with a structural member having a nut entrance channel defined between a pair of opposed shoulders or flanges of some predetermined thickness and a nut receiving channel disposed beneath the shoulders. The nut retainer has a generally frusto-conical body constr |
| 4612746 |
Trench duct and cover assembly |
September 23, 1986 |
| A subfloor electrical trench duct includes an elongated U-shaped body supported by adjustable support members and has an access cover. The cover is supported by one leg of each of a pair of identical, oppositely disposed L-shaped channels extending axially of the body. A first leg of |
| 4609158 |
Composite grinding mill liner |
September 2, 1986 |
| A liner assembly for the interior shell of a grinding mill includes a holder segment having first and second ends and a first surface adapted for mounting engagement with the inner surface of the shell. A second surface of the holder segment faces into the shell and is provided with a |
| 4578031 |
Dimensionally stable movable furnace hearth |
March 25, 1986 |
| An upper furnace portion (A) includes side walls (12, 14) extending along its lower edge. A dimensionally stable furnace hearth (B) is movably mounted adjacent the furnace lower edge and is displaced a small distance from the side walls, such that the hearth is movable without engaging t |
| 4548052 |
Apparatus for cooling a strip prior to a minispangle operation |
October 22, 1985 |
| A steel strip (10) is conveyed through a galvanizing bath (20) of molten zinc, a zinc coating weight control device (12), and a minispangle box assembly (16). The steel strip emerges from the zinc coating weight control device (12) with a non-uniform temperature distribution across its |
| 4547150 |
Control system for oxygen enriched air burner |
October 15, 1985 |
| A combustion controller (C) controls the relative rates at which a combustion component source (B) supplies fuel, air, and oxygen to nozzles (A). A fuel source (30) supplies fuel to the burners at a rate (50 in FIG. 2) which is appropriate to produce a desired amount of heat. A blower (3 |
| 4542947 |
Locking assembly for fluorescent lamps |
September 24, 1985 |
| A securing assembly for an axially rotatable body or workpiece such as a fluorescent lamp provided with a pair of pins which extend axially outward from at least one end thereof and into a socket in a lampholder. The securing assembly includes a generally C-shaped resilient body having a |
| 4503293 |
Interlocking plug and receptacle mechanism with actuating means |
March 5, 1985 |
| An interlocking plug and receptacle mechanism which involves actuating means for operating an electrical device which is environmentally isolated from the atmosphere in an enclosure. The electrical device, specifically a circuit breaker, includes a toggle switch lever which is positionab |
| 4499668 |
Automatic minimum differential pressure control for dryer cylinders |
February 19, 1985 |
| A supply of steam is fed to a drying cylinder (10) from a steam line (20) through a steam pressure control valve (22). Condensate and steam are removed from the drying cylinder to a separator (32). The pressure of the removed steam is controlled by a steam pressure control valve (36) and |
| 4493040 |
Apparatus and method of phase control for resistance welding and other resistive-inductive loads |
January 8, 1985 |
| A computer-controlled welding apparatus includes a phase-controlled resistance welding circuit (A) for selectively conducting pulses of a welding current to a workpiece (B) and a control circuit (C) for controlling the conduction of the welding current. The control circuit includes a |
| 4486133 |
Retainer for mechanical fastener member |
December 4, 1984 |
| A nut retainer for use with a structural member having a nut entrance channel defined between a pair of opposed shoulders or flanges of some predetermined thickness and a nut receiving channel disposed beneath the shoulders. The nut retainer has a generally frusto-conical body constr |
| 4470649 |
Low profile integrated circuit electrical socket assembly |
September 11, 1984 |
| The low profile integrated circuit electrical socket assembly includes a drawn metallic socket (A) into which a leaf spring insert (B) is press fit. The socket includes a hollow upper body portion (10), a hollow lower body portion (12), a transition portion (14) interconnecting the upper |
| 4452153 |
Rotary hearth pyrolyzer with tapered spreader roll |
June 5, 1984 |
| A rotary hearth pyrolyzer is described as having a conically tapered roll for uniformly spreading waste material that is charged onto the hearth for pyrolyzation. The taper of the spreader roll is such that the linear speed at any point measured longitudinally of the roll corresponds to |
| 4445618 |
Spring biased rotary railway car coupler carrier |
May 1, 1984 |
| A rotary railroad car coupler assembly is described as having a unique carrier which is designed for limited angling or tilting in the vertically elongated chamber of the striker, as the coupler rotates. The projecting lugs of the carrier which interlockingly engage the stops in the cham |
| 4440213 |
Recuperator with floating interior housing |
April 3, 1984 |
| A metal recuperator is described as having an exterior casing with a replaceable inner housing which forms with the casing a pair of separated fluid passageways through which two fluids, at different temperatures, are circulated into heat exchanging relationship. Special seals are provid |
| 4439212 |
Process and device for gaseous atmosphere separation in plants for heat treatment under atomosph |
March 27, 1984 |
| A process is described for the separation of gaseous atmospheres in heat treatment plants, under atmosphere, especially in dip metal coating plants; this process being characterized by the fact that the gaseous atmosphere separation is performed near the coating metal bath and the he |
| 4437612 |
Flotation nozzle |
March 20, 1984 |
| A flotation nozzle is described as having an enclosed chamber with unique fluid emitting orifices which are angularly oriented to produce a desired, directional flow of fluid. One such orifice is a dimple-shaped cavity which extends inwardly of the chamber and has a circular opening in t |
| 4433834 |
Composite cushion pad |
February 28, 1984 |
| A composite cushion pad for railroad cars or off-the-road vehicles is disclosed. The composite cushion pad can be circular or rectangular, depending on its use. The circular composite cushion pad is composed of a rigid circular plate having a centrally disposed opening which is surro |
| 4429938 |
Locking device for interfitting members |
February 7, 1984 |
| A locking device for interfitting connector members, particularly an electrical plug and receptacle/connector, for automatically locking the members in an axially interconnected relationship. The members include interfitting cylindrical male and female portions with the female portion |
| 4429201 |
Electrical switch having a reciprocating wiping actuator |
January 31, 1984 |
| A switch including a housing in which a pair of electrical contacts are positioned for movement between open and closed positions. An actuator movably mounted in the housing moves between contacts open and contacts closed positions. The actuator includes a wiper wall movable between and |
| 4428489 |
Rotary railroad car F coupler |
January 31, 1984 |
| A rotary railroad car F coupler assembly which employs a rotary connector between the yoke and car coupler, is described as having a yoke with a larger diameter opening in which a bigger rotary connector is mounted. The rotary connector, in turn, is designed to receive an AAR standard F |
| 4427220 |
Flexible joint for conduit |
January 24, 1984 |
| A flexible joint for conduit includes inner and outer conduit parts having a common longitudinal axis. The inner conduit part includes a spherically curved end portion received in the outer conduit part and having inner and outer surfaces. Inner and outer ring assemblies carried by the o |
| 4422016 |
Constant energy transfer rate strobe source |
December 20, 1983 |
| A strobe light power source transfers a constant amount of energy to a capacitor bank for each flash of a strobe lamp by maintaining a constant energy transfer rate between a power source and the capacitor bank and allowing the capacitor bank to charge for a set period of time. The e |
| 4420088 |
Rotary railroad car coupler assembly with a horizontal key/slot arrangement |
December 13, 1983 |
| A rotary F-type railroad car coupler is described as having a rotary connector which is mounted for rotation within a cylindrical opening in the front end of the yoke. The rotary connector has an opening which extends longitudinally through the connector for receiving the butt end of |
| 4419560 |
Welding control with automatic percent heat adjustment |
December 6, 1983 |
| This welding control method and apparatus automatically adjusts the percent heat of a welding machine in response to the duration of the preceding welds. The duration of each weld is measured by counting the line cycles. The line cycle count is compared with a percent heat increase condi |
