Patent US3856274A successfully refreshed from Google Patents.
US3856274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage tank
Assignee: Individual
•
Filing: 1972-12-15
•
Granted: 1974-12-24
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Expires: 1992-12-15
Abstract
Abstract Spray equipment of lightweight primarily adapted for mobile installation and including means for mixing spray solution during spraying and in response to flow of water into a spray tank. The equipment features a lightweight spray tank, mixing device, and novel hose reel features.
Inventors
- 👤 J Stevenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:39
CPC Classifications
A; A01; A01M; A01M7/00; A01M7/0082; A01M7/0085; A01M7/0089; A01M7/0092; B; B65; B65H; B65H75/00; B65H75/02; B65H75/34; B65H75/38; B65H75/44; B65H75/4478; B65H2701/00; B65H2701/30; B65H2701/33; Y; Y10; Y10S; Y10S220/00; Y10S220/25
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
119 words
A lightweight storage tank applicable for use on a mobile vehicle, comprising a pair of opposing side walls, each comprising a unitary substantially rectangular piece of sheet material, and a one piece bottom and end walls of sheet material disposed between said side walls with said end walls, at their upper edges, terminating in substantially the plane of the upper edges of said side walls, and with said bottom above the lower edges of said side walls, whereby those portions of said sheet material side walls below said bottom constitute legs for said tank, said legs being arced to provide resilient support for said tank and avoid fatiguing of said sheet material and possible resulting cracking of said legs.
Claim 2
Dependent Claim
119 words
A lightweight storage tank applicable for use on a mobile vehicle, comprising a pair of opposing side walls, each comprising a unitary substantially rectangular piece of sheet material, and a one piece bottom and end walls of sheet material disposed between said side walls with said end walls, at their upper edges, terminating in substantially the plane of the upper edges of said side walls, and with said bottom above the lower edges of said side walls, whereby those portions of said sheet material side walls below said bottom constitute legs for said tank, said legs being arced to provide resilient support for said tank and avoid fatiguing of said sheet material and possible resulting cracking of said legs.
Claim 3
Dependent Claim
49 words
A lightweight storage tank in accordance with claim 1, characterized by said floor sloping from each end wall downwardly to a low point to form a trough, a shaft journalled in a side wall above said low point, and a stirring wheel mounted on said shaft in said trough.
Claim 4
Dependent Claim
48 words
A lightweight storage tank in accordance with claim 1, characterized by the upper ends of said side walls and end walls being flanged to provide support flanges for a cover, a cover of sheet material for said tank, and means for removably fastening said cover to said flanges.
Claim 5
Dependent Claim
28 words
A lightweight storage tank in accordance with claim 2, characterized by an overflow line extending from a wall of said tank in proximity to the upper edge thereof.
Claim 6
Dependent Claim
48 words
A lightweight storage tank in accordance with claim 4, characterized by the upper ends of said side walls and end walls being flanged to provide support flanges for a cover, a cover of sheet material for said tank, and means for removably fastening said cover to said flanges.
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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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |