US4023606A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice ax, and method and extrusion apparatus for the manufacture thereof
Assignee: Individual
•
Filing: 1976-02-05
•
Granted: 1977-05-17
•
Expires: 1996-02-05
Abstract
Abstract Disclosed is an ice ax comprising a pickax blade, a pickax spur, a handle projecting transversely from the blade connecting the spur and the blade and having a plastic jacket of oval cross section defining a core area of foamed plastic material and means for permanent and rigid anchoring of the blade to the handle whereby a segment of the anchoring means passes through the handle core and rigidly joins another segment of the anchoring means extending from the blade. A method for the manufacture of the ice ax and an apparatus for the extrusion of the plastic jacket and foam core of the ax handle are also disclosed.
Inventors
- 👤 Franz Kneissl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:48
CPC Classifications
A; A63; A63B; A63B29/00; A63B29/08; B; B25; B25D; B25D7/00; B25G; B25G1/00; B25G1/10; B25G3/00; B25G3/34
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
104 words
An ice ax comprising: a pickax blade, a pickax spur; a handle projecting transversely from said blade connecting said spur and said blade and having a plastic jacket of oval cross section defining a core area of foamed plastic material, and a pair of rigid members, each member being fixedly attached to said blade and extending opposite one another lengthwise from said blade along the inside surface of the curvature peaks of the oval cross section of said jacket and being connected by a rigid bridge member extending through said core and being of substantially smaller volume than the volume of said core area.
Claim 2
Dependent Claim
104 words
An ice ax comprising: a pickax blade, a pickax spur; a handle projecting transversely from said blade connecting said spur and said blade and having a plastic jacket of oval cross section defining a core area of foamed plastic material, and a pair of rigid members, each member being fixedly attached to said blade and extending opposite one another lengthwise from said blade along the inside surface of the curvature peaks of the oval cross section of said jacket and being connected by a rigid bridge member extending through said core and being of substantially smaller volume than the volume of said core area.
Claim 3
Dependent Claim
19 words
The ice ax of claim 1 having a means for anchoring said bridge member in said foamed plastic material.
Claim 4
Dependent Claim
29 words
The ice ax of claim 2 wherein said bridge anchoring means comprises recesses in the rigid bridge member, said recess being in intimate communication with said foamed plastic material.
Claim 5
Dependent Claim
27 words
The ice ax of claim 2 wherein said bridge anchoring means comprises projections extending from said rigid bridge member into intimate communication with said foamed plastic material.
Claim 6
Dependent Claim
15 words
The ice ax of claim 1, wherein said plastic jacket comprises a fiber-reinforced plastic material.
Claim 7
Dependent Claim
19 words
The ice ax of claim 1, wherein said rigid members extending from said blade are integral with said blade.
Claim 8
Dependent Claim
20 words
The ice ax of claim 6, wherein said rigid members extending from said blade are integral with said bridge member.
Claim 9
Dependent Claim
19 words
The ice ax of claim 1, wherein said rigid members are comprised of the same material as said blade.
Claim 10
Dependent Claim
31 words
The ice ax of claim 1, wherein said blade has, at the beginning of said extension sections, a shoulder fitted to hold the end of said plastic jacket facing said blade.
Claim 11
Dependent Claim
30 words
The ice ax of claim 1, wherein said plastic jacket has at the end that faces said spur, a shoulder fitted to support a sealing case which supports said spur.
References Cited (Backward Citations)
US1728619A
Cited
US1685588A
Cited
US3114973A
Cited
US3712659A
Cited
US3770033A
Cited
US3770033B1
Cited
US3735434A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |