US4014278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Needle bars for tufting machines
Assignee: Singer Co
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Filing: 1976-09-08
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Granted: 1977-03-29
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Expires: 1996-09-08
Abstract
Abstract A tufting machine having a needle bar for mounting a multiplicity of needles reciprocable into and out of a work piece. The needle bar has a longitudinally extending channel open to face the work piece for securely receiving an insert spaced from the longitudinally extending walls of the channel. The insert includes a multiplicity of grooves facing the respective longitudinally extending wall, and a needle is securely received intermediate each of the grooves and the corresponding wall.
Inventors
- 👤 Paul E. Jolley
- 👤 Harvey M. Wooten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:24
CPC Classifications
D; D05; D05C; D05C15/00; D05C15/04; D05C15/08; D05C15/16; D05C15/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
107 words
A needle bar for a tufting machine or the like for supporting a multiplicity of needles for reciprocable movement toward and away from a backing, each of which needles includes a shank portion, said needle bar comprising a longitudinally extending body portion having an open faced channel extending longitudinally therein and facing said backing, an insert secured in said channel spaced from at least one longitudinally extending wall thereof, said insert having a multiplicity of needle shank accommodating grooves extending in the direction of reciprocation of said needle and facing said longitudinally extending wall, and means for securing each shank intermediate a respective groove and said wall.
Claim 2
Dependent Claim
107 words
A needle bar for a tufting machine or the like for supporting a multiplicity of needles for reciprocable movement toward and away from a backing, each of which needles includes a shank portion, said needle bar comprising a longitudinally extending body portion having an open faced channel extending longitudinally therein and facing said backing, an insert secured in said channel spaced from at least one longitudinally extending wall thereof, said insert having a multiplicity of needle shank accommodating grooves extending in the direction of reciprocation of said needle and facing said longitudinally extending wall, and means for securing each shank intermediate a respective groove and said wall.
Claim 3
Dependent Claim
55 words
A needle bar as recited in claim 1 wherein said insert is spaced from both longitudinally extending walls of said channel and includes a multiplicity of needle shank accommodating grooves facing each of said walls, the grooves facing a first of said walls being offset longitudinally from the grooves facing the other of said walls.
Claim 4
Dependent Claim
43 words
A needle bar as recited in claim 2 wherein said channel and insert are substantially rectangular transverse to the longitudinally extending walls and in the direction parallel to the reciprocable movement of said needles, and said grooves are substantially parallel to said walls.
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) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |