|
US3765440A
(en)
*
|
1971-05-05 |
1973-10-16 |
M & J Valve Co |
Valve construction
|
|
US3830465A
(en)
*
|
1971-09-17 |
1974-08-20 |
Cameron Iron Works Inc |
Ball valve
|
|
US3776506A
(en)
*
|
1971-12-15 |
1973-12-04 |
Acf Ind Inc |
Valve structure having fluid pressure actuated sealing members
|
|
US3749357A
(en)
*
|
1972-04-07 |
1973-07-31 |
Acf Ind Inc |
Valve structure having fluid pressure actuated seats
|
|
US3790123A
(en)
*
|
1972-04-17 |
1974-02-05 |
M & J Valve Co |
Valve apparatus and method
|
|
US3856261A
(en)
*
|
1973-08-02 |
1974-12-24 |
Acf Ind Inc |
Pressure relief means for valve body chamber
|
|
CH588652A5
(enExample)
*
|
1974-12-30 |
1977-06-15 |
Selbstfinanzierungs Anstalt |
|
|
CA1064888A
(en)
*
|
1975-09-17 |
1979-10-23 |
Rockwell International Corporation |
Seal assembly for valves
|
|
US4083376A
(en)
*
|
1976-10-14 |
1978-04-11 |
Acf Industries, Incorporated |
Two piece double acting valve seat assembly
|
|
CA1108589A
(en)
*
|
1979-06-01 |
1981-09-08 |
Grove Valve And Regulator Company |
Fire safe seal
|
|
US4337919A
(en)
*
|
1981-06-22 |
1982-07-06 |
Grove Valve And Regulator Company |
Bearing retainers for a rotary valve
|
|
US4522266A
(en)
*
|
1982-03-05 |
1985-06-11 |
Halliburton Company |
Downhole tester valve with resilient seals
|
|
IT8215175U1
(it)
*
|
1982-07-02 |
1984-01-02 |
Tubaro Bruno |
Valvola con otturatore sferico girevole, fatta di materia plastica ed installabile e smontabile con movimento radiale a piacere in due condizioni autoregistrante o registrabile.
|
|
GB8800363D0
(en)
*
|
1988-01-08 |
1988-02-10 |
Flexitallic International Valv |
Ball valves
|
|
DE3806871A1
(de)
*
|
1988-03-03 |
1989-09-14 |
Berchem & Schaberg Gmbh |
Stellkugelhahn mit gehaeuse, stroemungskanal, hahnkugel und stellspindel
|
|
US5088687A
(en)
*
|
1990-09-19 |
1992-02-18 |
Stender Carl H |
Ball valve seat for high temperature service
|
|
EP0587006B1
(en)
*
|
1992-09-09 |
1996-10-16 |
Fmc Corporation |
Re-energizable valve and valve seats
|
|
US5255706A
(en)
*
|
1992-11-20 |
1993-10-26 |
Hycon Corporation |
High-pressure ball valve with internal pressure equalization
|
|
DE4423801C1
(de)
*
|
1994-07-01 |
1995-11-23 |
Borsig Kugelhahn Gmbh |
Vorrichtung zum Abdichten von in Leitungen für die Förderung von Flüssigkeiten oder Gasen angeordneten Absperrorganen
|
|
US6425570B1
(en)
*
|
1999-11-01 |
2002-07-30 |
Kemp Development Corp. |
Ball valve having retractable sealing member
|
|
DE10308793A1
(de)
*
|
2003-02-27 |
2004-09-16 |
Flowserve Flow Control Gmbh |
Kugelhahn
|
|
US9038988B1
(en)
*
|
2010-11-01 |
2015-05-26 |
Akron Brass Company |
Valve having reduced operating force and enhanced throttling capability
|
|
US10197168B1
(en)
*
|
2013-05-31 |
2019-02-05 |
Technetics Group Llc |
Energized spring seal for a floating valve seat
|
|
GB201319224D0
(en)
*
|
2013-10-31 |
2013-12-18 |
Clyde Process Ltd |
Powder isolating valve
|
|
DE102017117167A1
(de)
*
|
2016-11-04 |
2018-05-09 |
Franz Schuck Gmbh |
Kugelhahn für ein Leitungssystem zur Förderung von flüssigen oder gasförmigen Medien
|
|
CN108386540B
(zh)
*
|
2017-02-27 |
2019-10-01 |
周孝银 |
Ro净水器的压力桶
|
|
US10801627B2
(en)
|
2018-12-07 |
2020-10-13 |
Flowserve Management Company |
Valve seats, valve assemblies, and related methods
|
|
US11454327B2
(en)
*
|
2020-08-07 |
2022-09-27 |
Commando Pressure Control, Inc. |
Methods and systems associated with a high pressure valve system
|
|
US11560959B1
(en)
|
2021-10-20 |
2023-01-24 |
Flowserve Management Company |
Trunnion ball valve with controlled ball-seat engagement and disengagement
|
|
CN115929937A
(zh)
*
|
2022-12-28 |
2023-04-07 |
四川凯茨阀门制造有限公司 |
一种铸钢固定球阀结构
|