US3604719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Towable liquids storage tank assembly
Assignee: Individual
•
Filing: 1970-01-26
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Granted: 1971-09-14
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Expires: 1990-01-26
Abstract
Abstract This invention provides a towable liquids storage tank assembly which is especially adaptable for the transporting of agricultural liquid chemicals including fertilizers and pesticides. Primary portions of the towable tank assembly include an elongate thin-walled resinous storage tank, an underlying separable tublike saddle therefor, and a rollably towable trailerlike support means for the saddled tank. The tublike saddle is preferably of a resinous construction molded by the novel method herein i.e. against the lower external surface areas of the elongate resinous storage tank.
Inventors
- 👤 Raymond W Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:11
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/22; B60P3/2205; B60P3/2215
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
310 words
A towable liquids storage tank assembly adapted to be hitched in trailerlike fashion to a drayage means so as to be rollably towable along the earth''s surface, said towable liquids storage tank assembly comprising: An elongate hollow thin-walled polyolefin resinous storage tank having a finite given length along a substantially horizontal tank axis, said given length defining two ends for the tank, said tank having an elongate lower extremity, the elongate wall portions of the tank annularly surrounding the preponderant length of said tank axis, said hollow tank along the said tank axis preponderant length being of substantially regular vertical cross-sectional shape including a regular wall thickness for the annular wall portions, the interior vertical height of the tank exceeding the polyolefin regular wall thickness by a factor of at least 50 and the tank axis preponderant length exceeding the said polyolefin wall thickness by a factor of at least 100; B. an elongate tublike saddle nonadherently extending along the lower external side of the polyolefin tank including along the tank elongate lower extremity, the saddle having a substantially horizontal upper end positioned nearer to the tank axis than to the tank lower elongate extremity, said saddle having a shell-like thin wall of substantially regular thickness, the saddle structural material being nonadherent to the polyolefin resinous structural material of the tank; and C. a rollably towable trailerlike support means disposed along a substantially horizontal longitudinal axis, the upper side of said rollable support means including a plurality of spacedapart substantially parallel coelevational rails, the distance between at least one consecutive pair of parallel rails bearing a ratio of at least one-fifth with respect to the tank finite given length, the said tublike saddle resting across the plurality of substantially parallel rails, and means for removably attaching the elongate tank and the underlying supporting saddle to the towable trailerlike supporting means.
Claim 2
Dependent Claim
310 words
A towable liquids storage tank assembly adapted to be hitched in trailerlike fashion to a drayage means so as to be rollably towable along the earth''s surface, said towable liquids storage tank assembly comprising: An elongate hollow thin-walled polyolefin resinous storage tank having a finite given length along a substantially horizontal tank axis, said given length defining two ends for the tank, said tank having an elongate lower extremity, the elongate wall portions of the tank annularly surrounding the preponderant length of said tank axis, said hollow tank along the said tank axis preponderant length being of substantially regular vertical cross-sectional shape including a regular wall thickness for the annular wall portions, the interior vertical height of the tank exceeding the polyolefin regular wall thickness by a factor of at least 50 and the tank axis preponderant length exceeding the said polyolefin wall thickness by a factor of at least 100; B. an elongate tublike saddle nonadherently extending along the lower external side of the polyolefin tank including along the tank elongate lower extremity, the saddle having a substantially horizontal upper end positioned nearer to the tank axis than to the tank lower elongate extremity, said saddle having a shell-like thin wall of substantially regular thickness, the saddle structural material being nonadherent to the polyolefin resinous structural material of the tank; and C. a rollably towable trailerlike support means disposed along a substantially horizontal longitudinal axis, the upper side of said rollable support means including a plurality of spacedapart substantially parallel coelevational rails, the distance between at least one consecutive pair of parallel rails bearing a ratio of at least one-fifth with respect to the tank finite given length, the said tublike saddle resting across the plurality of substantially parallel rails, and means for removably attaching the elongate tank and the underlying supporting saddle to the towable trailerlike supporting means.
Claim 3
Dependent Claim
100 words
The towable liquids storage tank assembly of claim 1 wherein the the thin-walled storage tank is substantially wholly provided of a polyolefin resinous structural material; wherein the regular wall thickness of the wall portions of the elongate tank is less than about three-eighth inch; wherein said elongate tank comprises an elongate upper segment and an elongate lower segment, both said segments having said finite given length and intersecting as an outward tank protuberance positioned substantially at the horizontal plane of the tank-axis; and wherein the major gravimetric proportion of the thin-walled elongate tublike saddle comprises a nonpolyolefin resinous structural material.
Claim 4
Dependent Claim
85 words
The towable liquids storage tank assembly of claim 2 wherein the thin-walled storage tank is substantially wholly provided of polyethylene; wherein the saddle horizoNtal upper end is of substantially coelevation with the tank axis immediately below the tank outward protuberance; wherein the structural material of the saddle comprises a structurally continuous polyester matrix internally reinforced with particulate fibrous material; and wherein the regular wall thickness of said polyester saddle bears a ratio to the tank elongate wall-thickness of within the range of one-quarter to one.
Claim 5
Dependent Claim
53 words
The assembly of claim 3 wherein the tublike saddle is internally provided with a self-sustaining clothlike reinforcing layer located nearer to the tank and to the saddle interior surface than to the saddle exterior surface; and wherein girth straps are employed for removably attaching the tank and saddle to the trailerlike supporting means.
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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) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |