US4102478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Needle threader
Assignee: Individual
•
Filing: 1976-12-27
•
Granted: 1978-07-25
•
Expires: 1996-12-27
Abstract
Abstract An improved needle-threading device is disclosed wherein a wire loop, having a smaller loop disposed in the medial portion, is rigidly sandwiched at double hook-shaped end portions between an outer support member and an inner support member. The outer and inner support members are tubular with the inner member fitting within the outer member and engaging the double hook-shaped end portions of the wire loop, thereby holding the wire loop rigidly in place and furnishing a convenient handle with which to hold the needle-threading apparatus during use.
Inventors
- 👤 Constantin Samoilov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:39
CPC Classifications
D; D05; D05B; D05B87/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
212 words
In a needle threader: a handle portion comprising: a first support member comprising an outer support member of tubular shape, a second support member for cooperative interengagement with said first support member, said members having mutually interengaging surfaces, said second support member comprising an inner support member snugly disposed within said outer support member, a wire threading loop having at one end two terminal wire ends and at the opposite end, medially of said wire ends, a thread-engaging tip portion, said wire ends being tightly sandwiched between said interengaging surfaces of said inner and outer support members so as to be held rigidly in place thereby, said outer support member including a hollow axial bore for slidably receiving said inner support member and extending from an open end of said outer support member to a closed end thereof, means defining a wire passage extending axially through said closed end and opening into said bore for receiving a portion of said wire threading loop, and a raised collar portion extending inwardly of said bore from said closed end, said collar portion surrounding the opening of said wire passage into said bore and being spaced from the sidewalls of said bore so as to fit snugly within a portion of said inner support member.
Claim 2
Dependent Claim
212 words
In a needle threader: a handle portion comprising: a first support member comprising an outer support member of tubular shape, a second support member for cooperative interengagement with said first support member, said members having mutually interengaging surfaces, said second support member comprising an inner support member snugly disposed within said outer support member, a wire threading loop having at one end two terminal wire ends and at the opposite end, medially of said wire ends, a thread-engaging tip portion, said wire ends being tightly sandwiched between said interengaging surfaces of said inner and outer support members so as to be held rigidly in place thereby, said outer support member including a hollow axial bore for slidably receiving said inner support member and extending from an open end of said outer support member to a closed end thereof, means defining a wire passage extending axially through said closed end and opening into said bore for receiving a portion of said wire threading loop, and a raised collar portion extending inwardly of said bore from said closed end, said collar portion surrounding the opening of said wire passage into said bore and being spaced from the sidewalls of said bore so as to fit snugly within a portion of said inner support member.
Claim 3
Dependent Claim
14 words
A device according to claim 1 wherein said raised collar portion is sharply ridged.
Claim 4
Dependent Claim
61 words
A device according to claim 1 wherein said wire ends are reversely curved and generally S-shaped so as to hook over and engage said raised collar portion and become sandwiched between mutually interengaged surfaces of said collar portion, said inner support member and the sidewalls of said bore when said inner support member is disposed fully within said outer support member.
Claim 5
Dependent Claim
26 words
A device according to claim 3 wherein said wire threading loop includes a small, tight tip loop, disposed medially between its terminal ends for gripping thread.
Claim 6
Dependent Claim
63 words
A device according to claim 2 wherein said wire ends define reversely curved and generally S-shaped hooked ends that hook over and engage said sharply ridged collar portion and become tightly sandwiched between mutually interengaged surfaces of said collar portion, said inner support member and the sidewalls of said bore when said inner support member is disposed fully within said outer support member.
Claim 7
Dependent Claim
26 words
A device according to claim 5 wherein said wire threading loop includes a small, tight tip loop disposed medially between its terminal ends for gripping thread.
References Cited (Backward Citations)
CH68963A
Cited
US1144504A
Cited
DE386973C
Cited
GB344145A
Cited
FR828829A
Cited
US2416260A
Cited
US2544063A
Cited
US3404707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-24 | 1982-01-23 | 1982-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-24 | 1986-01-23 | 1986-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-24 | 1990-01-23 | 1990-07-25 | $7700.00 | Window Closed / Lapsed |