Patent US3717306A successfully refreshed from Google Patents.
US3717306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nozzle for spraying foaming materials
Assignee: HUSHON R
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Filing: 1971-03-10
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Granted: 1973-02-20
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Expires: 1991-03-10
Abstract
Abstract The specification discloses a spray nozzle assembly for simultaneously spraying two materials, such as the material and catalist of urethane foam. The nozzle assembly is made up of two concentric spray nozzle members defining a central path and a cylindrical path concentric to the central path. The nozzles are so arranged that the material is given a turbulent motion as it emerges from the nozzle thereby causing a mixing of the two materials. The assembly can be used without a pump connected to a source of pressure.
Inventors
- 👤 J Hushon
- 👤 S Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:14
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/02; B05B7/10; B05B7/04; B05B7/0408; B29; B29B; B29B7/00; B29B7/74; B29B7/7457
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
390 words
A nozzle structure for spraying urethane foam comprising a central cylindrical passage in said nozzle structure, said passage extending from the central rear of said nozzle structure toward the front thereof, means for connecting said central passage to a source of first material, a central cylindrical inner member, an intermediate hollow cylindrical member and an outer hollow cylindrical member, said central cylindrical member and said intermediate cylindrical member and said outer hollow member being disposed concentric to each other, said central cylindrical member and said intermediate cylindrical member defining a first annular passage, said outer hollow member and said intermediate cylindrical member defining a second annular passage, said intermediate hollow cylindrical member terminating in an end having an inside surface defining a frustum of a cone and an outside surface defining a frustum of a cone, a tubular member fixed to the outside of said intermediate hollow cylindrical member end, said outer cylindrical member having an end with an inside surface defining the frustum of a cone, a round opening in the center of said end of said outer hollow cylindrical member, said tubular member extending through said opening in said end of said outer cylindrical member defining an annular outlet space between said outer cylindrical member end and the outside of said tubular member, the outside of the end of said intermediate cylindrical member engaging the inside surface of said outside cylindrical member end, said central passage communicating with said second annular cylindrical passage, said first annular cylindrical passage communicating with a central cylindrical discharge passage by way of spaced first passages formed in the end of said central cylindrical member, said spaced passages being disposed tangentially to said central cylindrical passage whereby fluid in said spaced passages is given a swirling motion, and said second annular passage having means for connecting it to a source of fluid material, said second annular passage being adapted to be connected to a second source of material to be mixed with said first material, a cylindrical outlet passage, said cylindrical outlet being aligned with the inside of said tubular member and the said annular outlet, spaced second passages communicating between said second annular passage and said annular outlets, said spaced second passages being tangential to said outlet passage whereby said second material is given a turbulent flow relative to said first material.
Claim 2
Dependent Claim
390 words
A nozzle structure for spraying urethane foam comprising a central cylindrical passage in said nozzle structure, said passage extending from the central rear of said nozzle structure toward the front thereof, means for connecting said central passage to a source of first material, a central cylindrical inner member, an intermediate hollow cylindrical member and an outer hollow cylindrical member, said central cylindrical member and said intermediate cylindrical member and said outer hollow member being disposed concentric to each other, said central cylindrical member and said intermediate cylindrical member defining a first annular passage, said outer hollow member and said intermediate cylindrical member defining a second annular passage, said intermediate hollow cylindrical member terminating in an end having an inside surface defining a frustum of a cone and an outside surface defining a frustum of a cone, a tubular member fixed to the outside of said intermediate hollow cylindrical member end, said outer cylindrical member having an end with an inside surface defining the frustum of a cone, a round opening in the center of said end of said outer hollow cylindrical member, said tubular member extending through said opening in said end of said outer cylindrical member defining an annular outlet space between said outer cylindrical member end and the outside of said tubular member, the outside of the end of said intermediate cylindrical member engaging the inside surface of said outside cylindrical member end, said central passage communicating with said second annular cylindrical passage, said first annular cylindrical passage communicating with a central cylindrical discharge passage by way of spaced first passages formed in the end of said central cylindrical member, said spaced passages being disposed tangentially to said central cylindrical passage whereby fluid in said spaced passages is given a swirling motion, and said second annular passage having means for connecting it to a source of fluid material, said second annular passage being adapted to be connected to a second source of material to be mixed with said first material, a cylindrical outlet passage, said cylindrical outlet being aligned with the inside of said tubular member and the said annular outlet, spaced second passages communicating between said second annular passage and said annular outlets, said spaced second passages being tangential to said outlet passage whereby said second material is given a turbulent flow relative to said first material.
Claim 3
Dependent Claim
390 words
A nozzle structure for spraying urethane foam comprising a central cylindrical passage in said nozzle structure, said passage extending from the central rear of said nozzle structure toward the front thereof, means for connecting said central passage to a source of first material, a central cylindrical inner member, an intermediate hollow cylindrical member and an outer hollow cylindrical member, said central cylindrical member and said intermediate cylindrical member and said outer hollow member being disposed concentric to each other, said central cylindrical member and said intermediate cylindrical member defining a first annular passage, said outer hollow member and said intermediate cylindrical member defining a second annular passage, said intermediate hollow cylindrical member terminating in an end having an inside surface defining a frustum of a cone and an outside surface defining a frustum of a cone, a tubular member fixed to the outside of said intermediate hollow cylindrical member end, said outer cylindrical member having an end with an inside surface defining the frustum of a cone, a round opening in the center of said end of said outer hollow cylindrical member, said tubular member extending through said opening in said end of said outer cylindrical member defining an annular outlet space between said outer cylindrical member end and the outside of said tubular member, the outside of the end of said intermediate cylindrical member engaging the inside surface of said outside cylindrical member end, said central passage communicating with said second annular cylindrical passage, said first annular cylindrical passage communicating with a central cylindrical discharge passage by way of spaced first passages formed in the end of said central cylindrical member, said spaced passages being disposed tangentially to said central cylindrical passage whereby fluid in said spaced passages is given a swirling motion, and said second annular passage having means for connecting it to a source of fluid material, said second annular passage being adapted to be connected to a second source of material to be mixed with said first material, a cylindrical outlet passage, said cylindrical outlet being aligned with the inside of said tubular member and the said annular outlet, spaced second passages communicating between said second annular passage and said annular outlets, said spaced second passages being tangential to said outlet passage whereby said second material is given a turbulent flow relative to said first material.
Claim 4
Dependent Claim
390 words
A nozzle structure for spraying urethane foam comprising a central cylindrical passage in said nozzle structure, said passage extending from the central rear of said nozzle structure toward the front thereof, means for connecting said central passage to a source of first material, a central cylindrical inner member, an intermediate hollow cylindrical member and an outer hollow cylindrical member, said central cylindrical member and said intermediate cylindrical member and said outer hollow member being disposed concentric to each other, said central cylindrical member and said intermediate cylindrical member defining a first annular passage, said outer hollow member and said intermediate cylindrical member defining a second annular passage, said intermediate hollow cylindrical member terminating in an end having an inside surface defining a frustum of a cone and an outside surface defining a frustum of a cone, a tubular member fixed to the outside of said intermediate hollow cylindrical member end, said outer cylindrical member having an end with an inside surface defining the frustum of a cone, a round opening in the center of said end of said outer hollow cylindrical member, said tubular member extending through said opening in said end of said outer cylindrical member defining an annular outlet space between said outer cylindrical member end and the outside of said tubular member, the outside of the end of said intermediate cylindrical member engaging the inside surface of said outside cylindrical member end, said central passage communicating with said second annular cylindrical passage, said first annular cylindrical passage communicating with a central cylindrical discharge passage by way of spaced first passages formed in the end of said central cylindrical member, said spaced passages being disposed tangentially to said central cylindrical passage whereby fluid in said spaced passages is given a swirling motion, and said second annular passage having means for connecting it to a source of fluid material, said second annular passage being adapted to be connected to a second source of material to be mixed with said first material, a cylindrical outlet passage, said cylindrical outlet being aligned with the inside of said tubular member and the said annular outlet, spaced second passages communicating between said second annular passage and said annular outlets, said spaced second passages being tangential to said outlet passage whereby said second material is given a turbulent flow relative to said first material.
Claim 5
Dependent Claim
54 words
The nozzle structure recited in cLaim 1 wherein when said means for giving said first material and said second material swirling motions comprises a central path and an inner member, slots in said outer member disposed tangentially to said central path diverting said second material from said outer annular path toward said central path.
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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |