US3818937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air flow control valve
Assignee: GANKE R
•
Filing: 1972-10-03
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Granted: 1974-06-25
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Expires: 1992-10-03
Abstract
Abstract An adjustable air flow control valve is provided for a gas burner or other fuel burning apparatus. The valve is located at the end of a pipe in which the fuel is flowing. The pipe has at least one air inlet opening in its side, and the valve has an end plate extending across the end of the pipe and two resilient flanges extending into the pipe. At least one of the flanges is positioned so that it can close the air inlet opening. The flanges fit snugly against the inside wall of the pipe and permit rotation of the valve to various positions in which the air inlet opening is fully closed, partially closed, or open.
Inventors
- 👤 Ganke R La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:05
CPC Classifications
F; F23; F23L; F23L13/00; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87587; Y10T137/87619; Y10T137/87627
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
178 words
An adjustable air flow control means for a fuel burning apparatus, comprising, a. a pipe for conveying fuel, said pipe having a cylindrical sidewall with at least one air inlet opening and provided with an inlet opening for said fuel and an outlet opening for said fuel and air, and b. a valve having 1. an end plate extending across the end of said pipe and perpendicular to the axis of said pipe, and 2. two flanges of resilient material bent from opposite sides of said end plate so as to be substantially perpendicular thereto, said flanges extending into the interior of said pipe adjacent opposite sides of said sidewall and springing outwardly into a snug fit against said sidewall so as to hold said valve in a fixed position in said pipe, yet permitting said valve to be rotated by a positively applied external force to other fixed positions, at least one of said flanges extending across said air inlet opening to varying degrees of closing or opening in the different positions of rotation of said valve.
Claim 2
Dependent Claim
178 words
An adjustable air flow control means for a fuel burning apparatus, comprising, a. a pipe for conveying fuel, said pipe having a cylindrical sidewall with at least one air inlet opening and provided with an inlet opening for said fuel and an outlet opening for said fuel and air, and b. a valve having 1. an end plate extending across the end of said pipe and perpendicular to the axis of said pipe, and 2. two flanges of resilient material bent from opposite sides of said end plate so as to be substantially perpendicular thereto, said flanges extending into the interior of said pipe adjacent opposite sides of said sidewall and springing outwardly into a snug fit against said sidewall so as to hold said valve in a fixed position in said pipe, yet permitting said valve to be rotated by a positively applied external force to other fixed positions, at least one of said flanges extending across said air inlet opening to varying degrees of closing or opening in the different positions of rotation of said valve.
Claim 3
Dependent Claim
108 words
two flanges of resilient material bent from opposite sides of said end plate so as to be substantially perpendicular thereto, said flanges being spaced apart the correct distance to fit into said fuel and air mixing pipe and spring outwardly into a snug fit against said pipe while permitting said valve to be rotated by a positively applied external force, at least one of said flanges being of a length such that when said end plate is placed against thE end of said pipe, said flange extends across said air inlet opening to varying degrees of closing or opening in the different positions of rotation of said valve.
Claim 4
Dependent Claim
108 words
two flanges of resilient material bent from opposite sides of said end plate so as to be substantially perpendicular thereto, said flanges being spaced apart the correct distance to fit into said fuel and air mixing pipe and spring outwardly into a snug fit against said pipe while permitting said valve to be rotated by a positively applied external force, at least one of said flanges being of a length such that when said end plate is placed against thE end of said pipe, said flange extends across said air inlet opening to varying degrees of closing or opening in the different positions of rotation of said valve.
Claim 5
Dependent Claim
87 words
The air flow control means of claim 1 wherein one of said flanges has a protrusion which bears against one side of said air inlet opening when said flange substantially closes said opening and which bears against an opposite side of said opening when said flange uncovers said opening to the fullest extent desired, said protrusion thereby limiting the rotation of said valve to positions between that of substantially closing said air inlet opening and that of opening said air inlet opening to the fullest extent desired.
Claim 6
Dependent Claim
103 words
two flanges of resilient material bent from opposite sides of said end plate so as to be substantially perpendicular thereto, said flanges extending into the interior of said pipe adjacent opposite sides of said sidewall and springing outwardly into a snug fit against said sidewall so as to hold said valve in a fixed position in said pipe, yet permitting said valve to be rotated by a positively applied external force to other fixed positions, at least one of said flanges extending across said air inlet opening to varying degrees of closing or opening in the different positions of rotation of said valve.
Claim 7
Dependent Claim
103 words
two flanges of resilient material bent from opposite sides of said end plate so as to be substantially perpendicular thereto, said flanges extending into the interior of said pipe adjacent opposite sides of said sidewall and springing outwardly into a snug fit against said sidewall so as to hold said valve in a fixed position in said pipe, yet permitting said valve to be rotated by a positively applied external force to other fixed positions, at least one of said flanges extending across said air inlet opening to varying degrees of closing or opening in the different positions of rotation of said valve.
Claim 8
Dependent Claim
30 words
Apparatus of claim 2 in which said protrusion continuously bears against a third side of said opening to prevent said valve from being pulled out of said pipe by accident.
Claim 9
Dependent Claim
21 words
Apparatus of claim 1 wherein said end plate of said valve has an opening for allowing the passage of fuel therethrough.
Claim 10
Dependent Claim
27 words
A valve for adjusting the size of an air inlet opening in a cylindrical fuel and air mixing pipe of a fuel burning apparatus, said valve comprising,
Claim 11
Dependent Claim
27 words
A valve for adjusting the size of an air inlet opening in a cylindrical fuel and air mixing pipe of a fuel burning apparatus, said valve comprising,
Claim 12
Dependent Claim
79 words
The valve of claim 5 wherein one of said flanges has a protrusion positioned to bear against one side of said opening when said flange substantially closes said opening and to bear against an opposite side of said opening when said flange uncovers said opening to the fullest extent desired, said protrusion thereby limiting the rotation of said valve to positions between that of substantially closing said opening and that of uncovering said opening to the fullest extent desired.
Claim 13
Dependent Claim
34 words
The valve of claim 6 in which said protrusion is positioned to continuously bear against a third side of said opening to prevent said valve from being pulled out of said pipe by accident.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-24 | 1977-12-24 | 1978-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-24 | 1981-12-24 | 1982-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-24 | 1985-12-24 | 1986-06-25 | $7700.00 | Window Closed / Lapsed |