US4333596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High strength needle assembly with sharpenable cutting edge
Assignee: Individual
•
Filing: 1980-07-28
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Granted: 1982-06-08
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Expires: 2000-07-28
Abstract
Abstract The assembly includes a shank part having a tip and cylindrical hollow portion, a base part having a central bore and a knife part. The central bore has first and second sections, the first section having an inner diameter equal to the outer diameter of the cylindrical portion, such that the shank can be inserted therein and secured thereto by an adhesive. The second section has an inner diameter equal to the inner diameter of the cylindrical portion. The knife part includes a body portion with a cutting edge on one end and a protrusion on the other end, the protrusion being adapted to be received within and secured to a recess adjacent the second section of the bore. The knife part extends beyond the base in a direction substantially parallel to the axis of the base such that the cutting edge is accessible for re-sharpening.
Inventors
- 👤 Steven Kunreuther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:46
CPC Classifications
B; B65; B65C; B65C7/00; B65C7/003; B65C7/005
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
70 words
A needle assembly for dispensing fasteners or the like comprising a substantially cylindrical base having a central bore, a needle extending from one end of said base, said needle having an outer diameter smaller than the outer diameter of said base, a knife integral with and extending from and beyond the other end of said base, said knife comprising a cutting edge spaced from said other end of said base.
Claim 2
Dependent Claim
70 words
A needle assembly for dispensing fasteners or the like comprising a substantially cylindrical base having a central bore, a needle extending from one end of said base, said needle having an outer diameter smaller than the outer diameter of said base, a knife integral with and extending from and beyond the other end of said base, said knife comprising a cutting edge spaced from said other end of said base.
Claim 3
Dependent Claim
22 words
The assembly of claim 1, wherein said cutting edge is spaced from said other end of said base by a predetermined distance.
Claim 4
Dependent Claim
29 words
The assembly of claim 2, wherein said predetermined distance is at least as great as the distance between the radius of said bore and the radius of said base.
Claim 5
Dependent Claim
33 words
The assembly of claim 2, wherein said predetermined distance is at least two times greater than the dimension of said cutting edge measured along a direction parallel to the axis of said base.
Claim 6
Dependent Claim
27 words
The assembly of claim 2, wherein said predetermined distance is sufficient to permit said cutting edge to be sharpened with the knife in place on said base.
Claim 7
Dependent Claim
93 words
A needle assembly for dispensing fasteners or the like comprising a substantially cylindrical base, a needle extending from one end of said base and a knife comprising a body section extending from and beyond said other end of said base for a predetermined distance, said body section having a cutting edge at the extended end thereof, said cutting edge being exposed in its entirety and spaced from said other end of said base said predetermined distance to enable said cutting edge to be sharpened while said knife is in place on said base.
Claim 8
Dependent Claim
93 words
A needle assembly for dispensing fasteners or the like comprising a substantially cylindrical base, a needle extending from one end of said base and a knife comprising a body section extending from and beyond said other end of said base for a predetermined distance, said body section having a cutting edge at the extended end thereof, said cutting edge being exposed in its entirety and spaced from said other end of said base said predetermined distance to enable said cutting edge to be sharpened while said knife is in place on said base.
Claim 9
Dependent Claim
33 words
The assembly of claim 6, wherein said predetermined distance is at least two times greater than the dimension of said cutting edge measured along a direction parallel to the axis of said base.
Claim 10
Dependent Claim
37 words
The needle of claim 6, wherein said base has a central bore and wherein said predetermined distance is at least as great as the difference between the radius of said bore and the radius of said base.
Claim 11
Dependent Claim
32 words
The assembly of claim 6, wherein said base has a slot and said knife further comprises a mounting section extending from said body section and adapted to be received within said slot.
Claim 12
Dependent Claim
21 words
The assembly of claim 9, wherein the width of said mounting section is less than the width of said body section.
Claim 13
Dependent Claim
28 words
The assembly of claim 9, wherein said base has a central bore and wherein the width of said slot is substantially equal to the diameter of said bore.
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) | 1985-06-07 | 1985-12-07 | 1986-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-07 | 1989-12-07 | 1990-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-07 | 1993-12-07 | 1994-06-08 | $7700.00 | Window Closed / Lapsed |