US3663152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic flame adjusting means in a lighter
Assignee: Zenza Bronica Industries Inc
•
Filing: 1969-10-22
•
Granted: 1972-05-16
•
Expires: 1989-10-22
Abstract
Abstract In a lighter of the gas fuel type, a resilient porous filter means provided in a fluid passageway connecting a reservoir with a burner nozzle is contracted or expanded by a member automatically actuated towards or against said filter means in response to changes of pressure inside said reservoir, thereby flow of fluid vaporized by the filter means and ejected into the burner nozzle is controlled constant independently of changes of pressure in the reservoir. The density of porosity of said filter means is not only adjustable by said automatically actuated member but also adjustable by a manual operation, if desired.
Inventors
- 👤 Choju Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:49
CPC Classifications
F; F23; F23Q; F23Q2/00; F23Q2/16; F23Q2/173
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
316 words
In a lighter using liquid gas as a fuel, a combination comprising a reservoir adapted to contain a liquefied gas; a burner nozzle mounted externally of said reservoir; fluid passage means connecting said burner nozzle with said reservoir; resiliently compressible and expandable porous filter means in said fluid passage means and having continuous pores extending through said filter means and forming fluid passages therethrough; a first adjustment member axially movable in said fluid passage means and having one end engaging said resiliently compressible and expandable porous filter means on one side thereof and opposite end subjected to the gas pressure in the reservoir so that the gas pressure acts in opposition to the resilient expansion force of said filter means, said first adjustment member having spaced from said one end a first shoulder; an axially adjustable auxiliary adjustment member coaxially arranged with said first adjustment member and engaging said filter means on the other side thereof and having a second shoulder spaced from and facing said first shoulder; resilient means sandwiched between said shoulders and radially spaced from the remainder of said adjustment members so as to be freely radially expandable during axial compression thereof, said resilient means exerting a force on said first adjustment member in opposition to the gas pressure depending on the axial adjustment of said auxiliary adjustment member; and additional resilient means acting on said first adjustment member for pressing said one end thereof against said resilient filter means so that the compression of the latter will depend, on the one hand, on the axial adjustment of said auxiliary adjustment member, and, on the other hand, on the gas pressure in the reservoir whereby as the gas pressure decreases, the filter means and therewith the pores therein will expand to thereby keep the flow of gas through the pores and said passage means substantially constant during decrease of pressure in said reservoir.
Claim 2
Dependent Claim
316 words
In a lighter using liquid gas as a fuel, a combination comprising a reservoir adapted to contain a liquefied gas; a burner nozzle mounted externally of said reservoir; fluid passage means connecting said burner nozzle with said reservoir; resiliently compressible and expandable porous filter means in said fluid passage means and having continuous pores extending through said filter means and forming fluid passages therethrough; a first adjustment member axially movable in said fluid passage means and having one end engaging said resiliently compressible and expandable porous filter means on one side thereof and opposite end subjected to the gas pressure in the reservoir so that the gas pressure acts in opposition to the resilient expansion force of said filter means, said first adjustment member having spaced from said one end a first shoulder; an axially adjustable auxiliary adjustment member coaxially arranged with said first adjustment member and engaging said filter means on the other side thereof and having a second shoulder spaced from and facing said first shoulder; resilient means sandwiched between said shoulders and radially spaced from the remainder of said adjustment members so as to be freely radially expandable during axial compression thereof, said resilient means exerting a force on said first adjustment member in opposition to the gas pressure depending on the axial adjustment of said auxiliary adjustment member; and additional resilient means acting on said first adjustment member for pressing said one end thereof against said resilient filter means so that the compression of the latter will depend, on the one hand, on the axial adjustment of said auxiliary adjustment member, and, on the other hand, on the gas pressure in the reservoir whereby as the gas pressure decreases, the filter means and therewith the pores therein will expand to thereby keep the flow of gas through the pores and said passage means substantially constant during decrease of pressure in said reservoir.
Claim 3
Dependent Claim
165 words
A combination as defined in claim 1, wherein said reservoir is formed in a wall thereof with an opening and wherein said fluid passage means comprise tubular support means tightly fitted in said opening, said adjustment member being slidably guided in said tubular support means, said auxiliary adjustment member being arranged axially movable in said tubular support means, said auxiliary adjustment member having a transverse wall formed with an opening therethrough, said filter means being engaged at one face thereof by said transverse wall and at the opposite face by said one end of said adjustment member, the driver means extending from the exterior of said reservoir into said tubular support means axially adjustable relative to the latter and having a lower end engaging said auxiliary adjuStment member for adjusting the axial position of the latter so that said filter means may also be compressed to a variable degree by adjusting the axial position of said auxiliary adjustment member relative to said tubular support means.
Claim 4
Dependent Claim
55 words
A combination as defined in claim 2, wherein said driver means is threadingly connected to said tubular support means and including manually operable means fixed to a portion of said driver means outside said reservoir for turning said driver means about its axis to thereby adjust its axial position relative to said tubular support means.
Claim 5
Dependent Claim
124 words
A combination as defined in claim 2, wherein said driver means is tubular and wherein said burner nozzle means is axially slidably arranged in said tubular driver means and being formed in the wall thereof with an opening communicating with the interior of said tubular driver means, said burner nozzle having a lower end facing said transverse wall, and including a valve member in said lower end of said burner nozzle, biasing means for biasing said burner nozzle toward said transverse wall so that said valve member engages said transverse wall and closes the opening therethrough, and operating means connected to said burner nozzle for moving the latter and said valve member against the force of said biasing means away from said transverse wall.
Claim 6
Dependent Claim
35 words
A combination as defined in claim 1, wherein said adjustment member is formed and an axial bore therethrough and including a wick extending through said bore and having an upper end engaging said filter means.
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) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |