US4679599A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety hose
Assignee: Gates Corp
•
Filing: 1985-02-08
•
Granted: 1987-07-14
•
Expires: 2005-02-08
Abstract
Abstract A safety hose having a stretchable elastomeric tube and cover that sandwich a twined reinforcement that exhibits a circumferential reinforcement component and a weaker longitudinal reinforcement component that breaks when the hose is stretched.
Inventors
- 👤 Mark A. Newberry
- 👤 Dennis C. Kemper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:21
CPC Classifications
B; B60; B60K; B60K15/00; B60K15/01; D; D04; D04B; D04B1/00; D04B1/22; D04B1/225; F; F16; F16L; F16L11/00; F16L11/04; F16L11/08; F16L11/085; F16L11/12; B60K15/03; B60K2015/03328; B60K2015/03375; B60K15/04; B60K2015/0458; B60K2015/0464; D10; D10B; D10B2505/00; D10B2505/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
119 words
In a hose of the type having an elastomeric tube, a twined reinforcement encircling the tube and an elastomeric cover encircling the tube and reinforcement, the improvement comprising: a knit reinforcement comprising intermittent leads of a first yarn and a second, tensionally weaker yarn alternatively knitted together with knit stitched loops that each have a helically oriented component and a longitudinally oriented component in relation to the tube and wherein a cumulative tensile strength of the longitudinally oriented loop components is substantially less than a cumulative tensile strength of the helically oriented loop components such that some of the loops of the second yarn define a means to break and permit substantial elongation of the hose without tube rupture.
Claim 2
Dependent Claim
119 words
In a hose of the type having an elastomeric tube, a twined reinforcement encircling the tube and an elastomeric cover encircling the tube and reinforcement, the improvement comprising: a knit reinforcement comprising intermittent leads of a first yarn and a second, tensionally weaker yarn alternatively knitted together with knit stitched loops that each have a helically oriented component and a longitudinally oriented component in relation to the tube and wherein a cumulative tensile strength of the longitudinally oriented loop components is substantially less than a cumulative tensile strength of the helically oriented loop components such that some of the loops of the second yarn define a means to break and permit substantial elongation of the hose without tube rupture.
Claim 3
Dependent Claim
26 words
The hose as claimed in claim 1 wherein the tensile strength of the first yarn is at least 3.5 times the strength of the second yarn.
Claim 4
Dependent Claim
31 words
The hose as claimed in claim 2 wherein the tensile strength of the second yarn is about 6 pounds and the tensile strength of the first yarn is about 21 pounds.
Claim 5
Dependent Claim
28 words
The hose as claimed in claim 1 wherein the hose may be elongated at least 150% of its length without tube rupture when the hose is longitudinally pulled.
Claim 6
Dependent Claim
28 words
The hose as claimed in claim 1 wherein the hose may be elongated at least 200% of its length without tube rupture when the hose is longitudinally pulled.
Claim 7
Dependent Claim
93 words
In a hose of the type having an elastomeric tube, a twined reinforcement encircling the tube and an elastomeric cover encircling the tube and reinforcement, the improvement comprising: a twined textile reinforcement having a circumferentially oriented reinforcement component and a longitudinally oriented reinforcement component wherein a cumulative tensile strength of the longitudinally oriented component is substantially less than a cumulative tensile strength of the helically oriented component such that parts of the reinforcement of the longitudinally oriented component define a means to break and permit substantial elongation of the hose without tube rupture.
Claim 8
Dependent Claim
93 words
In a hose of the type having an elastomeric tube, a twined reinforcement encircling the tube and an elastomeric cover encircling the tube and reinforcement, the improvement comprising: a twined textile reinforcement having a circumferentially oriented reinforcement component and a longitudinally oriented reinforcement component wherein a cumulative tensile strength of the longitudinally oriented component is substantially less than a cumulative tensile strength of the helically oriented component such that parts of the reinforcement of the longitudinally oriented component define a means to break and permit substantial elongation of the hose without tube rupture.
References Cited (Backward Citations)
US486621A
Cited
US2230723A
Cited
US3253618A
Cited
US3682202A
Cited
US4025684A
Cited
US4091063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-07-13 | 1991-01-12 | 1991-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-07-13 | 1995-01-12 | 1995-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-07-13 | 1999-01-12 | 1999-07-14 | $7700.00 | Window Closed / Lapsed |