US4767056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray guard
Assignee: Individual
•
Filing: 1987-04-20
•
Granted: 1988-08-30
•
Expires: 2007-04-20
Abstract
Abstract A spray guard for a paint spray gun is provided that will deliver a shroud of pressurized air about a paint spray issuing from the spray nozzle to eliminate over spray of the paint and create a smoother finish to surface sprayed. Modifications are provided that include a flexible deflector with a closure that mates with holes in the spray nozzle and also include removeable spray fittings for the nozzle.
Inventors
- 👤 Kris Demetrius
- 👤 George Spector
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:54
CPC Classifications
B; B05; B05B; B05B12/00; B05B12/16; B05B12/32; B05B12/36; B05B12/18; B05B7/00; B05B7/02; B05B7/08; B05B7/0807; B05B7/0861
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
202 words
A spray guard for a paint spray gun having an externally threaded spray nozzle, said spray guard comprising: (a) a tension washer received about the spray nozzle; (b) an adaptor being internally threaded to be received about the spray nozzle and detachably fixed thereto against said tension washer; (c) a funnel shaped nozzle integrally part of said adaptor, said funnel shaped nozzle having an annular air passage extending about the spray nozzle, an inlet port for delivering pressurized air into said air passage and a series of small holes spaced around outer edge of said funnel shaped nozzle for delivering a shroud of pressurized air about a paint spray issuing from the spray nozzle; (d) an adjustable flexible deflector slideable over said funnel shaped nozzle for controlling size of the shroud of pressurized air; (e) said funnel shaped nozzle having a plurailty of spaced apart external detents to receive said deflector in various positions thereon; and (f) an air closure on remote end of said deflector, said closure having a series of rearwardly extending small pins spaced around the remote and thereof to mate with said small holes in said funnel shaped nozzle when said deflector is at its most rearward position.
Claim 2
Dependent Claim
202 words
A spray guard for a paint spray gun having an externally threaded spray nozzle, said spray guard comprising: (a) a tension washer received about the spray nozzle; (b) an adaptor being internally threaded to be received about the spray nozzle and detachably fixed thereto against said tension washer; (c) a funnel shaped nozzle integrally part of said adaptor, said funnel shaped nozzle having an annular air passage extending about the spray nozzle, an inlet port for delivering pressurized air into said air passage and a series of small holes spaced around outer edge of said funnel shaped nozzle for delivering a shroud of pressurized air about a paint spray issuing from the spray nozzle; (d) an adjustable flexible deflector slideable over said funnel shaped nozzle for controlling size of the shroud of pressurized air; (e) said funnel shaped nozzle having a plurailty of spaced apart external detents to receive said deflector in various positions thereon; and (f) an air closure on remote end of said deflector, said closure having a series of rearwardly extending small pins spaced around the remote and thereof to mate with said small holes in said funnel shaped nozzle when said deflector is at its most rearward position.
Claim 3
Dependent Claim
188 words
A spray guard for a paint spray gun having an externally threaded spray nozzle, said spray guard comprising: (a) a plastic washer placed onto end of said spray nozzle; (b) a tip member having flat sides thereof; (c) an adapter being internally threaded to be received about the spray nozzle and detachably fixed thereto over said plastic washer and said tip member so that said flat sides of said tip member extend outwardly from said adapter; (d) a split ring rotatably fixed around outer end of said adapter; and (e) a funnel shaped nozzle received over said split ring on said adapter to rotate thereabout, when said adapter is fastened on the spray nozzle said tip member will be held upright and stationary thus holding said funnel shaped nozzle upright and stationary, said funnel shaped nozzle having an annular air passage extending about the spray nozzle, an inlet port for delivering pressurized air into said air passage and a series of small holes spaced around outer edge of said funnel shaped nozzle for delivering a shroud of pressurized air about a paint spray issuing from the spray nozzle.
Claim 4
Dependent Claim
188 words
A spray guard for a paint spray gun having an externally threaded spray nozzle, said spray guard comprising: (a) a plastic washer placed onto end of said spray nozzle; (b) a tip member having flat sides thereof; (c) an adapter being internally threaded to be received about the spray nozzle and detachably fixed thereto over said plastic washer and said tip member so that said flat sides of said tip member extend outwardly from said adapter; (d) a split ring rotatably fixed around outer end of said adapter; and (e) a funnel shaped nozzle received over said split ring on said adapter to rotate thereabout, when said adapter is fastened on the spray nozzle said tip member will be held upright and stationary thus holding said funnel shaped nozzle upright and stationary, said funnel shaped nozzle having an annular air passage extending about the spray nozzle, an inlet port for delivering pressurized air into said air passage and a series of small holes spaced around outer edge of said funnel shaped nozzle for delivering a shroud of pressurized air about a paint spray issuing from the spray nozzle.
Claim 5
Dependent Claim
83 words
A spray guard as recited in claim 2, further comprising: (a) a fine paint spray fitting to be threaded into said funnel shaped nozzle in front of the spray nozzle, said fitting having a tapered front end portion; and (b) said funnel shaped nozzle having a second series of small holes spaced within inner surface of said funnel shaped nozzle for delivering the shroud of pressurized air inwardly about a fine paint spray issuing from said tapered front end portion of said fitting.
Claim 6
Dependent Claim
55 words
A spray guard as recited in claim 3, further comprising a regular paint spray fitting to be threaded into said funnel shaped nozzle in front of the spray nozzle, said fitting having an annular flange to fit contour of said inner surface of said funnel shaped nozzle to block said second series of small holes.
References Cited (Backward Citations)
US1326483A
Cited
US1650686A
Cited
US2410532A
Cited
US2504216A
Cited
US2814530A
Cited
US3857511A
Cited
US4218019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-30 | 1992-02-29 | 1992-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-30 | 1996-02-29 | 1996-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-30 | 2000-02-29 | 2000-08-30 | $7700.00 | Window Closed / Lapsed |