Patent US3603506A successfully refreshed from Google Patents.
US3603506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal chemical delivery system
Assignee: Individual
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Filing: 1969-05-02
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Granted: 1971-09-07
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Expires: 1989-05-02
Abstract
Abstract A system is disclosed for dispensing of chemicals from an airplane while in flight to a predetermined area at ground level. The material to be dispensed is stored in a collapsible or deflatable storage means removably positioned within the load space of an airplane. A suitable pumping means may be connected to the storage means and communicates with a spray nozzle assembly detachably affixed to the wing or tail assembly of the airplane for distributing the airborne material over the predetermined ground area.
Inventors
- 👤 Charles H Hubbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:44
CPC Classifications
B; B64; B64D; B64D1/00; B64D1/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
149 words
A method of converting a cargo-type aircraft to dispense chemicals by spraying from a spray boom and aerially dispensing of said chemicals comprising the steps of attaching a spray boom to the exterior portion of an aircraft, loading a collapsible tank for said chemicals into the load space of said aircraft, said tank being deflated during the loading operation and conforming to said load space when in position therein, inflating said deflated tank by introducing a chemical material therein, interconnecting said tank and said spray boom to allow delivery of said chemicals from said tank to said boom, causing said aircraft to become airborne and positioned over a ground target area, providing a pressure differential between said tank and said spray boom to draw the chemicals therefrom and collapse said tank while airborne, and ejecting said chemicals from said spray boom to dispense the chemicals over the target area.
Claim 2
Independent Claim
149 words
A method of converting a cargo-type aircraft to dispense chemicals by spraying from a spray boom and aerially dispensing of said chemicals comprising the steps of attaching a spray boom to the exterior portion of an aircraft, loading a collapsible tank for said chemicals into the load space of said aircraft, said tank being deflated during the loading operation and conforming to said load space when in position therein, inflating said deflated tank by introducing a chemical material therein, interconnecting said tank and said spray boom to allow delivery of said chemicals from said tank to said boom, causing said aircraft to become airborne and positioned over a ground target area, providing a pressure differential between said tank and said spray boom to draw the chemicals therefrom and collapse said tank while airborne, and ejecting said chemicals from said spray boom to dispense the chemicals over the target area.
Claim 3
Dependent Claim
29 words
The method of claim 1, wherein the loading operation is performed by passing the deflated tank through an existing opening in said aircraft smaller than said tank when inflated.
Claim 4
Dependent Claim
22 words
The method of claim 1, wherein said interconnection is accomplished by running a flexible conduit through an existing opening in said aircraft.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-06 | 1975-03-08 | 1975-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-06 | 1979-03-08 | 1979-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-06 | 1983-03-08 | 1983-09-07 | $7700.00 | Window Closed / Lapsed |