US4882576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Remote combustible gas sensor
Assignee: Individual
•
Filing: 1988-02-09
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Granted: 1989-11-21
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Expires: 2008-02-09
Abstract
Abstract A combustible gas sensor with a calibration test adaptor. A standard combustible gas sensor attached to a transmitter in transmitter housing has a body portion attached thereto which is adapted to receive and slowly distribute test gas in the vicinity of the combustible gas sensor. A flexible bladder fastened to the main body portion receives the test gas, inflates, and slowly releases the test gas through a sintered stainless steel plug mounted in one end of the flexible bladder.
Inventors
- 👤 Monty Boyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:20
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/0004; G01N33/0006
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
105 words
A remote combustible gas sensor and calibrator therefor, comprising: a. a combustible gas sensor; b. a transmitter housing connected to said combustible gas sensor for transmitting signals indicating a predetermined level of combustible gas; and c. a calibration means attached to said combustible gas sensor, said calibration means comprising: i. a main body portion; ii. means attached to said main body portion for mounting said calibration means on said combustible gas sensor; iii. means on said main body portion for receiving test gas; and iv. test gas distribution means mounted on said main body portion, including a flexible bladder attached to said main body portion.
Claim 2
Dependent Claim
105 words
A remote combustible gas sensor and calibrator therefor, comprising: a. a combustible gas sensor; b. a transmitter housing connected to said combustible gas sensor for transmitting signals indicating a predetermined level of combustible gas; and c. a calibration means attached to said combustible gas sensor, said calibration means comprising: i. a main body portion; ii. means attached to said main body portion for mounting said calibration means on said combustible gas sensor; iii. means on said main body portion for receiving test gas; and iv. test gas distribution means mounted on said main body portion, including a flexible bladder attached to said main body portion.
Claim 3
Dependent Claim
30 words
The remote sensor and calibrator of claim 1, wherein said mounting means comprises: a. a frame attached to said main body portion; and b. a clamp attached to said frame.
Claim 4
Dependent Claim
24 words
The remote sensor and calibrator of claim 1, wherein said means for receiving test gas comprises said main body portion having a bore therethrough.
Claim 5
Dependent Claim
24 words
The remote sensor and calibrator of claim 1, further comprising means mounted in said flexible bladder for slowly releasing test gas from said bladder.
Claim 6
Dependent Claim
16 words
The remote sensor of claim 4, wherein said release means comprises a sintered stainless steel plug.
Claim 7
Dependent Claim
19 words
The remote sensor and calibrator of claim 1, further comprising restricting means for limiting the inflation of said bladder.
Claim 8
Dependent Claim
25 words
The remote sensor and calibrator of claim 1, further comprising means for temporarily containing the test gas within the vicinity of said combustible gas sensor.
Claim 9
Dependent Claim
90 words
A remote combustible gas sensor, comprising: a. a combustible gas sensor; b. a transmitter housing connected to said combustible gas sensor for transmitting signals indicating a predetermined level of combustible gas; c. a calibration test adaptor having a main body portion attached to said combustible gas sensor; and, d. means provided on said main body portion for receiving and distributing test gas, further comprising: i. said main body portion having a bore therethrough; and, ii. a flexible bladder attached to said main body portion and in communication with said bore.
Claim 10
Dependent Claim
90 words
A remote combustible gas sensor, comprising: a. a combustible gas sensor; b. a transmitter housing connected to said combustible gas sensor for transmitting signals indicating a predetermined level of combustible gas; c. a calibration test adaptor having a main body portion attached to said combustible gas sensor; and, d. means provided on said main body portion for receiving and distributing test gas, further comprising: i. said main body portion having a bore therethrough; and, ii. a flexible bladder attached to said main body portion and in communication with said bore.
Claim 11
Dependent Claim
23 words
The remote sensor of claim 8, further comprising means for temporarily containing the test gas within the vicinity of said combustible gas sensor.
Claim 12
Dependent Claim
21 words
The remote sensor of claim 8, further comprising means mounted on said bladder for slowly releasing test gas from said bladder.
Claim 13
Dependent Claim
16 words
The remote sensor of claim 10, wherein said release means comprises a sintered stainless steel plug.
Claim 14
Dependent Claim
17 words
The remote sensor of claim 8, further comprising restricting means for limiting the inflation of said bladder.
Claim 15
Dependent Claim
106 words
A remote combustible gas sensor, comprising: a. a combustible gas sensor; b. a transmitter housing connected to said combustible gas sensor for transmitting signals indicating a predetermined level of combustible gas; c. a calibration test adaptor having a main body portion attached to said combustible gas sensor; d. said main body portion having a bore therethrough; e. a flexible bladder mounted on said main body portion and in communication with said bore for receiving and distributing test gas; and f. means mounted between said combustible gas sensor and said main body portion for temporarily containing the test gas within the vicinity of said combustible gas sensor.
Claim 16
Dependent Claim
106 words
A remote combustible gas sensor, comprising: a. a combustible gas sensor; b. a transmitter housing connected to said combustible gas sensor for transmitting signals indicating a predetermined level of combustible gas; c. a calibration test adaptor having a main body portion attached to said combustible gas sensor; d. said main body portion having a bore therethrough; e. a flexible bladder mounted on said main body portion and in communication with said bore for receiving and distributing test gas; and f. means mounted between said combustible gas sensor and said main body portion for temporarily containing the test gas within the vicinity of said combustible gas sensor.
Claim 17
Dependent Claim
29 words
The remote sensor of claim 13, further comprising a washer positioned around the lower end of said bladder whereby inflation of said bladder is restricted at its lower end.
Claim 18
Dependent Claim
20 words
The remote sensor of claim 13, further comprising a sintered stainless steel plug positioned in one end of said bladder.
Claim 19
Dependent Claim
21 words
The remote sensor of claim 13, wherein said test gas containment means comprises an annular shaped cup open at each end.
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) | 1992-11-20 | 1993-05-22 | 1993-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-20 | 1997-05-22 | 1997-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-20 | 2001-05-22 | 2001-11-21 | $7700.00 | Window Closed / Lapsed |