US4158916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction apparatus
Assignee: Individual
•
Filing: 1977-07-20
•
Granted: 1979-06-26
•
Expires: 1997-07-20
Abstract
Abstract In combination with a suction apparatus to eject saliva from the mouth of a human being during dental procedures, an attachment to be attached to the open end of a suction tube. The attachment comprises a suction apparatus cover in the form of a cloth, a fine mesh screening or a porous plastic material which is to evenly distribute the application of the vacuum across the exterior surface of the cover.
Inventors
- 👤 Harold A. Adler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:48
CPC Classifications
A; A61; A61C; A61C17/00; A61C17/06; A61C17/08
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
168 words
A suction apparatus designed primarily as a saliva ejector for the mouth of a human being during dental procedures, said suction apparatus taking the form of an elongated tube through which a vacuum is applied, the elongated tube having an open end, a head attached to said tube at said open end, said head including enlarged openings to apply vacuum to the ambient, said head being larger in cross-section than said elongated tube, said head adapted to be located within the user's mouth, the improvement comprising: a suction distribution means located about said head for substantially evenly distributing the application of vacuum across the exterior surface of said distribution means, said distribution means comprises an elastic cloth layer of material having a substantial number of small sized openings evenly distributed across said layer of material, said suction distribution means comprises an elastic cover which is readily slipped over and off of said head, said cover being tightly located about said head, said cover extending across said enlarged openings.
Claim 2
Dependent Claim
168 words
A suction apparatus designed primarily as a saliva ejector for the mouth of a human being during dental procedures, said suction apparatus taking the form of an elongated tube through which a vacuum is applied, the elongated tube having an open end, a head attached to said tube at said open end, said head including enlarged openings to apply vacuum to the ambient, said head being larger in cross-section than said elongated tube, said head adapted to be located within the user's mouth, the improvement comprising: a suction distribution means located about said head for substantially evenly distributing the application of vacuum across the exterior surface of said distribution means, said distribution means comprises an elastic cloth layer of material having a substantial number of small sized openings evenly distributed across said layer of material, said suction distribution means comprises an elastic cover which is readily slipped over and off of said head, said cover being tightly located about said head, said cover extending across said enlarged openings.
Claim 3
Dependent Claim
24 words
The apparatus as defined in claim 1 including: said cover including an integral collar, said collar being in tight engagement with said elongated tube.
References Cited (Backward Citations)
US530556A
Cited
US1698331A
Cited
US3000805A
Cited
US3324855A
Cited
US3758950A
Cited
US4083115A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-06-25 | 1982-12-25 | 1983-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-25 | 1986-12-25 | 1987-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-25 | 1990-12-25 | 1991-06-26 | $7700.00 | Window Closed / Lapsed |