Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 7267686 | Implantable prosthetic valve A prosthetic valve for implantation within a fluid conducting lumen within a body includes an elongate generally cylindrical radially collapsible valve body scaffold defining a fluid passageway therethrough for retentive positioning within the lumen. A radially coll... | 09/11/2007 |
| 7147121 | Valve for non-spill cup A valve for use with a cap for a spill resistant cup, the cap including a spout to dispense the liquid and a valve mount extending from the spout to engage with the valve. The valve includes a generally cylindrical valve tower extending from a valve base to sealingl... | 12/12/2006 |
| 6745763 | Vaporizing device for administering sterile medication In existing vaporizers the medication passes through unsterilized passages which preclude heir use to administer sterile medications. The present invention therefore provides a device for dispensing a vaporized spray of sterile medicated liquid. It uses a combinatio... | 06/08/2004 |
| 6719004 | Check valve floor drain A method and apparatus for admitting liquid from a draining surface into a drain conduit and for preventing discharge of waste gas from the drain conduit into the atmosphere in response to a higher pressure in the drain conduit than at the draining surface. The meth... | 04/13/2004 |
| 6585005 | Reinforced tide gate valve A support mechanism for a tide gate valve having an internal cavity, wherein the support mechanism includes a support body receivable in the tide gate valve cavity to help prevent the tide gate valve from collapsing in on itself when subjected to backflow... | 07/01/2003 |
| 6367505 | Check valve with oversized bill A check valve having an upstream inlet part mountable on a discharge end of a conduit, a downstream outlet part adapted to prevent backflow of fluid through the check valve, and a transition part located between the upstream inlet part and the downstream ... | 04/09/2002 |
| 6283137 | Siphon assembly with one way priming valve An improved priming assembly which maybe used for siphoning, includes a siphon tube comprising an inlet end and a discharge end. The discharge end may be connected to a discharge hose that leads to a discharge area. A one-way valve is inserted within the ... | 09/04/2001 |
| 6044859 | Valve apparatus and method A valve includes an inlet and outlet housing, a flexible one-way valve, and a collar. The flexible valve is locked between the housings. The collar is attached to the inlet housing and extends into the flexible valve. As fluid flows through the valve, the... | 04/04/2000 |
| 5830780 | Self-closing valve structure There is provided a self-sealing valve structure. The structure has a first sheet of thermoplastic material and a second sheet of thermoplastic material in face-to-face relationship with each other and are secured together along a portion of the longitudi... | 11/03/1998 |
| 5727593 | Tide gate valve with curvilinear bill An inversion-resistant check valve or tide gate valve has a sleeve bounding a longitudinally extending, flow-through passage for fluids. The sleeve has an intermediate region and an upstream fluid inlet end region mountable on a discharge end of a conduit... | 03/17/1998 |
| 5606995 | Inversion-resistant, readily openable tide gate valve An inversion-resistant check valve or tide gate valve which comprises a sleeve bounding in a longitudinally-extending flow-through passage for fluids. The sleeve has an upstream fluid inlet end region mountable on a discharge end of a conduit which is elo... | 03/04/1997 |
| 5102054 | Airblast fuel injector with tubular metering valve An airblast fuel injector tip is provided for reducing fuel vaporization problems as a result of high fuel temperatures without adversely affecting the airblast operational characteristics of the injector tip. The injector tip includes a fuel receiving ch... | 04/07/1992 |
| 5027823 | Gas flow valve, and automatic sphygmomanometer using same A gas flow valve is provided in a pressure operated part to obtain an air flow velocity conforming to a change in pressure. A main body comprises a resilient member and is tapered from a base end to a distal end thereof to form a wedge-shaped portion at t... | 07/02/1991 |
| 4993452 | Low pressure check valve An exhaust gas aftertreatment system having an air supply system is disclosed and includes an air feeding pump for selectively creating a flow of air through a flow passage which directs the flow of air to a regeneration system. A check valve is provided ... | 02/19/1991 |
| 4938417 | Airblast fuel injector with tubular metering valve An airblast fuel injector tip is provided for reducing fuel vaporization problems as a result of high fuel temperatures without adversely affecting the airblast operational characteristics of the injector tip. The injector tip includes a fuel receiving ch... | 07/03/1990 |
| 4917646 | Self-sealing valve, a self-sealing, non-latex balloon, and a method for producing such a balloon The present invention relates to a self-sealing flexible plastic valve for a non-latex balloon. The valve is made from two flexible plastic sheets, bonded together to define a valve inlet, a valve outlet and a valve passageway. The inlet end of one sheet ... | 04/17/1990 |
| 4765588 | Check valve for use with a syringe A check valve for sealing a fluid supply while permitting selective withdrawal of fluid includes a tubular side wall defining an insertion end and a supply end. A diaphragm is connected to the side wall and extends across the tube interior to close the in... | 08/23/1988 |
| 4612960 | Valve assembly A valve assembly is disclosed for permitting relatively free flow in a first direction and for preventing flow in the path in a second, opposite direction. The assembly includes a resilient flow regulator including a pair of lips arranged to define a norm... | 09/23/1986 |
| 4607663 | Inversion-resistant, readily-openable tide gate valve A tide gate valve has staggered pads embedded therein to provide sufficient strength to resist sagging and inversion, and to provide sufficient flexibility to promote an easy opening of the valve.... | 08/26/1986 |
| 4585031 | Inversion-resistant tide gate valve An inversion-resistant tide gate valve includes a multiple-ply sleeve, and a rigid support member embedded therein to prevent the sleeve from sagging and to impart strength to the sleeve to prevent inversion.... | 04/29/1986 |
| 4566493 | Valve assembly A valve assembly is disclosed for permitting relatively free flow in a flow path in a first direction and for preventing flow in the path in a second, opposite direction. The assembly includes a resilient flow regulator including a pair of lips arranged i... | 01/28/1986 |
| 4535818 | Valve assembly A valve assembly for permitting relatively free flow in a first direction and for preventing flow in a second, opposite direction in a flow path includes a housing having first and second ports and defining a housing interior having an interior surface. A... | 08/20/1985 |
| 4501374 | Hazardous fluid tank with check valve A safety tank for hazardous fluids having a check valve is provided with a filler pipe inserted through a grommet providing a passage for fluids to the interior of the tank. A check valve integral with the grommet prevents reverse flow of the fluid out of... | 02/26/1985 |
| 4473094 | Air inlet An integral air inlet which in use admits filtered gases into a fluid container, especially infusion fluid containers, comprises a needle sealed to a housing which is closed by an air filter, the housing having disposed within it a duck bill valve which p... | 09/25/1984 |
| 4420040 | Ball catcher The present invention comprises a ball catcher having a housing which may contain a stinger, baffles, or both such features therein.... | 12/13/1983 |
| 4386718 | Liquid dispensing means with novel air bleed valve A dispenser of liquid from an inverted rigid screw neck container, the dispenser comprising a base with an upwardly directed socket to receive the container neck in a liquid tight manner, a port to discharge liquid to a threaded nose to be coupled to a ta... | 06/07/1983 |
| 4357958 | Non-return valves A non-return valve comprises a valve body 1 which supports the upstream end of a valve closure means 2 formed by a sleeve of flexible but impermeable material. Closure support means 3 of a skeletal structure are positioned within the valve closure means 2... | 11/09/1982 |
