Patent US4726019A successfully refreshed from Google Patents.
Patent US3824641A successfully refreshed from Google Patents.
US3824641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camping tool
Assignee: Individual
•
Filing: 1972-07-31
•
Granted: 1974-07-23
•
Expires: 1992-07-31
Abstract
Abstract An ax with a flat top on its poll; a lug projecting from the top of the poll spaced from but near the heel of the poll; the lug has a substantially flat cavity extending longitudinally of the ax and has a prong extended from the poll inside the cavity. Several attachments for various camping implements have a flat securing flange slideably fitting into the lug cavity and each flange has a hole engageable with the prong in the cavity and an indentation on the portion of the flange projecting beyond said cavity. A securing wedge is insertable into said cavity oppositely to said flange so as to tightly fill the space between the flange and the top of the cavity in the lug and a set screw on said wedge is engageable in said indentation in the flange in the securing position to hold the camping implement securely in position.
Inventors
- 👤 F Shandel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:15
CPC Classifications
B; B25; B25F; B25F1/00; B25F1/02; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7062
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
285 words
In a camping implement, an ax having a poll, with a handle secured therein, a heel on said poll, a flat top on the poll adjacent said heel, a lug of substantially U-shaped cross-section formed integrally transversely across said flat top, an integral pin extended from said flat top within the cavity of said lug, the top of said pin being spaced from the top wall of the cavity in the U-shaped lug, interchangeable camping implements, a flat portion of each implement being engageable with said pin and with said flat top, the thickness of said flat portion being less than the height of the cavity in said U-shaped lug, a wedge fitting into the space in the cavity of said U-shaped lug above the top of said pin, said flat portion of each implement having a pocket in its upper surface spaced from said pin, and a detachable securing element on said wedge engaged with said pocket so as to tighten said wedge in said cavity holding said implement in place, said flat portion being a flange extended from each implement, said flange having a hole therethrough fitting over said pin, a shoulder on each implement engaging the end of said lUg nearest to said heel, the distance between said hole and said shoulder being equal to the distance between said heel-end of said lug and said pin, an abutment shoulder on said wedge spaced from the ends of the wedge abutting the adjacent end of said lug, the distance between said abutment shoulder and said securing means being equal to the distance from the end of the lug adjacent said wedge and said pocket thereby to position the wedge registering with said pocket.
Claim 2
Dependent Claim
285 words
In a camping implement, an ax having a poll, with a handle secured therein, a heel on said poll, a flat top on the poll adjacent said heel, a lug of substantially U-shaped cross-section formed integrally transversely across said flat top, an integral pin extended from said flat top within the cavity of said lug, the top of said pin being spaced from the top wall of the cavity in the U-shaped lug, interchangeable camping implements, a flat portion of each implement being engageable with said pin and with said flat top, the thickness of said flat portion being less than the height of the cavity in said U-shaped lug, a wedge fitting into the space in the cavity of said U-shaped lug above the top of said pin, said flat portion of each implement having a pocket in its upper surface spaced from said pin, and a detachable securing element on said wedge engaged with said pocket so as to tighten said wedge in said cavity holding said implement in place, said flat portion being a flange extended from each implement, said flange having a hole therethrough fitting over said pin, a shoulder on each implement engaging the end of said lUg nearest to said heel, the distance between said hole and said shoulder being equal to the distance between said heel-end of said lug and said pin, an abutment shoulder on said wedge spaced from the ends of the wedge abutting the adjacent end of said lug, the distance between said abutment shoulder and said securing means being equal to the distance from the end of the lug adjacent said wedge and said pocket thereby to position the wedge registering with said pocket.
Claim 3
Dependent Claim
46 words
The camping implement specified in claim 1, and the thickness of said flat portion being about equal to the height of said pin, and the thickness of said wedge being about equal to the distance between said pin and the top wall in said lug cavity.
Claim 4
Dependent Claim
53 words
The camping implement specified in claim 1, and one of said interchangeable implements being a spade, said flange extending from the wider edge of said spade and substantially at right angles to the plane of said spade, and said shoulder being formed at about the intersection of said flange and said base edge.
Claim 5
Dependent Claim
32 words
The camping implement specified in claim 3, and other interchangeable implements being a pick and a hoe, each having a base end, and said flange respectively extending longitudinally from said base end.
Claim 6
Dependent Claim
32 words
The camping implement specified in claim 1, and the end of said lug nearest said heel being spaced from said heel inwardly of said flat top thereby to form a bearing surface.
Claim 7
Dependent Claim
26 words
The camping implement specified in claim 5, and said flat portion being a flat plate having an aperture therethrough fitting over the exterior of said lug.
Claim 8
Dependent Claim
51 words
The camping implement specified in claim 6, and one end of said flat plate forming a hoe edge, the other end of said flat plate forming a rake, a pocket being formed equally spaced from each end of said aperture, said securing means being engageable selectively with either of said pockets.
References Cited (Backward Citations)
US3245094A
Cited
US3561023A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |