US4256241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pesticide duster
Assignee: Individual
•
Filing: 1979-02-01
•
Granted: 1981-03-17
•
Expires: 1999-02-01
Abstract
Abstract A fluid-solid mixing and dispensing apparatus primarily intended for use in the application of pesticide dust. The apparatus comprises a blower and a removable, disposable pesticide dust cartridge attachable to the blower in fluid-communicating relation to at least a portion of the blower's fluid flow stream. A volume control is provided so as to regulate the quantity of fluid flowing through the cartridge, thereby regulating the quantity of pesticide dust actually dispensed.
Inventors
- 👤 Robert S. Mesic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:21
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/14; B05B7/1404; B05B7/1413; A; A01; A01M; A01M9/00; A01M9/0007; A01M9/0038; A01M9/0046
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
202 words
A fluid-solid mixing and dispensing apparatus of the type primarily intended for use in applying pesticides by dusting, said apparatus comprising, in combination: fluid blower means whereby a main flow of fluid is provided; cartridge receiver means formed on said blower means in fluid-communicating relation to a portion of the fluid delivered by said blower means, said cartridge receiver means comprising a cartridge holder fixedly attached to said blower means, one end of said holder comprising fluid pickup means comprising a pickup conduit, one end of said pickup conduit comprising a pickup chute disposed in fluid-receiving relation to said portion of said fluid, and adjustable volume control means operatively disposed in said pickup conduit downstream of said pickup chute whereby the volume of said portion of said fluid may be adjusted within predetermined parameters; the other end of said holder including a delivery conduit delivering to the main flow of fluid and cartridge means removably attachable to said receiver means, said cartridge means comprising a solid material placed therein, whereby said portion of said fluid will pass through said cartridge means so as to mix and dispense said solid material with the main flow of the fluid exhaust from said blower means.
Claim 2
Dependent Claim
202 words
A fluid-solid mixing and dispensing apparatus of the type primarily intended for use in applying pesticides by dusting, said apparatus comprising, in combination: fluid blower means whereby a main flow of fluid is provided; cartridge receiver means formed on said blower means in fluid-communicating relation to a portion of the fluid delivered by said blower means, said cartridge receiver means comprising a cartridge holder fixedly attached to said blower means, one end of said holder comprising fluid pickup means comprising a pickup conduit, one end of said pickup conduit comprising a pickup chute disposed in fluid-receiving relation to said portion of said fluid, and adjustable volume control means operatively disposed in said pickup conduit downstream of said pickup chute whereby the volume of said portion of said fluid may be adjusted within predetermined parameters; the other end of said holder including a delivery conduit delivering to the main flow of fluid and cartridge means removably attachable to said receiver means, said cartridge means comprising a solid material placed therein, whereby said portion of said fluid will pass through said cartridge means so as to mix and dispense said solid material with the main flow of the fluid exhaust from said blower means.
Claim 3
Dependent Claim
36 words
A fluid-solid mixing and dispensing apparatus as in claim 1 wherein the other end of said pickup conduit comprises a first piercing member for delivering said portion of said fluid to said cartridge means attached thereto.
Claim 4
Dependent Claim
38 words
A fluid-solid mixing and dispensing apparatus as in claim 1 wherein the other end of said holder comprises removable closure means disposed in interconnecting, fluid-communicating relation between said cartridge means placed within said holder and said fluid exhaust.
Claim 5
Dependent Claim
80 words
A fluid-solid mixing and dispensing apparatus as in claim 1 wherein said closure means comprises a fluid-solid delivery conduit, one end of said delivery conduit comprising a second piercing member for receiving said portion of said fluid including said solid material mixed thereinto, and the other end of said delivery conduit being disposed in fluid-communicating relation to said main flow downstream of said fluid pickup means, whereby said solid material is dispensed in said fluid exhaust from said blower means.
Claim 6
Dependent Claim
41 words
A fluid-solid mixing and dispensing apparatus as in claim 4 wherein said one end of said delivery conduit further comprises sealing means movably disposed around said second piercing member to abuttingly engage said cartridge means operatively disposed within said cartridge holder.
Claim 7
Dependent Claim
31 words
A fluid-solid mixing and dispensing apparatus as in claim 1 wherein said cartridge means further comprises oppositely disposed end portions, each of said end portions being formed of a frangible material.
Claim 8
Dependent Claim
55 words
A fluid-solid mixing and dispensing apparatus as in claim 6 wherein said cartridge means further comprises a pair of removable protector caps, one of said caps being disposed on each of said end portions to protect said frangible material, said protector caps being removed prior to operatively attaching said cartridge means to said receiver means.
Claim 9
Dependent Claim
31 words
A fluid-solid mixing and dispensing apparatus as in claim 6 wherein said cartridge means further comprises an axially extending annular lip formed around the perimeter of each of said end portions.
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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) | 1984-03-16 | 1984-09-15 | 1985-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-16 | 1988-09-15 | 1989-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-16 | 1992-09-15 | 1993-03-17 | $7700.00 | Window Closed / Lapsed |