Apparatus for continuously making a hose
Abstract
Abstract An apparatus for continuously making a hose which comprises a plurality of similar rolls each formed with helical grooves thereon and arranged so as to collectively form a cylindrical surface defined by the outer, peripheries thereof, the grooves on each of these rolls being disposed so that they are successively axially offset from the grooves on the proceeding roll by a dimension derived by dividing the distance between axially adjacent grooves by the number of the rolls, so that a hard resilient wire supplied into the grooves on the rotating rolls is formed into a coil while a tacky strap of hose wall material is entrained onto the wire, so that the adjacent edges of the tacky hose wall material helically rotating are joined to thereby form a hose.
Inventors
- 👤 Hiroyuki Sawada
- 👤 Saburo Miyawaki
- 👤 Hajime Ishikawa
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |