US4157833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing ring with diameter indicia
Assignee: Chesterton AW Co
•
Filing: 1977-12-01
•
Granted: 1979-06-12
•
Expires: 1997-12-01
Abstract
Abstract An elastomeric sealing ring having a V-shaped configuration, the wall connecting the legs of the V lying in the plane of the ring, is provided with diameter indicia formed in the wall, the indicia equidistantly circumferentially spaced along an arc segment of the wall and the distance between indicia corresponding to a predetermined portion of the ring inner diameter.
Inventors
- 👤 Peter F. Kozlowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:53
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/20
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
48 words
A sealing ring of elastomeric material characterized in that a plurality of ring diameter indicia are integrally formed in and equidistantly spaced along an arc segment of the surface of a wall of said ring, the distance between indicia corresponding to a predetermined portion of the ring diameter.
Claim 2
Dependent Claim
48 words
A sealing ring of elastomeric material characterized in that a plurality of ring diameter indicia are integrally formed in and equidistantly spaced along an arc segment of the surface of a wall of said ring, the distance between indicia corresponding to a predetermined portion of the ring diameter.
Claim 3
Dependent Claim
20 words
The sealing ring claimed in claim 1 further characterized in that said indicia are raised portions of said wall surface.
Claim 4
Dependent Claim
27 words
The sealing ring claimed in claim 2 further characterized in that said indicia are raised above said wall surface a distance not greater than about 0.002 inch.
Claim 5
Dependent Claim
26 words
The sealing ring claimed in claim 1 further characterized in that said arc segment comprises at least about 20 percent of the circumference of said wall.
Claim 6
Dependent Claim
60 words
The sealing ring claimed in claim 1 further characterized in that said ring in section has a generally V-shaped configuration, the legs of said V defining inner and outer walls of said ring and said legs joined by a third wall lying in the plane of said ring, said third wall defining said surface along which said indicia are positioned.
Claim 7
Dependent Claim
35 words
The sealing ring claimed in claim 5 further characterized in that said indicia are formed in said third wall surface and are spaced a distance corresponding to a predetermined portion of the ring inner diameter.
Claim 8
Dependent Claim
17 words
The sealing ring claimed in claim 6 further characterized in that said ring comprises a continuous annulus.
Claim 9
Dependent Claim
26 words
The sealing ring claimed in claim 6 further characterized in that said arc segment comprises at least about 20 percent of the circumference of said wall.
Claim 10
Dependent Claim
29 words
The sealing ring claimed in claim 6 further characterized in that said ring is split by radially extending angular cuts in said arc segment at two of said indicia.
References Cited (Backward Citations)
FR684106A
Cited
US1942704A
Cited
US2665151A
Cited
US2706655A
Cited
US3521890A
Cited
DE2141758A1
Cited
US3955673A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-06-11 | 1982-12-11 | 1983-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-11 | 1986-12-11 | 1987-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-11 | 1990-12-11 | 1991-06-12 | $7700.00 | Window Closed / Lapsed |