US3624675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Felting needle
Assignee: Individual
•
Filing: 1970-08-11
•
Granted: 1971-11-30
•
Expires: 1990-08-11
Abstract
Abstract A felting needle constructed in the form of an elongated body having a shank portion and a barbed portion. The barbed portion has a plurality of barbs and terminates in a pointed end. A Vshaped or U-shaped circumferential indentation is provided somewhere along the length of the shank portion to define the weakest structural location along the length of the elongated body, which is called the fracture point.
Inventors
- 👤 Edson P Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:05
CPC Classifications
D; D04; D04H; D04H18/00; D04H18/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
78 words
A felting needle constructed as an elongated body having a pointed end and at least one barb adjacent said pointed end, the improvement comprising a fracture point means between the other end of said elongated body and said at least one barb for providing the weakest structural location along the length of said elongated body, whereby any significant impact stress exerted against said pointed end will cause said elongated body to break off at said weakest structural location.
Claim 2
Dependent Claim
78 words
A felting needle constructed as an elongated body having a pointed end and at least one barb adjacent said pointed end, the improvement comprising a fracture point means between the other end of said elongated body and said at least one barb for providing the weakest structural location along the length of said elongated body, whereby any significant impact stress exerted against said pointed end will cause said elongated body to break off at said weakest structural location.
Claim 3
Dependent Claim
21 words
A felting needle as defined in claim 1, wherein said fracture point means includes a pair of diametrically opposite V-shaped indentations.
Claim 4
Dependent Claim
28 words
A felting needle as defined in claim 1, wherein said fracture point means comprises a continuous circumferential groove formed transversely to the longitudinal axis of said elongated body.
Claim 5
Dependent Claim
14 words
A felting needle as defined in claim 3, wherein said circumferential groove is U-shaped.
Claim 6
Dependent Claim
28 words
A felting needle as defined in claim 1, wherein said fracture point means includes at least one notch formed transversely to the longitudinal axis of said elongated body.
Claim 7
Dependent Claim
16 words
A felting needle as defined in claim 5, wherein said at least one notch is V-shaped.
Claim 8
Dependent Claim
13 words
A felting needle as defined in claim 5, wherein said needle is U-shaped.
Claim 9
Dependent Claim
25 words
A felting needle as defined in claim 1, wherein said fracture point means comprises four equally spaced notches around the circumference of said elongated body.
Claim 10
Dependent Claim
16 words
A felting needle as defined in claim 8, wherein said four equally spaced notches are V-shaped.
References Cited (Backward Citations)
US2327416A
Cited
US3353243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |