US3589851A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-fueled lighter
Assignee: Heinrich Maltner GmbH
•
Filing: 1969-07-09
•
Granted: 1971-06-29
•
Expires: 1989-07-09
Abstract
Abstract A gas-fueled lighter comprises a fuel tank for liquified gaseous fuel, a burner structure having an inlet and an outlet, igniting means for igniting fuel issuing in gaseous state from the outlet, vaporizing means upstream of the inlet for receiving fuel in liquid state from the latter and supplying it in vaporized state to the inlet of the burner structure, and a throttling device interposed between the vaporizing means and the fuel tank so as to throttle the flow of fuel from the latter to the former. The throttling device is thermally insulated at least from the burner structure and the vaporizing means so as to prevent vaporization of fuel in the throttling device prior to entry into the vaporizing means.
Inventors
- 👤 Peter Rabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:01
CPC Classifications
F; F23; F23Q; F23Q2/00; F23Q2/16; F23Q2/173
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
134 words
A gas-fueled lighter, comprising fuel-tank means adapted to contain a supply of liquefied gaseous fuel; burner means having an inlet and an outlet; igniting means for igniting fuel issuing in gaseous state from said outlet; vaporizing means upstream of said inlet and communicating with the same and with said fueltank means for receiving fuel in liquid state from the latter and supplying it in vaporized state to the former; a throttling device interposed between and communicating with said fuel-tank means and said vaporizing means for throttling the flow of fuel from the former to the latter; and thermally insulating means thermally insulating said throttling device for preventing direct transmission of heat to fuel in said throttling device past said vaporizing means in response to transmission of heat to the region of said vaporizing means.
Claim 2
Dependent Claim
134 words
A gas-fueled lighter, comprising fuel-tank means adapted to contain a supply of liquefied gaseous fuel; burner means having an inlet and an outlet; igniting means for igniting fuel issuing in gaseous state from said outlet; vaporizing means upstream of said inlet and communicating with the same and with said fueltank means for receiving fuel in liquid state from the latter and supplying it in vaporized state to the former; a throttling device interposed between and communicating with said fuel-tank means and said vaporizing means for throttling the flow of fuel from the former to the latter; and thermally insulating means thermally insulating said throttling device for preventing direct transmission of heat to fuel in said throttling device past said vaporizing means in response to transmission of heat to the region of said vaporizing means.
Claim 3
Dependent Claim
46 words
A lighter as defined in claim 1, wherein said throttling device comprises a throttling element having an exposed surface, and said insulating means comprises a thermally insulating element thermally insulating said throttling element and in surface-to-surface contact with at least a portion of said exposed surface.
Claim 4
Dependent Claim
23 words
A lighter as defined in claim 1, wherein said throttling device consists at least in part of porous material having thermally insulating properties.
Claim 5
Dependent Claim
63 words
A lighter as defined in claim 1, wherein said insulating means comprises a first portion of thermally insulating material provided with a recess having a bottom wall formed with a fuel passage communicating with said recess and said fuel tank means, and said throttling device comprising a second portion received in said recess disposed on said bottom wall and constituting a throttling element.
Claim 6
Dependent Claim
31 words
A lighter as defined in claim 4, wherein said fuel tank means consists of synthetic plastic material, and wherein said first portion is of one piece with said fuel tank means.
Claim 7
Dependent Claim
42 words
A lighter as defined in claim 4, wherein said second portion consists of yieldable porous material; said throttling device further comprising compressing means for subjecting said second portion to a variable compression whereby to adjust the throttling action of said throttling device.
Claim 8
Dependent Claim
56 words
A lighter as defined in claim 6, said compressing means including an engaging portion, and said insulating means comprising an annular member of thermally insulating material interposed between said second portion and said engaging portion of said compressing means so that the latter may effect compressing of said second portion without being in heat-exchanging engagement therewith.
Claim 9
Dependent Claim
53 words
A lighter as defined in claim 1, wherein said burner means includes a surface portion proximal to said outlet and which is heated by the flame resulting upon ignition of fuel issuing from said outlet; said vaporizing means being in heat-exchanging contact with said burner unit for exchanging heat with said surface portion.
Claim 10
Dependent Claim
24 words
A lighter as defined in claim 8, wherein said vaporizing means comprises a vaporizing element composed of a porous material having good thermal conductivity.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |