Patent US4698068A successfully refreshed from Google Patents.
US4698068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire starter
Assignee: Individual
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Filing: 1985-09-20
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Granted: 1987-10-06
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Expires: 2005-09-20
Abstract
Abstract A fire igniting device which includes a rod of an ignitable material, particularly magnesium, and has a pyrophoric element adhered to the rod along its length. A head is secured to the rod, and also may be fitted to a case, so that a spent rod can be removed and discarded from a handle, and another rod installed. The case is adapted to receive the rod during periods of non-use, to protect it from contaminants; and, during use, the case may be fitted to the other end of the head so as to increase the effective length of the head and provide a more comfortable grip to the user. A metal striker for striking the pyrophoric element is conveniently tethered to the case. Magnesium shavings are scraped from the rod, and are then ignited by striking the pyrophoric element with the striker. The fire igniting device may be incorporated into the handle of a survival knife, whereby the handle functions as a case for the magnesium rod during periods of non-use.
Inventors
- 👤 Eric Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:46
CPC Classifications
C; C10; C10L; C10L11/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
136 words
A fire igniting device, comprising in combination: a rod composed of an ignitable material; a pyrophoric element; means for securing said pyrophoric element to said rod; a head including a rod receiving end and a case receiving end; means for removably securing said rod to said rod receiving end of said head, whereby said rod may be removed from said head and discarded allowing a new rod to be installed thereto; a case for receiving said rod during nonuse and means for removably securing said head to said case; means for fitting said case to said case receiving end of said head to increase the effective length of said head, thereby providing handle means; and a striker tethered to said casing for shaving particles from said rod and for striking said pyrophoric element to create sparking.
Claim 2
Dependent Claim
136 words
A fire igniting device, comprising in combination: a rod composed of an ignitable material; a pyrophoric element; means for securing said pyrophoric element to said rod; a head including a rod receiving end and a case receiving end; means for removably securing said rod to said rod receiving end of said head, whereby said rod may be removed from said head and discarded allowing a new rod to be installed thereto; a case for receiving said rod during nonuse and means for removably securing said head to said case; means for fitting said case to said case receiving end of said head to increase the effective length of said head, thereby providing handle means; and a striker tethered to said casing for shaving particles from said rod and for striking said pyrophoric element to create sparking.
Claim 3
Dependent Claim
76 words
The fire igniting device as set forth in claim 1, wherein said means for removably securing said rod to said rod receiving end of said head comprises a groove formed within a proximal end of said rod, a recess formed within said rod receiving end of said head, and means positioned within said recess to removably engage into said groove of said proximal end of said rod allowing removable engagement of said rod within said recess.
Claim 4
Dependent Claim
43 words
The fire igniting device as set forth in claim 2, wherein said means for removably engaging said groove positioned within said proximal end of said rod comprises a spring clip loosely positioned within a groove formed within a side wall defining said recess.
Claim 5
Dependent Claim
57 words
The fire igniting device as set forth in claim 3, wherein means for removably connecting said case to said case receiving end of said head comprises a groove formed within said case receiving end of said head and means positioned within said case for releasable engagement into said groove in said case receiving end of said head.
Claim 6
Dependent Claim
40 words
The fire igniting device as set forth in claim 4, wherein said means for releasably engaging into said groove in said case receiving end of said head comprises a spring clip loosely positioned within a groove located within said case.
Claim 7
Dependent Claim
33 words
The fire igniting device as set forth in claim 1, wherein said recess of said rod receiving end of said head is formed along the side of a side wall defining said recess.
Claim 8
Dependent Claim
25 words
The fire igniting device as set forth in claim 1, further including keyway means to prevent rotation of said rod when inserted into said recess.
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) | 1990-10-05 | 1991-04-06 | 1991-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-05 | 1995-04-06 | 1995-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-05 | 1999-04-06 | 1999-10-06 | $7700.00 | Window Closed / Lapsed |