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US3620449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally controlled condensate trap
Assignee: Individual
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Filing: 1970-02-26
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Granted: 1971-11-16
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Expires: 1990-02-26
Abstract
Abstract A thermally controlled condensate trap is shown. The trap includes a housing having cover means secured thereto and inlet and outlet openings therewithin. A sludge strainer is disposed within the housing and bears cutoff valve means which are controlled by temperature sensing means.
Inventors
- 👤 Gerhard Hohn
- 👤 Josef Lingnau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:00
CPC Classifications
F; F16; F16T; F16T1/00; F16T1/02; F16T1/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
158 words
A thermally controlled condensate trap, comprising a housing having a lower housing section with an entry port, an outlet port and a valve seat intermediate said ports, and a cover cap mounted upon said lower housing section, a temperature sensor located within said housing and consisting of a bellows filled with an evaporatable fluid, closure means connected with said temperature sensor, a sludge strainer enclosing said temperature sensor, said closure means and said valve seat, said temperature sensor being attached to that end of said sludge strainer which is away from said valve seat, said lower housing section having a recess concentrically enclosing said valve seat, said sludge strainer having an opposite end adjacent to said valve seat and mounted in said recess, an annular collar enclosing said opposite end of the sludge strainer, and a plate spring mounted upon said collar, said cover cap having an inner supporting surface engaging the outer edge of said plate spring.
Claim 2
Dependent Claim
158 words
A thermally controlled condensate trap, comprising a housing having a lower housing section with an entry port, an outlet port and a valve seat intermediate said ports, and a cover cap mounted upon said lower housing section, a temperature sensor located within said housing and consisting of a bellows filled with an evaporatable fluid, closure means connected with said temperature sensor, a sludge strainer enclosing said temperature sensor, said closure means and said valve seat, said temperature sensor being attached to that end of said sludge strainer which is away from said valve seat, said lower housing section having a recess concentrically enclosing said valve seat, said sludge strainer having an opposite end adjacent to said valve seat and mounted in said recess, an annular collar enclosing said opposite end of the sludge strainer, and a plate spring mounted upon said collar, said cover cap having an inner supporting surface engaging the outer edge of said plate spring.
Claim 3
Dependent Claim
31 words
A condensate trap according to claim 1, wherein said temperature sensor is axially adjustably connected to said sludge strainer to adjust the distance between said closure means and said valve seat.
Claim 4
Dependent Claim
23 words
A condensate trap according to claim 2, wherein said temperature sensor has a collar attached to the inner wall of the sludge strainer.
Claim 5
Dependent Claim
20 words
A condensate trap according to claim 3, wherein said plate spring has openings for the passage of the flowing medium.
Claim 6
Dependent Claim
16 words
A condensate trap according to claim 4, wherein said annular collar consists of a clamping ring.
Claim 7
Dependent Claim
28 words
A condensate trap according to claim 5, wherein said recess of the lower housing portion and said opposite end of the sludge strainer have corresponding conical supporting surfaces.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |