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| Number | Title | Issue Date |
| 7032675 | Thermally-controlled valves and methods of using the same in a wellbore Methods of operating a downhole tool comprise thermally-controlling the tool by sensing a temperature and controlling the tool in response to the sensed temperature. Thermally-controlled downhole tools comprise a control element responsive to a change in temperature... | 04/25/2006 |
| 6220519 | Sanitary steam trap A thermostatic steam trap for use in sanitary environments has a steam trap body defining a steam trap cavity and consisting of an inlet body portion defining an inlet port in communication with an inlet cavity portion and an outlet body portion defining ... | 04/24/2001 |
| 6148845 | Valve housing with a connecting part and a cap The valve housing can be used for valves and steam traps with a compact automatic control unit. It has a connecting part with two flow ducts and a base on which the open end of a cap rests tightly. Two post-like projections with fastening orifices are pro... | 11/21/2000 |
| 5884654 | Condensate discharge device A condensate discharge device which prevents metal ions from attaching and depositing on the condensate discharge port surface. An inlet, a condensate discharge port, and an outlet are formed in a valve casing, which valve casing includes an upper casing ... | 03/23/1999 |
| 5833135 | Thermally-actuated steam trap A thermally-actuated steam trap comprises a valve casing having an inlet, a valve chest and an outlet. A valve seat member with a discharge passage is disposed between the valve chest and the outlet. A temperature control element with an expansible medium... | 11/10/1998 |
| 5546976 | Condensate trap installations A condensate trap installation comprises a condensate trap 6 and one or more further components such as a strainer 8 and a check valve 10. The condensate trap 6 and the further components 8, 10 are placed in face-to-face engagement at end faces 30 and cla... | 08/20/1996 |
| 5478012 | Thermally-actuated steam trap In a thermally-actuated steam trap, a valve casing is formed therein with an inlet, a valve chest and an outlet, and a valve seat member is disposed between the valve chest and the outlet. Within the valve chest, there is further provided a temperature co... | 12/26/1995 |
| 5405078 | Thermally-actuated steam trap A thermally-actuated steam trap, which performs the opening and closing operations of a valve according to a change in the volume of an expansible medium, comprises at least two diaphragms and a valve member fitted to the lower diaphragm. The lower diaphr... | 04/11/1995 |
| 5316213 | Condensate trap A condensate trap (2) comprises a valve disposed within a casing comprising a peripheral wall (3) and end walls (6,7). Each end wall has an aperture (9,10) for the passage of fluid into and out of the casing, the end walls having mutually parallel flat en... | 05/31/1994 |
| 5275334 | Thermally-actuated steam trap In order to open a valve member during the breakage of a temperature control element and to prevent the couterflow of fluid from an outlet side to an inlet side even when pressure at the outlet side becomes higher than that at the inlet side, there is pro... | 01/04/1994 |
| 5197669 | Thermally-actuated steam trap In order to open a valve member during the breakage of a temperature control element and to prevent the counterflow of fluid from an outlet side to an inlet side even when pressure at the outlet side becomes higher than that at the inlet side, there is pr... | 03/30/1993 |
| 4995553 | Thermally controlled valve There is provided a thermally controlled valve having a valve seat, a closure valve associated therewith, an expansion capsule containing an evaporation medium which actuates the closure valve by a stroke displaceable wall part, and a snap spring biasing ... | 02/26/1991 |
| 4955536 | Thermally controlled valve A thermally controlled valve is provided having a valve seat, a closure valve cooperating with the valve seat, a diaphragm capsule, a plate spring, and an abutment supporting the plate spring along its outer edge. The diaphragm capsule includes a rigid wa... | 09/11/1990 |
| 4781325 | Thermostatic valve with trap repair cartridge A thermostatic valve such as a steam trap, incorporates a cup shaped trap repair cartridge having the lower end of an annular intermediate valve body of cast metal threaded into an upwardly open, internally threaded cup shaped valve casing. The trap repai... | 11/01/1988 |
| 4634048 | Low-profile encapsulated diaphragm valve for the thermal control of condensate water drainage The invention relates to a volatile-liquid-filled, encapsulated diaphragm valve for the thermal control of condensate water drains. The capsule consists of two unhardened turnings which are welded together, the lower capsule part having a threaded stem to... | 01/06/1987 |
| 4616778 | Thermostatic steam trap A thermostatic steam trap is disclosed in which a control chamber contains an insert enclosing a bellows adapted to force a valve member to a closed position in a direction opposite the normal flow of fluid through the trap together with self-centering me... | 10/14/1986 |
| 4560105 | Bellows-actuated thermostatic steam traps In a bellows-actuated thermostatic steam trap (A) having a bellows (41) carrying a valve member (45) of a valve (45/22) for opening and closing the trap, the bellows is disposed between connections (20/21 and 30/31) which are identical to one another so a... | 12/24/1985 |
| 4549691 | Dual mode bellows-actuated thermostatic steam trap A thermostatic steam trap, which operates either as a blast trap or a liquid expansion trap, depending solely on reversal of inlet and outlet function, has a generally cylindrical housing containing an internal cavity. The housing has two parts, the first... | 10/29/1985 |
| 4356964 | Thermic control element A thermic control element has a plate-like wall part and a membrane member which is peripherally coupled therewith which, on its one side, supports a locking element and, on its other side, a counter plate facing the wall part. The locking element, the me... | 11/02/1982 |
| 4248376 | Thermally-controlled valve A valve is provided of the type which includes a valve housing having a valve seat, a thermal control element mounted in the valve housing having a thin, rigid wall portion and a membrane member coupled peripherally with the wall portion, so as to define ... | 02/03/1981 |
| 4244518 | Thermally-controlled valve A valve is disclosed of the type which includes a thermal control element having at least one relatively thin rigid wall portion, a flexible membrane coupled to the periphery of the wall portion so as to define therebetween an expansion chamber in which a... | 01/13/1981 |
| 4226362 | High pressure steam trap A high pressure steam trap is provided of the type which has at least two serially-connected and operated discharge control assemblies which are switched in series in the flow direction of the condensate, each of which includes a thermal control element w... | 10/07/1980 |
| 4023730 | Steam trap A steam trap comprising a housing forming a low pressure chamber and an it opening and an outlet opening and a valve seat formed at the inlet opening. A thermal control device filled with an expansion medium is disposed in the low pressure chamber, and i... | 05/17/1977 |
