US3647142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air gun having a safety nozzle
Assignee: SCHRADER BELLOWS Inc A CORP OF DE
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Filing: 1970-10-22
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Granted: 1972-03-07
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Expires: 1990-10-22
Abstract
Abstract The safety nozzle on this air gun has rearwardly directed bores having oddly-shaped rearward openings to make plugging difficult. Radial holes in a forward sleeve and a diametrically disposed pin reduce dynamic pressures and noise levels.
Inventors
- 👤 Edward H Drude
- 👤 Bennie Franklin Mangum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:59
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/005; Y; Y10; Y10S; Y10S239/00; Y10S239/22
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
152 words
A safety device comprising an air gun having a valve disposed transverse to the passage of air through the gun and having a nozzle mounting about the air outlet, a safety nozzle comprising a tubular body having at one end attachment means complementing the nozzle mounting and attached thereto, the body being formed with an enlarged head on the other end and having a delivery passage extending on the axis of the body from one end to the other and a plurality of circularly arranged bores extending longitudinally of the head and disposed about the passage and extending backward to the rear face of the head, a tubular sleeve having one end snugly embracing and attached to and extending outward from the head, the sleeve having a plurality of openings therethrough adjacent the head, and a pin disposed diametrically across the sleeve to partly guard the head end of the delivery passage.
Claim 2
Dependent Claim
152 words
A safety device comprising an air gun having a valve disposed transverse to the passage of air through the gun and having a nozzle mounting about the air outlet, a safety nozzle comprising a tubular body having at one end attachment means complementing the nozzle mounting and attached thereto, the body being formed with an enlarged head on the other end and having a delivery passage extending on the axis of the body from one end to the other and a plurality of circularly arranged bores extending longitudinally of the head and disposed about the passage and extending backward to the rear face of the head, a tubular sleeve having one end snugly embracing and attached to and extending outward from the head, the sleeve having a plurality of openings therethrough adjacent the head, and a pin disposed diametrically across the sleeve to partly guard the head end of the delivery passage.
Claim 3
Dependent Claim
50 words
A safety device as described in claim 1 wherein the bores are uniform and larger in diameter than the radial enlargement of the head from the adjacent part of the body and portions of the bores extend longitudinally into the adjacent part thereby presenting holes which are difficult to plug.
Claim 4
Dependent Claim
134 words
A safety device comprising an air gun having a valve and having a nozzle mounting having the air outlet, a safety nozzle comprising a tubular body having at one end attachment means complementing the nozzle mounting and attached thereto, the body being formed with an enlarged head on the other end and having a delivery passage extending on the axis of the body from one end to the other and a plurality of circularly arranged bores extending longitudinally of the head and disposed about the passage and extending backward to the rear face of the head and continuing as channels in the portion of the body behind the head, a tubular sleeve having one end secured about and extending outward from the head, the sleeve having a plurality of openings therethrough adjacent the head.
Claim 5
Dependent Claim
134 words
A safety device comprising an air gun having a valve and having a nozzle mounting having the air outlet, a safety nozzle comprising a tubular body having at one end attachment means complementing the nozzle mounting and attached thereto, the body being formed with an enlarged head on the other end and having a delivery passage extending on the axis of the body from one end to the other and a plurality of circularly arranged bores extending longitudinally of the head and disposed about the passage and extending backward to the rear face of the head and continuing as channels in the portion of the body behind the head, a tubular sleeve having one end secured about and extending outward from the head, the sleeve having a plurality of openings therethrough adjacent the head.
Claim 6
Dependent Claim
26 words
A device as described in claim 3 wherein a pin is disposed diametrically across the sleeve to partly guard the head end of the delivery passage.
References Cited (Backward Citations)
US2001739A
Cited
US2645528A
Cited
US3260465A
Cited
US3263934A
Cited
US3363839A
Cited
US3599876A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |