Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 4108418 | Fluid operated pinch valve A fluid operated pinch valve comprises a flexible sleeve fixed at its ends within a valve casing that has a laterally facing opening through which the sleeve may be inserted and replaced without removing the valve casing from the flow line. A casing cover... | 08/22/1978 |
| 4103702 | Sound proofed valve for fluid under pressure The invention comprehends a sound proofed valve for fluid under pressure, comprising a movable obturator for progressively uncovering a series of fluid expansion orifices positioned inside an expansion area, a sound proofing means also positioned inside s... | 08/01/1978 |
| 4103701 | Freeze-proof cap for outdoor faucet A thermally insulated freeze-proof cap which can be easily installed with a specially designed face plate on the existing outdoor faucet without dismantling any part of a faucet. The invented cap can prevent freezing of water pipe line or the like and hea... | 08/01/1978 |
| 4079747 | High temperature valve A valve for use with high temperature abrasive fluids includes a valve body having an outer shell of metal, such as low carbon steel, a refractory liner attached to the shell comprising an insulating outer layer of relatively low density castable refracto... | 03/21/1978 |
| 4071043 | Apparatus for protecting a water faucet or the like from freezing temperatures There is disclosed apparatus comprising a pair of bodies of foamed plastic material having inner sides disposable on opposite sides of a water faucet or the like, and means for forcing the bodies toward one another, when so disposed, in order to cause the... | 01/31/1978 |
| 4064903 | Noise enclosure for hydraulic valve A noise attenuating enclosure for a hydraulic valve is provided. The enclosure has separate top, bottom, side and cover members fabricated from sheet metal material and lined with relatively thick sound energy barrier material such as a foam rubber or pol... | 12/27/1977 |
| 4046406 | Fire-safe jacket for fluid piping components Steel pipe, fittings, joints and valves, lined with PTFE resin are rendered fire-safe for in excess of one hour exposure to open flames by jacketing the components with an enclosure formed from fibrous refractory material. The enclosures are configured an... | 09/06/1977 |
| 4044737 | Exhaust gas control valve An improved exhaust gas control valve of the type in which a vacuum actuated, valve-closure member controls the flow of exhaust gas into a gas chamber located between an inlet port and an outlet port, wherein the improvement comprises a corrosion-resistan... | 08/30/1977 |
| 4040440 | Silenced valve construction The invention contemplates sound-absorbent structure so built into the downstream side of a flow-control valve as to absorb noise generated by fluid passage through the valve, without presenting obstruction to the flow controlled by the valve.... | 08/09/1977 |
| 4015626 | Constant flow valve for low flow rates A constant flow valve for low flow rates employs a tire valve assembly which is threadably received within the downstream end portion of an axial passageway formed in an elongated inlet tube. The tube is received within a stem portion of a first part of a... | 04/05/1977 |
| 4015817 | Stop means for valves A stop member adapted to be mounted on the body of a valve has abutment stops to define the open and closed position of the valve and a portion which acts as a retainer to retain the closure member of the valve against vertical movement. The stop member h... | 04/05/1977 |
| 4004776 | Ball valve The specification discloses a ball valve comprising a valve body having a ball receiving cavity with aligned inlet and outlet passages leading thereto. Located in the cavity are two ring-shaped seats and a ball rotatably supported in the seats. The ball h... | 01/25/1977 |
| 3998240 | Injection-molded faucet assembly A low profile faucet assembly of the type having hot and cold water valves and a spout includes an injection-molded body defining inlets for connection to hot and cold water pipes, an outlet for communication to the spout, and means for mounting the valve... | 12/21/1976 |
| 3990675 | Butterfly valve A butterfly valve for pipes having smooth ends comprising a body constituted by a metal casing of generally tubular shape with two dimensional bosses provided with coaxial passages. A layer of elastomer material externally and internally envelops the tota... | 11/09/1976 |
| 3985150 | Ball valve for valving abrasive fluids A valve assembly for valving abrasive fluids. A ball valve member is provided for rotation in a body member, the body member having inlet and outlet bores therein. Tubular inserts of abrasion resistant material - such as boron carbide - are provided in th... | 10/12/1976 |
| 3976124 | Cooling-controlled tank for hydraulic fluid A tank for oil or other hydraulic fluid is improved both for cooling the fluid during normal operation and for heating it up preliminarily at start-up time by an internal curtain spaced a narrow distance from the side walls and providing a cooling channel... | 08/24/1976 |
| 3976094 | Guided slide valve A guided slide valve having wear-prone internals which can be removed through the bonnet opening and which can operate in high pressure, high temperature erosive solid or fluid flow systems is disclosed which includes a body having a flow passage through ... | 08/24/1976 |
| 3974869 | Fluid flow control valve Fluid flow control valves such as plug valves or cocks have the plugs thereof supported and sealed in the valve housing by a rigid but somewhat elastic plastics bearing member which is preloaded and compressed from its free state condition and seeks to re... | 08/17/1976 |
| 3973585 | Jacket construction for fluid flow fittings To aid in maintaining at a desired temperature a fluid flowing through a fitting in a fluid conveying system, a jacket means is provided which has a hollow housing of heat-conductive material which substantially surrounds the body of the fitting and throu... | 08/10/1976 |
| 3964507 | Slide valve with integrated removable internals A slide valve with integrated removable internals which can operate with fully reversing pressures in a high pressure, high temperature, erosive solid or fluid flow system is disclosed which includes a body having a flow passage through it including a lar... | 06/22/1976 |
| 3960167 | Gas cock A gas cock having a valve body having an axial bore within which is housed a plug rotationally mounted therein for opening and closing the gas cock. The valve body has an inlet passageway and an outlet in communication with the bore. An elastic sleeve is ... | 06/01/1976 |
| 3958595 | Corrosion resistant valve construction A valve, such as a butterfly valve having an offset closure vane and a thru shaft for operating the vane in the flow passage of the body, has all exposed and/or potentially vulnerable metal surfaces encapsulated in a corrosion resistant polymeric plastic ... | 05/25/1976 |
| 3957245 | Gate valve structure A gate valve structure for use in mains carrying fluid, such as water mains or the like, the gate valve structure having a non-rising stem-type actuating mechanism. The gate valve structure includes a hollow gate member having a chamber therein open to th... | 05/18/1976 |
| 3948284 | Rising-plug plug valve In a rising-plug plug valve wherein the plug and valve body at the narrow end of the plug define a cavity, a passage is provided between the cavity and the outlet opening of the plug valve. On opening, the valve plug and seat portion adjacent the narrowes... | 04/06/1976 |
| 3937247 | Valve for fluids containing abrasive particles A high pressure, high temperature, seatless cut-off valve particularly suitable for use with solid materials. The construction employs a sleeve valve reciprocable past aligned ports between concentric tubular housing members under conditions wherein the p... | 02/10/1976 |
