US4098298A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hose
Assignee: Individual
•
Filing: 1975-12-30
•
Granted: 1978-07-04
•
Expires: 1995-12-30
Abstract
Abstract Flexible reinforced pressure and suction hose of the type in which a wire helix is sandwiched between inner and outer wall members including a strip of relatively hard material disposed between the wall members and wound intermediate the turns of the helix and spaced therefrom for forming a helical cavity between the wall members containing the helix and permitting movement of the helix therein. A stranded reinforcing layer may also be included between the wall members.
Inventors
- 👤 Herbert Vohrer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:21
CPC Classifications
F; F16; F16L; F16L11/00; F16L11/04; F16L11/11; F16L11/112
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
134 words
In a reinforced pressure and suction hose of the type having a flexible inner hose wall, a flexible outer hose wall and a wire helix disposed between said walls, the improvement comprising strip means, of a relatively hard and stiff material as compared to that of said hose walls, said strip means being bonded to and disposed between said hose walls intermediately within the space between the turns of the wire helix, for forming a helical cavity between said hose walls containing said helix unbonded therein, and said strip means being of a width and thickness so as to be spaced from the turns of said helix to permit movement of the unbonded helix in said cavity and to prevent bending and folding of the inner and outer hose walls except at the cavity.
Claim 2
Dependent Claim
134 words
In a reinforced pressure and suction hose of the type having a flexible inner hose wall, a flexible outer hose wall and a wire helix disposed between said walls, the improvement comprising strip means, of a relatively hard and stiff material as compared to that of said hose walls, said strip means being bonded to and disposed between said hose walls intermediately within the space between the turns of the wire helix, for forming a helical cavity between said hose walls containing said helix unbonded therein, and said strip means being of a width and thickness so as to be spaced from the turns of said helix to permit movement of the unbonded helix in said cavity and to prevent bending and folding of the inner and outer hose walls except at the cavity.
Claim 3
Dependent Claim
29 words
Hose according to claim 1 wherein the inner hose wall and the outer hose wall are of a material selected from the group consisting of thermoplastic materials, and elastomers.
Claim 4
Dependent Claim
31 words
Hose according to claim 1 further comprising a plurality of reinforcing elements of flexible material disposed between said hose walls and passing between said strip means and said inner hose wall.
Claim 5
Dependent Claim
19 words
Hose according to claim 3 wherein the reinforcing elements are applied directly to the outside of the inner wall.
Claim 6
Dependent Claim
20 words
Hose according to claim 3 wherein said reinforcing elements are further passed between said helix and said outer hose wall.
Claim 7
Dependent Claim
20 words
Hose according to claim 1 wherein the inner and outer hose walls and the strip means are all of PVC.
Claim 8
Dependent Claim
23 words
Hose according to claim 6 wherein said wire helix is of a material selected from the group consisting of metals, polyamides, and polyolefins.
References Cited (Backward Citations)
US1005134A
Cited
US2330651A
Cited
US2448485A
Cited
US2558763A
Cited
GB743743A
Cited
US3076737A
Cited
GB904741A
Cited
US3137319A
Cited
US3210234A
Cited
FR1499956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-03 | 1982-01-02 | 1982-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-03 | 1986-01-02 | 1986-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-03 | 1990-01-02 | 1990-07-04 | $7700.00 | Window Closed / Lapsed |