Famous Patents
In 1879, Auguste Bartholdi received design patent number 11,023 titled "Design for a Statue". It was for the Statue of Liberty.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 4645393 | Retainer for mechanical fastener member 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 general... | 02/24/1987 |
| 4612746 | Trench duct and cover assembly 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 axiall... | 09/23/1986 |
| 4609158 | Composite grinding mill liner 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 th... | 09/02/1986 |
| 4578031 | Dimensionally stable movable furnace hearth 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 hea... | 03/25/1986 |
| 4548052 | Apparatus for cooling a strip prior to a minispangle operation 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 temp... | 10/22/1985 |
| 4547150 | Control system for oxygen enriched air burner 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 de... | 10/15/1985 |
| 4542947 | Locking assembly for fluorescent lamps 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... | 09/24/1985 |
| 4527506 | Apparatus for cooling a strip prior to a minispangle operation 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 temp... | 07/09/1985 |
| 4503293 | Interlocking plug and receptacle mechanism with actuating means 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... | 03/05/1985 |
| 4499668 | Automatic minimum differential pressure control for dryer cylinders 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 stea... | 02/19/1985 |
| 4493040 | Apparatus and method of phase control for resistance welding and other resistive-inductive loads 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. T... | 01/08/1985 |
| 4486133 | Retainer for mechanical fastener member 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 general... | 12/04/1984 |
| 4470649 | Low profile integrated circuit electrical socket assembly 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 porti... | 09/11/1984 |
| 4452153 | Rotary hearth pyrolyzer with tapered spreader roll 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 longitudi... | 06/05/1984 |
| 4445618 | Spring biased rotary railway car coupler carrier 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 interlocki... | 05/01/1984 |
| 4440213 | Recuperator with floating interior housing 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 relat... | 04/03/1984 |
| 4439212 | Process and device for gaseous atmosphere separation in plants for heat treatment under atomosphere 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 ... | 03/27/1984 |
| 4437612 | Flotation nozzle 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 chambe... | 03/20/1984 |
| 4433834 | Composite cushion pad 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 di... | 02/28/1984 |
| 4429938 | Locking device for interfitting members 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 po... | 02/07/1984 |
| 4429201 | Electrical switch having a reciprocating wiping actuator 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 ... | 01/31/1984 |
| 4428489 | Rotary railroad car F coupler 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 desig... | 01/31/1984 |
| 4427220 | Flexible joint for conduit 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... | 01/24/1984 |
| 4422016 | Constant energy transfer rate strobe source 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 fo... | 12/20/1983 |
| 4420088 | Rotary railroad car coupler assembly with a horizontal key/slot arrangement 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 ... | 12/13/1983 |
| 4419560 | Welding control with automatic percent heat adjustment 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 w... | 12/06/1983 |
| 4414440 | Waterproof electrical switch with safety interlock 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 under... | 11/08/1983 |
| 4408816 | Terminator connector for shielded cables 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 ... | 10/11/1983 |
| 4403267 | Electrically heated vacuum furnace with a fault detection system 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... | 09/06/1983 |
| 4399984 | Automatic installation for the heat treatment of workpieces in fluidized beds 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 alon... | 08/23/1983 |
| 4398700 | Annealing furnace with an improved cooling section 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... | 08/16/1983 |
| 4397600 | Device for feeding material to a furnace 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 ... | 08/09/1983 |
| 4394982 | Liner plate for grinding mills 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 th... | 07/26/1983 |
| 4384546 | Device for cleaning a filter used in conjunction with a galvanizing process 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 dispo... | 05/24/1983 |
| 4378639 | Method and apparatus for uniformly drying a continuous web of cellulosic fibers 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 w... | 04/05/1983 |
| 4357880 | Bolster for a railroad car truck 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 i... | 11/09/1982 |
| 4355654 | Fluid flow control device for monitoring the fluid flow in a conduit for leakage of fluid 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 c... | 10/26/1982 |
| 4355683 | System of moisture and temperature conditioning air using a solar pond 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 ... | 10/26/1982 |
| 4354827 | Process and device for improving heat exchange in furnaces heated by radiant heaters 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 heatin... | 10/19/1982 |
| 4350256 | Rotary coupler with a specially configured pinhole 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 th... | 09/21/1982 |
