Patent US2858043A successfully refreshed from Google Patents.
Patent AT133539B successfully refreshed from Google Patents.
US4072003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double twisting machine of flyer type
Assignee: Nabtesco Corp
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Filing: 1977-02-01
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Granted: 1978-02-07
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Expires: 1997-02-01
Abstract
Abstract Herein disclosed is a double twisting machine of flyer type, which comprises a pair of rotatable fliers, a pair of bow guides formed with a through bore for allowing wire elements to pass therethrough, two pairs of guide holders each retained in one end of each of the fliers for holding one end of each of the bow guides, and two pairs of shock-absorbing elastic members each interposed between each of the fliers and each of the bow guides through the corresponding one of the guide holders. The fliers are in spherical contact with the guide holders so as to assure smooth swinging motions of the bow guides.
Inventors
- 👤 Kazuhiko Mino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:49
CPC Classifications
D; D01; D01H; D01H1/00; D01H1/10; D01H7/00; D01H7/02; D01H7/86; D01H7/868; D07; D07B; D07B3/00; D07B3/02; D07B3/022
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
109 words
A double twisting machine comprising a pair of rotatable fliers, a pair of bow guides formed with a through bore for allowing wire elements to pass therethrough, two pair of guide holders each retained in one end of each of said fliers for holding one end of each of said bow guides, and two pair of shock-absorbing elastic members each interposed between each of said fliers and each of said bow guides through the corresponding one of said guide holders, said guide holders being universally movably connected at an extreme end of each of said elastic members with said fliers to assure smooth swinging motions of said bow guides.
Claim 2
Dependent Claim
109 words
A double twisting machine comprising a pair of rotatable fliers, a pair of bow guides formed with a through bore for allowing wire elements to pass therethrough, two pair of guide holders each retained in one end of each of said fliers for holding one end of each of said bow guides, and two pair of shock-absorbing elastic members each interposed between each of said fliers and each of said bow guides through the corresponding one of said guide holders, said guide holders being universally movably connected at an extreme end of each of said elastic members with said fliers to assure smooth swinging motions of said bow guides.
Claim 3
Dependent Claim
105 words
A double twisting machine according to claim 1, wherein each of said fliers has two inclined hollow portions each formed both with a bore, in which the corresponding one of said guide holders is retained through the corresponding one of said elastic members, and with a spherical seat which is positioned at the rear end of said bore, and wherein each of said guide holders is formed at its rear end with a flange which is formed at its front end with a spherical surface of such a curvature as can be smoothly fitted in the spherical seat of the corresponding one of said fliers.
Claim 4
Dependent Claim
25 words
A double twisting machine according to claim 2, wherein said spherical seat is made concave while the spherical surface of said flange is made convex.
Claim 5
Dependent Claim
25 words
A double twisting machine according to claim 2, wherein said spherical seat is made convex while the spherical surface of said flange is made concave.
Claim 6
Dependent Claim
63 words
A double twisting machine according to claim 2, wherein each of the inclined hollow portions of said fliers includes a separate holding member which can be fastened to the remaining portion of the corresponding one of said hollow portions so as to fix in position and remove the corresponding one of said guide holders together with the corresponding one of said bow guides.
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) | 1981-02-06 | 1981-08-08 | 1982-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-06 | 1985-08-08 | 1986-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-06 | 1989-08-08 | 1990-02-07 | $7700.00 | Window Closed / Lapsed |