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US3923253A Expired / Lapsed US ⏱️ 0.0 years remaining

Spraying nozzle

Assignee: International Permalite Inc
•
Filing: 1974-05-21
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Granted: 1975-12-02
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Expires: 1994-05-21
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Abstract

Abstract A spray nozzle for e.g. urethane resins providing a fan-shaped spray pattern and method for the use thereof including fluid inlet means, fluid outlet means, a chamber for pressurizing the fluid and pressurizing gas inlet means tangential to the circular cross-section of the chamber.

Inventors

  • 👤 Sherman A Stewart

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 04:39
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/02; B05B7/10; B05B1/00; B05B1/34; B05B1/3405; B05B1/341; B05B1/3421; B05B1/3426; B05B7/04; B05B7/0408

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 85 words
A fluid spray nozzle comprising: a. spray fluid inlet means; b. pressurized gas inlet means; c. a chamber for receiving spray fluid from said spray fluid inlet means and pressurized gas from said pressurized gas inlet means; and d. fluid outlet spray means having an unimpeded open channel connected to said chamber and directed at an angle away from the chamber, said spray means including an outlet orifice having a circular opening at one end thereof and an ellipsoidal opening at the other end thereof.
Claim 2
Dependent Claim 85 words
A fluid spray nozzle comprising: a. spray fluid inlet means; b. pressurized gas inlet means; c. a chamber for receiving spray fluid from said spray fluid inlet means and pressurized gas from said pressurized gas inlet means; and d. fluid outlet spray means having an unimpeded open channel connected to said chamber and directed at an angle away from the chamber, said spray means including an outlet orifice having a circular opening at one end thereof and an ellipsoidal opening at the other end thereof.
Claim 3
Dependent Claim 26 words
A fluid spray nozzle, as set forth in claim 1, wherein said circular opening connects with said chamber and said ellipsoidal opening connects with the atmosphere.
Claim 4
Dependent Claim 28 words
A fluid spray nozzle, as set forth in claim 1, wherein said chamber is circular in cross-section and said gas inlet means is tangential to said circular cross-section.
Claim 5
Dependent Claim 84 words
A fluid spray nozzle comprising: a. spray fluid inlet means, b. pressurized gas inlet means, c. a chamber for receiving spray fluid from said spray fluid inlet means and pressurized gas from said pressurized gas inlet means, said chamber having walls defining a right circular cylinder, and d. fluid outlet spray means having an unimpeded open channel connected to said chamber and including a slot in said chamber walls lying in a plane which is perpendicular to the axis of said right circular cylinder.
Claim 6
Dependent Claim 84 words
A fluid spray nozzle comprising: a. spray fluid inlet means, b. pressurized gas inlet means, c. a chamber for receiving spray fluid from said spray fluid inlet means and pressurized gas from said pressurized gas inlet means, said chamber having walls defining a right circular cylinder, and d. fluid outlet spray means having an unimpeded open channel connected to said chamber and including a slot in said chamber walls lying in a plane which is perpendicular to the axis of said right circular cylinder.
Claim 7
Dependent Claim 21 words
A fluid spray nozzle as set forth in claim 4 wherein said slot extends over an arc between 90* and 150*.
Claim 8
Dependent Claim 80 words
A fluid spray nozzle comprising: a. spray fluid inlet means, b. pressurized gas inlet means, c. a chamber for receiving spray fluid from said spray fluid inlet means and pressurized gas from said pressurised gas inlet means, d. a rotatable mixing impeller in said chamber and positioned in the path of said spray fluid for mixing said spray fluid with said pressurized gas, and e. fluid outlet sPray means connected to said chamber for dispersing said mixture to the atmosphere.
Claim 9
Dependent Claim 80 words
A fluid spray nozzle comprising: a. spray fluid inlet means, b. pressurized gas inlet means, c. a chamber for receiving spray fluid from said spray fluid inlet means and pressurized gas from said pressurised gas inlet means, d. a rotatable mixing impeller in said chamber and positioned in the path of said spray fluid for mixing said spray fluid with said pressurized gas, and e. fluid outlet sPray means connected to said chamber for dispersing said mixture to the atmosphere.
Claim 10
Dependent Claim 40 words
A fluid spray nozzle, as set forth in claim 6, wherein said chamber is circular in cross-section and said gas inlet means is tangential to said circular cross-section and provides gas flow in the direction of rotation of said impeller.
Claim 11
Dependent Claim 34 words
The nozzle of claim 1 wherein the walls of said outlet orifice are at an angle of about 15* from the axis of a cylinder described by said circular beginning of said outlet orifice.
Claim 12
Dependent Claim 30 words
The nozzle of claim 3 wherein the diameter of the cross-section of said chamber adjacent said tangential inlet means is greater than the diameter of the remainder of said chamber.
Claim 13
Dependent Claim 61 words
In a fluid spray nozzle including spray fluid inlet means, a chamber, fluid outlet spray means, pressuring gas means, a rotatable impeller for said spray fluid and pressurizing gas inlet means providing gas flow in the direction of rotation of said impeller, the improvement wherein said chamber is circular in cross-section and said inlet means is tangential to the circular cross-section.
Claim 14
Dependent Claim 61 words
In a fluid spray nozzle including spray fluid inlet means, a chamber, fluid outlet spray means, pressuring gas means, a rotatable impeller for said spray fluid and pressurizing gas inlet means providing gas flow in the direction of rotation of said impeller, the improvement wherein said chamber is circular in cross-section and said inlet means is tangential to the circular cross-section.

References Cited (Backward Citations)

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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) 1978-12-01 1979-06-02 1979-12-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-12-01 1983-06-02 1983-12-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-12-01 1987-06-02 1987-12-02 $7700.00 Window Closed / Lapsed

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