| 4414440 |
Waterproof electrical switch with safety interlock |
November 8, 1983 |
| A water-tight housing (80) has a circuit breaker (71) mounted in its interior. A plug receiving structure (70) selectively receives an electrical plug (75). A locking pin (12) is slidably mounted through the housing to engage the electrical plug and undergo sliding movement upon rece |
| 4408816 |
Terminator connector for shielded cables |
October 11, 1983 |
| A terminator connector for shielded cables includes a cylindrical base portion clampable against a cable shield, and a plurality of circumferentially-spaced spring fingers extending outwardly from one edge of the base portion for engaging a metal housing to ground the shield. |
| 4403267 |
Electrically heated vacuum furnace with a fault detection system |
September 6, 1983 |
| An electrically heated vacuum furnace is described as having a fault detection system which has the ability to sense among other things, carbon arc buildup, a load touching a heating element, short circuits from broken heating elements, and short circuits in any heating element connectio |
| 4399984 |
Automatic installation for the heat treatment of workpieces in fluidized beds |
August 23, 1983 |
| Workpieces are heat treated in a fluidized bed contained within a vessel having a central well surrounded by helical ramps along which the workpieces move into and out of the bed. A perforated platform connects the ramp and movement of the workpieces along the discharge ramp is achie |
| 4398700 |
Annealing furnace with an improved cooling section |
August 16, 1983 |
| The cooling section of an annealing furnace is described as having the capabilities of maintaining, increasing, or decreasing the temperature of a strip of metal as it passes through the section. Moreover, special means are provided for forming around the cooling device, used in the cool |
| 4397600 |
Device for feeding material to a furnace |
August 9, 1983 |
| A device is described for feeding bars and tubes into a treatment furnace. The device comprises a rotary drum positioned in front of a long horizontal opening provided in the sidewall of the furnace for receiving a bar and introducing it into the furnace through the opening. The device i |
| 4394982 |
Liner plate for grinding mills |
July 26, 1983 |
| A liner plate for grinding mills includes a short integral lifter bar section having a bolt receiving hole therethrough for securing the plate to the shell of a grinding mill. A replaceable lifter bar section fits onto the liner plate in alignment with the integral lifter bar section. |
| 4384546 |
Device for cleaning a filter used in conjunction with a galvanizing process |
May 24, 1983 |
| A device is described for filtering zinc powder from an airstream which is exhausted from a galvanizing process. The device comprises an enclosed chamber to which the airstream is circulated for removal of zinc powder. The chamber has a horizontally disposed bottom surface in which there |
| 4378639 |
Method and apparatus for uniformly drying a continuous web of cellulosic fibers |
April 5, 1983 |
| A method and apparatus used in the uniform drying of a continuous web, such as a sheet of paper or paperboard. A newly formed web of paper of wet cellulosic fibers and the necessary additives is initially directed through a press section where excessive water is squeezed from the web to |
| 4357880 |
Bolster for a railroad car truck |
November 9, 1982 |
| A bolster for a railroad car is described as having larger than normal wedge shoes which necessitate enlarged pockets that reduce the strength of the bolster casting, thereby making it more susceptible to fracturing, unless the high force concentrations in the areas of the pockets are |
| 4355683 |
System of moisture and temperature conditioning air using a solar pond |
October 26, 1982 |
| An air conditioning system and/or a heating system is described in combination with a solar pond, especially a pond which is of the gradient type, wherein it is important to maintain a concentration of salt which increases with the depth of the pond. The pond is regenerated, that is, |
| 4355654 |
Fluid flow control device for monitoring the fluid flow in a conduit for leakage of fluid |
October 26, 1982 |
| A device for monitoring the flow of fluid in a pair of conduits and blocking the flow of fluid in a conduit when leakage of fluid is sensed therein. The device is provided with, a pair of inlet and outlet passageways in which fluid flows to and from the conduits, a pair of solenoid o |
| 4354827 |
Process and device for improving heat exchange in furnaces heated by radiant heaters |
October 19, 1982 |
| A furnace is described as having a heat treatment chamber which is provided with banks of radiant heaters to heat a load that is placed within the chamber for heat treatment. The radiant heating of the load is improved by the addition of convection heating which is carried out by a plura |
| 4350256 |
Rotary coupler with a specially configured pinhole |
September 21, 1982 |
| A rotary F coupler is described as having an improved pinhole design, wherein the backwall of the pinhole has a generally cylindrical, rectangularly shaped pin bearing surface which projects into the pinhole about three-quarters of an inch, compared to the conventional projection or |
| 4336131 |
Gasification furnace with discharge hopper |
June 22, 1982 |
| A continuous gasification furnace and method of operation. The charge is fed into the furnace chamber between two rolls at least one of which is driven. The furnace chamber can be sealed from the ambient atmosphere. The bed of the furnace contains three zones from top to bottom, these zo |
| 4331198 |
Rotary heat exchanger |
May 25, 1982 |
| The present invention is a rotary heat exchanger core for use with a rotary heat exchanger. The core comprises a plurality of discs having passages for axial fluid flow. The discs are axially aligned and connected with a space between adjacent discs. There is a means to prevent circumfer |
| 4328900 |
Rotary coupler with improved pin bearing |
May 11, 1982 |
| A rotary F coupler is disclosed as having a rotary connector and pivot pin arrangement which provides increased bearing contact between these two components. This is accomplished by the provision in the rotary connector of a dual diameter pinhole opening which is designed to receive a ma |
| 4328532 |
Aircraft instrument lighting fixture |
May 4, 1982 |
| An aircraft instrument lighting fixture is described as having a bezel top or covering for the instrument. The bezel top has a cylindrical opening through which the face or dial of the instrument can be viewed, and an inner cylindrical wall which is adjacent the opening and around which |
| 4326342 |
Multi-zone oven with cool air modulation |
April 27, 1982 |
| An oven is disclosed as having a plurality of chambers which are sealed from the ambient atmosphere, and to which gas, heated to a high temperature outside the chambers, is circulated to each of the chambers for admixture with gas which is cool compared to the high temperature gas, t |
| 4321961 |
Thermal energy exchanging device |
March 30, 1982 |
| A thermal energy exchanging device is described as having a stationary, hollow cylindrical gas distributing member around which a closed, hollow torus-shaped member rotates. The stationary member is longitudinally and transversely divided into four compartments. The hollow enclosure of t |
| 4321877 |
Gasification furnace |
March 30, 1982 |
| A continuous gasification furnace and method of operation. The charge is fed into the furnace chamber between two rolls at least one of which is driven. The furnace chamber can be sealed from the ambient atmosphere. The bed of the furnace contains three zones from top to bottom, these zo |
| 4319164 |
Power factor compensating electroluminescent lamp DC/AC inverter |
March 9, 1982 |
| Described is a circuit to invert DC to AC for the operation of electroluminescent lamps. A primary winding of a transformer is in series with a power source and the input or output of the switching device. The output of the switching device is connected back to the power source. The |
| 4318534 |
Plate quench |
March 9, 1982 |
| A plate quenching apparatus is described as having a horizontally elongated chamber in which a plurality of rows of metal, tire-like rollers are used to support an element, such as a number number of metal plates, as the element moves along a horizontal pathway between opposing rows of n |
| 4316717 |
Method of controlling strip temperatures |
February 23, 1982 |
| A method of controlling strip temperatures of two joined metal strips of dissimilar gauges but requiring essentially the same heat treatment temperatures, is described. The normal processing temperature is higher than the temperature to which it is desired to heat the webs. The higher |
