Source: http://www.google.com/patents/US4164959?dq=5920316
Timestamp: 2014-03-14 07:37:17
Document Index: 158040268

Matched Legal Cases: ['art 10', 'art 12', 'art 10', 'art 10', 'art 12', 'art 10', 'art 10', 'art 10', 'art 10', 'art 10', 'art 10', 'art 10', 'art 10']

Patent US4164959 - Metering valve - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsAn axial flow metering valve includes a valve body having an inlet, an outlet, a valve chamber therebetween and a passage for fluid between the inlet and the valve chamber. A valve member is movable in the valve chamber and includes a number of guide pins which extend axially through guide slots and...http://www.google.com/patents/US4164959?utm_source=gb-gplus-sharePatent US4164959 - Metering valveAdvanced Patent SearchPublication numberUS4164959 APublication typeGrantApplication numberUS 05/787,906Publication dateAug 21, 1979Filing dateApr 15, 1977Priority dateApr 15, 1977Also published asCA1079254A1, DE2816139A1Publication number05787906, 787906, US 4164959 A, US 4164959A, US-A-4164959, US4164959 A, US4164959AInventorsPeter Reed executor by, Paul D. Wurzburger, deceasedOriginal AssigneeThe Salk Institute For Biological StudiesExport CitationBiBTeX, EndNote, RefManPatent Citations (3), Referenced by (7), Classifications (23) External Links: USPTO, USPTO Assignment, EspacenetMetering valveUS 4164959 AAbstract An axial flow metering valve includes a valve body having an inlet, an outlet, a valve chamber therebetween and a passage for fluid between the inlet and the valve chamber. A valve member is movable in the valve chamber and includes a number of guide pins which extend axially through guide slots and into grooves in the valve body. The guide pins are threadedly engaged with a rotatable actuating member which encircles them. Rotation of the actuating member moves the valve member toward and away from the valve seat to regulate fluid flow. The valve member may carry a check valve member which checks reverse flow or may carry an inner bypass valve member which permits full unregulated reverse flow.
What is claimed is: 1. An axial flow metering valve comprising a valve body having an inlet, an outlet and a valve chamber between said inlet and outlet, said valve body including first and second body parts, said first body part having a passage for fluid between said inlet and said valve chamber and at least two axially extending guide slots spaced radially from said fluid passage, a valve seat in said valve chamber, said valve seat being formed in said second body part, a valve member in said valve chamber movable toward and away from said valve seat, said valve member having a body portion with at least two guide pins extending axially from said body portion through said guide slots, the number of said guide pins corresponding to the number of said guide slots, each guide pin having a continuing segment of an encompassing thread, and an actuating member surrounding and threadedly engaging said guide pins, whereby said actuating member while being axially restrained is rotatable to move said valve member toward and away from said valve seat.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings and initially to FIGS. 1 to 6, a basic form of valve embodying the present invention includes a valve body B having a rear body part 10 and a front body part 12. The rear body part 10 includes a forward externally threaded portion 14 of larger diameter and a central portion 15. The forward portion 14 of rear body part 10 defines with front valve body part 12 a valve chamber 16. A central fluid passage 17 extends through the rear body part 10 between the valve chamber 16 and a valve inlet 19. The fluid passage 17 is flared where it opens into the valve chamber as shown at 20. A number of circumferentially spaced guide slots 25, 4 such guide slots being illustrated, extend through the forward portion 14 of rear body part 10 and into the central portion 15. The periphery of central portion 15 is provided with circumferentially spaced grooves 35 which are continuous with guide slots 25. Narrow annular openings 45 are provided in the walls of rear body part 10 surrounding each of the guide slots 25 with an O-ring seal 47 seated in each of the openings.
The guide pins 87 extend rearwardly from the body portion 82 of the valve member through the guide slots 25 in rear valve body part 10 and into the grooves 35. Each guide pin 87 is partially threaded as shown at 99 and engages corresponding threads of a valve actuator 102 which encircles the guide pins and the rear valve body part 10. Actuator 102 may be rotated by means of a movable handle 105 to cause the guide pins 87 and valve member 80 to move forwardly or rearwardly. The handle 105 may be pivoted to swing 90 and also to minimize the danger of its being accidentally moved out of its desired position. Actuator 102 is rotatable between a needle bearing assembly 108 which abuts the front portion 14 of rear body part 10 and a second needle bearing assembly 110. The actuator 102 and the bearing assemblies are retained in position by a thrust ring 112 which is threaded onto rear body part 10. The thrust ring is held in position by a jam ring 115 which is threaded onto the end of body part 10 behind the thrust ring. O-ring seals 119 and 120 are provided adjacent the respective needle bearing assemblies 108 and 110 for frictional drag and for contamination barriers.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a plan view of a metering valve embodying the present invention.
BACKGROUND OF THE INVENTION This invention relates to metering valves and more particularly to an axial flow metering valve of improved design and performance.
SUMMARY OF THE INVENTION A general object of this invention is to provide a metering valve which overcomes the difficulties discussed above encountered with present metering valves.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS650295 *Oct 12, 1899May 22, 1900Zepherin BenoitCut-off device for hydrants.US2999512 *Oct 31, 1960Sep 12, 1961Eugene V BarkowFlow control valveUS3052445 *Dec 14, 1959Sep 4, 1962G & H Products CorpPlug for plug valve* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS4550865 *Dec 24, 1982Nov 5, 1985Kanpe Katei Toryoo Kabushiki KaishaObliquely-handling nozzle for aerosolUS5664759 *Feb 21, 1996Sep 9, 1997Aeroquip CorporationValved coupling for ultra high purity gas distribution systemsUS5810031 *Feb 21, 1996Sep 22, 1998Aeroquip CorporationUltra high purity gas distribution component with integral valved coupling and methods for its useUS5863023 *Sep 4, 1997Jan 26, 1999Aeroquip CorporationValved coupling for ultra high purtiy gas distribution systemUS5924447 *Jun 26, 1998Jul 20, 1999Aeroquip CorporationUltra high purity gas distribution component with integral valved coupling and methods for its useUS6035609 *Jun 26, 1998Mar 14, 2000Aeroquip CorporationUltra high purity gas distribution component with integral valved coupling and methods for its useDE3136895A1 *Sep 17, 1981Mar 31, 1983Philips PatentverwaltungApparatus for evaporating starting materials for the reactive separation from the gas phase* Cited by examinerClassifications U.S. Classification137/553, 137/614.21, 137/599.5, 137/599.18, 251/340, 137/601.21, 137/614.18International ClassificationF16K1/38, F16K37/00, F16K31/54, F16K1/00, F16K39/02, F16K27/02Cooperative ClassificationF16K39/02, F16K1/385, F16K27/02, F16K31/54, F16K37/0016European ClassificationF16K27/02, F16K37/00B2, F16K31/54, F16K1/38B, F16K39/02RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google