US3823876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam dispersal nozzle
Assignee: Rockwood Systems Corp
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Filing: 1972-12-18
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Granted: 1974-07-16
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Expires: 1992-12-18
Abstract
Abstract A foam dispersal nozzle has a hood enclosure containing two perforated deflectors mounted therein. The deflectors are mounted on a pivot shaft in opposed relationship to each other. An actuator handle extends from the deflectors in pivoting relation about the pivot shaft. The opposed downstream ends of the deflectors have a series of teeth formed therein. The perforations in said deflectors are chamfered to a knife edge at least along the downstream portions thereof. The size of the opening formed between the toothed ends of the deflectors and the angle of attack formed between the deflectors and a fluid stream moving through the nozzle may be varied by operating the actuator handle to pivot the deflectors around the pivot shaft.
Inventors
- 👤 J Hardy
- 👤 A Stevens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:17
CPC Classifications
A; A62; A62C; A62C3/00; A62C3/02; A62C3/0207
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
125 words
A fluid dispersal nozzle comprising first and second deflectors journaled on pivot mounting means and positioned in opposed, spaced-apart relation to define between said deflectors a fluid flow path having a fluid inlet formed between the respective upstream portions of said deflectors and a fluid outlet formed between the respective downstream portions of said deflectors, means to rotate said deflectors about said pivot mounting means to change the size of said fluid outlet by adjusting the distance across said fluid flow path between said respective downstream portions, a plurality of apertures contained in said deflectors and, a plurality of teeth formed in said downstream portions of said deflectors, and a hood enclosure enclosing said deflectors and having a mouth opening aligned with said fluid outlet.
Claim 2
Dependent Claim
125 words
A fluid dispersal nozzle comprising first and second deflectors journaled on pivot mounting means and positioned in opposed, spaced-apart relation to define between said deflectors a fluid flow path having a fluid inlet formed between the respective upstream portions of said deflectors and a fluid outlet formed between the respective downstream portions of said deflectors, means to rotate said deflectors about said pivot mounting means to change the size of said fluid outlet by adjusting the distance across said fluid flow path between said respective downstream portions, a plurality of apertures contained in said deflectors and, a plurality of teeth formed in said downstream portions of said deflectors, and a hood enclosure enclosing said deflectors and having a mouth opening aligned with said fluid outlet.
Claim 3
Dependent Claim
33 words
The nozzle of claim 1 wherein said deflectors are positioned so that in a full closed position said downstream portions of said first and second deflectors are in contact one with the other.
Claim 4
Dependent Claim
141 words
A fluid dispersal nozzle comprising first and second deflectors journaled on pivot mounting means and positioned in opposed, spaced-apart relation to define between said deflectors a fluid flow path having a fluid inlet formed between the respective upstream portions of said deflectors and a fluid outlet formed between the respective downstream portions of said deflectors, means to rotate said deflectors about said pivot mounting means to change the size of said fluid outlet by adjusting the distance across said fluid flow path between said respective downstream portions, a plurality of apertures contained in said deflectors, at least the downstream portions of said apertures being chamfered to form a knife edge facing upstream, a plurality of teeth formed in said downstream portions of said deflectors, and a hood enclosure enclosing said deflectors and having a mouth opening aligned with said fluid outlet.
Claim 5
Dependent Claim
141 words
A fluid dispersal nozzle comprising first and second deflectors journaled on pivot mounting means and positioned in opposed, spaced-apart relation to define between said deflectors a fluid flow path having a fluid inlet formed between the respective upstream portions of said deflectors and a fluid outlet formed between the respective downstream portions of said deflectors, means to rotate said deflectors about said pivot mounting means to change the size of said fluid outlet by adjusting the distance across said fluid flow path between said respective downstream portions, a plurality of apertures contained in said deflectors, at least the downstream portions of said apertures being chamfered to form a knife edge facing upstream, a plurality of teeth formed in said downstream portions of said deflectors, and a hood enclosure enclosing said deflectors and having a mouth opening aligned with said fluid outlet.
Claim 6
Dependent Claim
182 words
A fluid dispersal nozzle comprising first and second deflectors journaled on pivot mounting means and positioned in opposed, spaced-apart relation to define between said deflectors a fluid flow path having a fluid inlet formed between the respective upstream portions of said deflectors and a fluid outlet formed between the respective downstream portions of said deflectors, means to rotate said deflectors about said pivot mounting means to change the size of said fluid outlet by adjusting the distance across said fluid flow path between said respective downstream portions, a plurality of apertures contained in said deflectors, a plurality of teeth formed in said downstream portions of said deflectors, a hood enclosure enclosing said deflectors and having a mouth opening aligned with said fluid outlet, and a mounting bracket to which said first and second deflectors are connected by said pivot mounting means, said mounting bracket having a collar portion adapted to receive one end of a foam fluid conduit in fluid sealing relationship with said mounting bracket, and a face portion adapted to have said hood enclosure mounted thereon in fluid sealing relationship.
Claim 7
Dependent Claim
182 words
A fluid dispersal nozzle comprising first and second deflectors journaled on pivot mounting means and positioned in opposed, spaced-apart relation to define between said deflectors a fluid flow path having a fluid inlet formed between the respective upstream portions of said deflectors and a fluid outlet formed between the respective downstream portions of said deflectors, means to rotate said deflectors about said pivot mounting means to change the size of said fluid outlet by adjusting the distance across said fluid flow path between said respective downstream portions, a plurality of apertures contained in said deflectors, a plurality of teeth formed in said downstream portions of said deflectors, a hood enclosure enclosing said deflectors and having a mouth opening aligned with said fluid outlet, and a mounting bracket to which said first and second deflectors are connected by said pivot mounting means, said mounting bracket having a collar portion adapted to receive one end of a foam fluid conduit in fluid sealing relationship with said mounting bracket, and a face portion adapted to have said hood enclosure mounted thereon in fluid sealing relationship.
Claim 8
Dependent Claim
150 words
A fluid dispersal nozzle comprising first and second deflectors journaled on pivot mounting means and positioned in opposed, spaced-apart relation to define between said deflectors a fluid flow path having a fluid inlet formed between the respective upstream portions of said deflectors and a fluid outlet formed between the respective downstream portions of said deflectors, means to rotate said deflectors about said pivot mounting means to change the size of said fluid outlet by adjusting the distance across said fluid flow path between said respective downstream portions, said means including an actuator handle connected to said deflectors and structurally associated therewith whereby movement of said handle rotates said deflectors about said pivot mounting means, a plurality of apertures contained in said deflectors, a plurality of teeth formed in said downstream portions of said deflectors, a hood enclosure enclosing said deflectors and having a mouth opening aligned with said fluid outlet.
Claim 9
Dependent Claim
150 words
A fluid dispersal nozzle comprising first and second deflectors journaled on pivot mounting means and positioned in opposed, spaced-apart relation to define between said deflectors a fluid flow path having a fluid inlet formed between the respective upstream portions of said deflectors and a fluid outlet formed between the respective downstream portions of said deflectors, means to rotate said deflectors about said pivot mounting means to change the size of said fluid outlet by adjusting the distance across said fluid flow path between said respective downstream portions, said means including an actuator handle connected to said deflectors and structurally associated therewith whereby movement of said handle rotates said deflectors about said pivot mounting means, a plurality of apertures contained in said deflectors, a plurality of teeth formed in said downstream portions of said deflectors, a hood enclosure enclosing said deflectors and having a mouth opening aligned with said fluid outlet.
Claim 10
Dependent Claim
35 words
The nozzle of claim 5 further including a remote control rod attached to said actuator handle whereby movement of said control rod moves said actuator handle to rotate said deflectors about said pivot mounting means.
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) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |