US4249886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion control system
Assignee: Rosemount Inc
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Filing: 1979-05-22
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Granted: 1981-02-10
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Expires: 1999-05-22
Abstract
Abstract The well-known "Jack-shaft" or "Single-point" positioning or a two-point parallel combustion control system has been modified by a trim link member articulated on the master arm to introduce a phase angle between the master arm associated with fuel supply adjustment and the slave arm associated with the combustive agent supply adjustment in a combustion engine, boiler, heater, or the like, thereby to permit oxygen or air-to-fuel ratio adjustment at all times.
Inventors
- 👤 Forest L. Bush
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:40
CPC Classifications
F; F23; F23N; F23N1/00; F23N1/02; F23N1/027; F23N5/00; F23N5/003; F23N5/006; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/0346
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
114 words
In a combustion apparatus supplied with fuel mixed with an intake of a combustive agent, the combination of: a master member having an extremity movably mounted about a first axis for regulating the amount of fuel supplied; a slave member having an extremity movably mounted about a second axis for regulating the amount of combustive agent intake; a trim member positioned at a selectable angle relative to said master member and about the extremity thereof; and an intermediate mechanical link connected between said trim member and said slave member for establishing said master-slave relationship through said trim member thereby to establish a fuel-to-combustible agent ratio which is a function of said selectable relative angle.
Claim 2
Dependent Claim
114 words
In a combustion apparatus supplied with fuel mixed with an intake of a combustive agent, the combination of: a master member having an extremity movably mounted about a first axis for regulating the amount of fuel supplied; a slave member having an extremity movably mounted about a second axis for regulating the amount of combustive agent intake; a trim member positioned at a selectable angle relative to said master member and about the extremity thereof; and an intermediate mechanical link connected between said trim member and said slave member for establishing said master-slave relationship through said trim member thereby to establish a fuel-to-combustible agent ratio which is a function of said selectable relative angle.
Claim 3
Dependent Claim
21 words
The apparatus of claim 1 with said intermediate link being adjustably connected to said trim member and to said slave member.
Claim 4
Dependent Claim
14 words
The apparatus of claim 1 with means for independently adjusting said adjustable relative member.
Claim 5
Dependent Claim
24 words
The apparatus of claim 3 with said adjusting means being operative on an extremity of said trim member opposite to said master member extremity.
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) | 1984-02-10 | 1984-08-11 | 1985-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-10 | 1988-08-11 | 1989-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-10 | 1992-08-11 | 1993-02-10 | $7700.00 | Window Closed / Lapsed |