US3788797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel oil burner lead control mechanism
Assignee: Individual
•
Filing: 1972-11-29
•
Granted: 1974-01-29
•
Expires: 1992-11-29
Abstract
Abstract Positioning apparatus comprising a bell crank lever for providing a mechanical advantage to move an igniter tip on an oil burner inwardly and outwardly with respect to the location of a boiler. Slotted positioning and supporting guide rods having a wing-nut locking mechanism for locking the igniter tip in place when positioned. Support brackets connect the crank lever to an oil feed system that is rigidly connected to the guide rods and igniter tip for simultaneous movement of the brackets, lever feed system and igniter tip, with the guide rods indicating the position of the igniter tip.
Inventors
- 👤 R Mayfield
- 👤 L Mayfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:11
CPC Classifications
F; F23; F23D; F23D11/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
141 words
An oil burner positioning apparatus comprising: an igniter tip; a barrel piece connected to said igniter tip; an oil feed system connected to said barrel piece; a bell crank lever linkage mechanism connected to said oil feed system for moving said igniter tip, said barrel piece and said oil feed system along the axial direction of said barrel piece; a tubular piece having said barrel piece slidably mounted within; and a fireproof door having an opening with said tubular piece mounted within said opening; wherein said bell crank lever mechanism further includes a bell crank lever having an end connected to said oil feed system; a bar having a first and second end with said first end connected to the fulcrum of said bell crank lever; and a support connected to the second end of said bar and said fireproof door.
Claim 2
Dependent Claim
141 words
An oil burner positioning apparatus comprising: an igniter tip; a barrel piece connected to said igniter tip; an oil feed system connected to said barrel piece; a bell crank lever linkage mechanism connected to said oil feed system for moving said igniter tip, said barrel piece and said oil feed system along the axial direction of said barrel piece; a tubular piece having said barrel piece slidably mounted within; and a fireproof door having an opening with said tubular piece mounted within said opening; wherein said bell crank lever mechanism further includes a bell crank lever having an end connected to said oil feed system; a bar having a first and second end with said first end connected to the fulcrum of said bell crank lever; and a support connected to the second end of said bar and said fireproof door.
Claim 3
Dependent Claim
27 words
An oil burner positioning apparatus according to claim 1 wherein said bar is rotatably connected to both the fulcrum of said bell crank lever and said support.
Claim 4
Dependent Claim
25 words
An oil burner positioning apparatus according to claim 2 wherein said end of said bell crank lever is rotatably attached to said oil feed system.
Claim 5
Dependent Claim
19 words
An oil burner positioning apparatus according to claim 3 wherein said support is rigidly connected to said fireproof door.
Claim 6
Dependent Claim
57 words
An oil burner positioning system according to claim 4 further comprising: a pair of guide rods having their axial directions parallel to said barrel piece slidably connected to a pair of sleeves on said oil feed system and rigidly connected to said door, said guide rods having indicating marks to show the location of said igniter tip.
Claim 7
Dependent Claim
30 words
An oil burner positioning system according to claim 5 further comprising: a pair of wing nuts connected to said sleeves for locking the sleeves in position on said guide rods.
Claim 8
Dependent Claim
44 words
An oil burner positioning system according to claim 6 further comprising: flexible tubing connected to said oil feed system; and vanes arranged in a cone shape and connected to said barrel piece with said igniter tip axially displaced from the apex of said cone.
Claim 9
Dependent Claim
56 words
An oil burner positioning system according to claim 7 wherein said vanes are connected to said barrel piece and said flexible tubing is connected to said oil feed system so that operation of said bell crank lever linkage moves said tubing and said vanes, with said vanes moving along the axial direction of said barrel piece.
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) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |