US4168799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soaker hose
Assignee: BANSTAR Corp (UTAH CORP)
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Filing: 1977-09-16
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Granted: 1979-09-25
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Expires: 1997-09-16
Abstract
Abstract A porous flexible hose primarily of crumbed rubber and synthetic rubber reclaimed from rubber tires, ground to a relatively small granular size, with metal removed; such as, for example, would pass through a 30-mesh screen, process-mixed through an extruder, with a much smaller binder mix of primarily polyethylene, in the order of 25% by weight, and with approximately 0.5% of the mixture added sulphur and 0.5% oil that can be random mixed grades of automobile engine oil. The resulting product is useful as a soil watering soaker hose that has a high degree of flexibility along its length. It is a water leaking soaker hose formed in the process through the extruder with limited foaming from steam originating from absorbed moisture in the crumbed, reclaimed rubber tire material, and from residual gases venting from the material mix, with product mix heating in the extruder, forming some open cell fluid flow paths. The foaming with steam and gases from the mix also form labyrinth passageways between the rubber tire granules and the polyethylene binder mix, and also through the binder mix that is non-compatible with the rubber granules but that forms a physical interconnective structural material binder therefor.
Inventors
- 👤 James E. Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:54
CPC Classifications
C; C08; C08L; C08L17/00; B; B29; B29B; B29B17/00; B29B17/0026; B29B17/0042; B29B7/00; B29B7/74; B29B7/7476; B29B7/7495; B29C; B29C31/00; B29C31/04; B29C33/00; B29C33/30; B29C45/00; B29C45/03; B29C45/12; B29C45/125; B29C45/17; B29C45/72; B29C45/73; B29C48/00; B29C48/03; B29C48/05; B29C48/06; B29C48/07; B29C48/08; B29C48/09; B29C48/25; B29C48/269; B29C48/2694; B29C48/36; B29C48/362; B29C48/375; B29C48/388; B29C48/395; B29C48/50; B29C48/505; B29C48/53; B29C48/76; B29C48/88; B29C48/911; B29C48/919; B29C67/00; B29C67/20; B29C67/207; B29B17/04; B29B17/0404; B29B17/0408; B29C35/00; B29C35/16; B29C2035/1616; B29C48/001; B29C48/0012; B29C48/04; B29C48/10; B29K; B29K2021/00; B29K2105/00; B29K2105/04; B29K2105/25; B29K2105/251; B29K2105/26; B29L; B29L2023/00; B29L2023/005; B29L2030/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
59 words
A porous hose: comprising, primarily reclaimed rubber-like previously vulcanized material; a smaller portion binder mix of polyethylene, sulfur, and oil; with hose wall transverse cross-sectional area greater than transverse cross-sectional area of the hose opening; and with the hose walls containing a multiplicity of relatively small, in transverse cross-section, irregularly shaped labyrinth type channels providing many through-the-wall seepage passageways.
Claim 2
Dependent Claim
22 words
The porous hose of claim 1, with said rubber-like, previously vulcanized material comprising crumbed bits generally less than one-sixteenth inch in diameter.
Claim 3
Dependent Claim
27 words
The porous hose of claim 2, with the smaller binder mix of polyethylene, sulfur, and oil comprising a percentage by weight in the product of approximately 25%.
Claim 4
Dependent Claim
26 words
The porous hose of claim 3, with said smaller binder mix comprising a predominance of polyethylene and substantially smaller percentages by weight of sulfur and oil.
Claim 5
Dependent Claim
27 words
The porous hose of claim 4, with said percentage by weight of sulfur and oil comprising approximately equal amounts of sulfur and oil totaling approximately 1 percent.
Claim 6
Dependent Claim
26 words
The porous hose of claim 4, with said polyethylene having a density of approximately 0.946 and a melt point in the range of 0.22 to 0.55.
Claim 7
Dependent Claim
28 words
The porous hose of claim 6, with said hose comprising a heat fused extruded casing of said materials, the outer surface thereof having been rapidly chilled as extruded.
Claim 8
Dependent Claim
29 words
The porous of claim 7, with said labyrinth type channels being sized to substantially preclude seepage therethrough of water flowing through said hose at a predetermined normal flow pressure.
Claim 9
Dependent Claim
14 words
The porous hose of claim 8, with said oil comprising used vehicle engine oil.
Claim 10
Dependent Claim
66 words
A porous hose: consisting primarily of bits of reclaimed vehicle tire casings less the metallic content thereof; a smaller binder material amount of polyethylene, sulfur, and oil; with hose wall transverse cross-sectional area greater than transverse cross-sectional area of the hose opening; and with the hose walls containing a multiplicity of relatively small, in transverse cross-section, irregularly shaped labyrinth type channels providing many through-the-wall seepage passageways.
Claim 11
Dependent Claim
38 words
The porous hose of claim 10, with said bits of tire casings comprising casings crumbed to form bits generally less than one-sixteenth inch diameter granular size, and comprising a percentage by weight in the product of approximately 75%.
Claim 12
Dependent Claim
22 words
The porous hose of claim 11, with said smaller binder material amount of polyethylene, sulfur and oil being comprised substantially of polyethylene.
Claim 13
Dependent Claim
27 words
The porous hose of claim 12, with said percentages by weight of sulfur and oil comprising approximately equal percentages of sulfur and oil totaling approximately 1 percent.
Claim 14
Dependent Claim
26 words
The porous hose of claim 13, with said polyethylene having a density of approximately 0.946 and a melt point in the range of 0.22 to 0.55.
Claim 15
Dependent Claim
28 words
The porous hose of claim 14, with said hose comprising a heat fused extruded casing of said materials, the outer surface thereof having been rapidly chilled as extruded.
Claim 16
Dependent Claim
30 words
The porous hose of claim 15, with said laybrinth type channels being sized to substantially preclude seepage therethrough of water flowing through said hose at a predetermined normal flow pressure.
Claim 17
Dependent Claim
14 words
The porous hose of claim 16, with said oil comprising used vehicle engine oil.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-09-24 | 1983-03-26 | 1983-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-09-24 | 1987-03-26 | 1987-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-09-24 | 1991-03-26 | 1991-09-25 | $7700.00 | Window Closed / Lapsed |