US4628960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprayer sight gauge
Assignee: DURAND-WAYLAND MACHINERY Inc
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Filing: 1984-09-10
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Granted: 1986-12-16
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Expires: 2004-09-10
Abstract
Abstract A sight gauge for a towed sprayer having a channel formed in a shroud, which is inclined more from the vertical in its upper portion, with a plastic tube mounted in the channel. A visual indicator is trapped within the tube to indicate liquid level in the sprayer tank.
Inventors
- 👤 Joseph W. Brickell
- 👤 Edward A. Bellandi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:50
CPC Classifications
A; A01; A01M; A01M7/00; A01M7/0082; A01M7/0085; G; G01; G01F; G01F23/00; G01F23/02; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6855; Y10T137/6914; Y10T137/8158; Y10T137/8342; Y10T137/8359
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
99 words
A sight gauge for use with a sprayer having a tank comprising: a shroud covering the forward end of said tank and formed complementary to and contiguous with said tank; said shroud having a rearwardly angled flat front surface and an upper adjoining conical section; a continuous vertical channel formed in said surface and said section; a clear plastic tube secured in said channel; said channel having a depth at least equal to the outer diameter of said tube; a flotable indicator freely moveable within said tube; and means communicating the lower end of said tube with said tank.
Claim 2
Dependent Claim
99 words
A sight gauge for use with a sprayer having a tank comprising: a shroud covering the forward end of said tank and formed complementary to and contiguous with said tank; said shroud having a rearwardly angled flat front surface and an upper adjoining conical section; a continuous vertical channel formed in said surface and said section; a clear plastic tube secured in said channel; said channel having a depth at least equal to the outer diameter of said tube; a flotable indicator freely moveable within said tube; and means communicating the lower end of said tube with said tank.
Claim 3
Dependent Claim
34 words
The invention according to claim 1, wherein said indicator comprises: a ball having a diameter less than the inner diameter of said tube and having a density less than water trapped within said tube.
Claim 4
Dependent Claim
13 words
The invention according to claim 2 wherein said ball is composed of polypropylene.
Claim 5
Dependent Claim
93 words
In a sprayer having a liquid-holding tank mounted on a frame and a shroud hinged to said frame and contiguous with said tank, the improvement comprising: a channel formed in the front of said shroud with an upper portion being inclined and angled more from vertical than the lower portion; a clear plastic tube secured in said channel; said channel having a depth at least equal to the outer diameter of said tube; a floatable indicator freely moveable within said tube; and means communicating the lower end of said tube with said tank.
Claim 6
Dependent Claim
93 words
In a sprayer having a liquid-holding tank mounted on a frame and a shroud hinged to said frame and contiguous with said tank, the improvement comprising: a channel formed in the front of said shroud with an upper portion being inclined and angled more from vertical than the lower portion; a clear plastic tube secured in said channel; said channel having a depth at least equal to the outer diameter of said tube; a floatable indicator freely moveable within said tube; and means communicating the lower end of said tube with said tank.
Claim 7
Dependent Claim
27 words
The invention according to claim 4, wherein said indicator comprises: a ball having a diameter less than the inner diameter of said tube trapped within said tube.
Claim 8
Dependent Claim
13 words
The invention according to claim 5 wherein said ball is composed of polypropylene.
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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) | 1989-12-15 | 1990-06-16 | 1990-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-15 | 1994-06-16 | 1994-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-15 | 1998-06-16 | 1998-12-16 | $7700.00 | Window Closed / Lapsed |