US3870281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compressed air vibrator
Assignee: Findeva AG
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Filing: 1972-11-02
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Granted: 1975-03-11
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Expires: 1992-11-02
Abstract
Abstract In a compressed air vibrator having a cylindrically shaped casing each end of the casing is closed by a plastic cover. The plastic covers each have a frusto-conically shaped circumferential edge with a resilient lip formed in the circumferential edge for engagement in sealing contact with a portion of the surface of a groove formed in the interior surface of the casing adjacent its end.
Inventors
- 👤 Willy Fink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:36
CPC Classifications
B; B06; B06B; B06B1/00; B06B1/18; B06B1/186
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
223 words
A compressed air vibrator comprising a cylindrical casing open at its opposite ends, a cover for each of the opposite ends of said casing for forming closures therefor, wherein the improvement comprises that said casing has a circumferentially extending groove in its inner surface adjacent each of its open ends, each said cover is formed of a plastic material and has a circumferentially Extending edge which fits into the groove in said casing, the circumferentially extending edge of each said cover has a tapered configuration converging inwardly toward the axis of said casing in the direction facing toward the opposite end of said casing, a resilient lip formed around the circumferential edge of each said cover on the outer surface thereof with said lip fitted into said groove and having a portion of its surface bearing in sealed engagement against a corresponding wall surface within said groove, an eccentric mass positioned within said casing and movable therein under the influence of compressed air, said grooves of said casing being formed with at least the surface thereof adjacent the end of said casing extending perpendicularly to the axis of said casing, and the portion of said lip of said cover bearing in sealed engagement against a corresponding wall surface of said groove being in bearing contact with said perpendicularly extending surface of said groove.
Claim 2
Dependent Claim
223 words
A compressed air vibrator comprising a cylindrical casing open at its opposite ends, a cover for each of the opposite ends of said casing for forming closures therefor, wherein the improvement comprises that said casing has a circumferentially extending groove in its inner surface adjacent each of its open ends, each said cover is formed of a plastic material and has a circumferentially Extending edge which fits into the groove in said casing, the circumferentially extending edge of each said cover has a tapered configuration converging inwardly toward the axis of said casing in the direction facing toward the opposite end of said casing, a resilient lip formed around the circumferential edge of each said cover on the outer surface thereof with said lip fitted into said groove and having a portion of its surface bearing in sealed engagement against a corresponding wall surface within said groove, an eccentric mass positioned within said casing and movable therein under the influence of compressed air, said grooves of said casing being formed with at least the surface thereof adjacent the end of said casing extending perpendicularly to the axis of said casing, and the portion of said lip of said cover bearing in sealed engagement against a corresponding wall surface of said groove being in bearing contact with said perpendicularly extending surface of said groove.
Claim 3
Dependent Claim
223 words
A compressed air vibrator comprising a cylindrical casing open at its opposite ends, a cover for each of the opposite ends of said casing for forming closures therefor, wherein the improvement comprises that said casing has a circumferentially extending groove in its inner surface adjacent each of its open ends, each said cover is formed of a plastic material and has a circumferentially Extending edge which fits into the groove in said casing, the circumferentially extending edge of each said cover has a tapered configuration converging inwardly toward the axis of said casing in the direction facing toward the opposite end of said casing, a resilient lip formed around the circumferential edge of each said cover on the outer surface thereof with said lip fitted into said groove and having a portion of its surface bearing in sealed engagement against a corresponding wall surface within said groove, an eccentric mass positioned within said casing and movable therein under the influence of compressed air, said grooves of said casing being formed with at least the surface thereof adjacent the end of said casing extending perpendicularly to the axis of said casing, and the portion of said lip of said cover bearing in sealed engagement against a corresponding wall surface of said groove being in bearing contact with said perpendicularly extending surface of said groove.
Claim 4
Dependent Claim
223 words
A compressed air vibrator comprising a cylindrical casing open at its opposite ends, a cover for each of the opposite ends of said casing for forming closures therefor, wherein the improvement comprises that said casing has a circumferentially extending groove in its inner surface adjacent each of its open ends, each said cover is formed of a plastic material and has a circumferentially Extending edge which fits into the groove in said casing, the circumferentially extending edge of each said cover has a tapered configuration converging inwardly toward the axis of said casing in the direction facing toward the opposite end of said casing, a resilient lip formed around the circumferential edge of each said cover on the outer surface thereof with said lip fitted into said groove and having a portion of its surface bearing in sealed engagement against a corresponding wall surface within said groove, an eccentric mass positioned within said casing and movable therein under the influence of compressed air, said grooves of said casing being formed with at least the surface thereof adjacent the end of said casing extending perpendicularly to the axis of said casing, and the portion of said lip of said cover bearing in sealed engagement against a corresponding wall surface of said groove being in bearing contact with said perpendicularly extending surface of said groove.
Claim 5
Dependent Claim
54 words
A compressed air vibrator, as set forth in claim 1, wherein each said cover has an annular groove formed in its outwardly facing surface relative to the interior of said casing so that the portion of said cover extending radially outwardly from said groove to the circumferentially extending edge thereof forms said resilient lip.
References Cited (Backward Citations)
US2675777A
Cited
US1346221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |