Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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 |
| 7543720 | Method and apparatus for dispensing small volumes of fluid A method and apparatus for dispensing small volumes of fluid using a pneumatic control valve connected to the intake port of a pump having a chamber of variable volume, connecting the outlet port of the pump to the inlet port of a high speed flow control valve and a... | 06/09/2009 |
| 6863276 | Device for sealing or reducing holes, and connecting holes with a tube end A method and device for sealing or reducing holes or their connection with a tube end or similar fitting is characterized by at least one element with disc shaped surface with a rim smaller than the diameter of the hole to receive the element worth cone or some shap... | 03/08/2005 |
| 6708978 | Process for sealing or reducing holes, and connecting holes with a tube end A method and device for sealing or reducing holes or their connection with a tube end or similar fitting is characterized by at least one element with disc shaped surface with a rim smaller than the diameter of the hole to receive the element worth cone or some shap... | 03/23/2004 |
| 6003557 | Removable sealing plug A removable, expansion sealing plug has an annular seal formed of an elastic material, which seal is expanded by a fruste-conical expansion member when the expansion member is drawn into a retention member, the retention member having an outer surface wit... | 12/21/1999 |
| 5875967 | Method and apparatus for dispensing fluid having volatile solvent A method and apparatus for preventing nozzle clogging in systems for dispensing fluids that comprise a suspension or solution of solid particles in a volatile solvent, such as ink jet printing systems consisting of a control valve and a nozzle, the method... | 03/02/1999 |
| 5819799 | Method and apparatus for rapid fluid dispensing A method and apparatus for high speed fluid dispensing suitable for ink jet printing comprising the dampening of supply pressure fluctuations during and following operation of the control valve by the incorporation of a resiliently compressible element wi... | 10/13/1998 |
| 5676309 | Thermally responsive flow control valve A flow control valve comprises a valve body with a central flow passage containing a poppet releasably engagable with an annular valve seat, the poppet comprising a poppet head engageable with the valve seat and a central bore filled with an expansion mem... | 10/14/1997 |
| 5511585 | Method and device for providing fluid resistance within a flow passageway A method for providing resistance to flow through a flow passageway comprises partially blocking flow through an orifice of reduced diameter by masking the orifice with an element formed of porous material retained immediately adjacent to every side of th... | 04/30/1996 |
| 5505229 | Fluid resistor A fluid resistor for providing resistance to flow through a flow passageway is formed by cutting channels and open cylindrical recesses on the surface of and flow passage bores through a frusta-conical body to be seated in a tapered passageway section wit... | 04/09/1996 |
| 5422780 | Solenoid drive circuit A solenoid drive circuit comprises a timing circuit which activates a voltage control circuit causing a voltage regulator to reduce the voltage output by the driver circuit from a high initial level to a lower holding level sufficient for the solenoid to ... | 06/06/1995 |
| 5284425 | Fluid metering pump A pump for dispensing accurately measured amounts of fluid has a one way check valve in the flow path on the upstream side of a pump chamber and a one way check valve in the flow path at the downstream side of the pump chamber which is of variable interna... | 02/08/1994 |
| 5160226 | Tapered expansion sealing plug An expansion sealing plug having a frusto-conical plug body with peripheral U-shaped grooves, an expansion member comprising either an inner wedge pin or a spherical member, and a tapered coaxial bore for receiving the expansion member. The inner wedge pi... | 11/03/1992 |
| 5121947 | Expansion sealing device A device for providing a sealed intersection between flow passages within a housing comprises an expansion sleeve with a cylindrical outer surface and an axially tapered inner surface for receiving a frusto-conical inner member of greater average diameter... | 06/16/1992 |
| 5085402 | High speed solenoid valve actuator An actuator for an axial flow control valve for operation at high speeds comprises an axially symmetrical plunger armature prebiased against a valve seat in a normally closed position, the plunger having a head portion of increased diameter and a rod port... | 02/04/1992 |
| 5023990 | Device and method for removably retaining components in a smooth bore A device for removably retaining a fluid system component in a smooth bore comprises of body on one end of which the component is mounted and the other end of which comprises a plurality of wings. The interior of the body provides female screw threads int... | 06/18/1991 |
| 5007454 | Fluid control valve with tubular poppet A fluid control valve comprises a slidable, tubular poppet member that is biased toward and sealingly engages dual concentric annular valve seats, which valve seats define an annular opening through which the fluid medium flows when the valve is open. Whe... | 04/16/1991 |
| 4958661 | Check valve A check valve that allows flow in one direction only and is suitable for controlling corrosive, chemically active or sensitive fluids comprises a body formed of a suitably inert substance defining inlet and outlet flow passages with a central chamber betw... | 09/25/1990 |
| 4930553 | Pressure relief valve A pressure relief valve comprises a poppet member that is biased toward and sealingly engages a slidable tubular valve seat having unrestrained axial rotation and a central relief flow passage. When the system pressure reaches a threshold pressure the val... | 06/05/1990 |
| 4867333 | High-pressure pin plug A small bore expansion plug having an inner wedge pin and a plug body with an outer hard surface with small, peripheral V-shaped grooves, a partly hemispherical end wall at its inner end and a tapered coaxial bore for receiving the wedge pin. To provide a... | 09/19/1989 |
| 4804468 | Self-retaining smooth bore insert A self-retaining smooth bore insert employs a helical coil spring for retaining a fluid system component in a smooth bore. The spring comprises two connected helical coils. One coil is coiled around the component. The second coil has an engarged diameter ... | 02/14/1989 |
| 4766924 | Pressure relief valve A relief valve comprises a stationary valve seat and a poppet member which has a valve surface sealingly engageable with the stationary valve seat. The poppet member has an axially extending wall in the vicinity of the valve surface. When the poppet valve... | 08/30/1988 |
| 4753727 | Self-retaining smooth bore insert and method of installing same Three embodiments of a self-retaining fluid system component insert for a smooth bore of predetermined diameter. The insert comprises a helical coil spring with one end thereof connected to the component and having, in its relaxed state an outer diameter ... | 06/28/1988 |
| 4715231 | Maximum pressure indicator A maximum pressure indicator for indicating maximum pressure of a fluid system employs a deformable disc which is bonded to a main plug. The plug has a cavity which is sealed by the disc so that a low pressure is maintained in the cavity. The indicator is... | 12/29/1987 |
| 4706705 | Check valve A miniaturized check valve comprises a generally tubular body including a cylindrical base and a guide sleeve of reduced diameter which axially extends from the base. The body forms a an interior valve seat which surrounds an axially extending fluid passa... | 11/17/1987 |
| 4699715 | Folded filter screen A filter screen for filtering contaminant particles from the fluid system of a hydraulic system comprises a screen which forms an axially extended convoluted nipple-like enclosure which opens through a passage formed in a base and terminates at a nose por... | 10/13/1987 |
| 4492360 | Piezoelectric valve A piezoelectric valve with a cantilevered control arm assembly, comprising a piezoelectric valve operating arm and a contiguous limit arm for limiting the opening deflection of the valve operating arm.... | 01/08/1985 |
| 4491156 | Multiple way pinch valve A miniature electromagnetic valve having a valve mechanism with three spaced parallel rods, a pair of generally semi-circular, resilient conductor tubes extending between the rods and a linear solenoid for selectively shifting the intermediate rod for sel... | 01/01/1985 |
| 4088350 | Plastic tubing connector A connector for Teflon tubing having a male connector with a tapered end providing a male conical sealing surface engageable with a conforming internal conical sealing surface machined in the end of the Teflon tubing. A collet having an annular collar con... | 05/09/1978 |
| 3971542 | Fluid valve and valve system A valve system with an electromagnetically operated pilot valve for pneumatically actuating an operating piston of a primary valve for accurately metering, controlling and/or dispensing fluid with the primary valve. The piston is connected for pivoting a ... | 07/27/1976 |
