US3833228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stackable sealing mechanism
Assignee: CHENPRENE Inc
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Filing: 1973-07-19
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Granted: 1974-09-03
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Expires: 1993-07-19
Abstract
Abstract There is disclosed a sealing design which allows seal members to be stacked upon each other in a manner which substantially reduces leakage, reduces the friction which generally accompanies expansion of a seal ring when pressure is applied thereto and offers self-aligning and high-load bearing properties. The sealing member preferably comprises at least two or more stacked seal members having similar designs which allow the individual members of the sealing mechanism to interlock giving the aforementioned benefits and advantages.
Inventors
- 👤 H Gilliam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:31
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/18; F16J15/20
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
98 words
An interlocking seal comprising: a dome projection located at a top portion of the seal; upper shoulders attached to said dome projection and sloping in a downward direction from said dome; a channel located in each upper shoulder; side walls attached to said upper shoulders and extending in a downward direction from said shoulders; a wedgeshape cavity having an apex and lower shoulders; a dome cavity containing said apex; the lower shoulders of said cavity attached to said side walls and extending in an upward direction toward said dome projection; and, a bead located on each lower shoulder.
Claim 2
Dependent Claim
98 words
An interlocking seal comprising: a dome projection located at a top portion of the seal; upper shoulders attached to said dome projection and sloping in a downward direction from said dome; a channel located in each upper shoulder; side walls attached to said upper shoulders and extending in a downward direction from said shoulders; a wedgeshape cavity having an apex and lower shoulders; a dome cavity containing said apex; the lower shoulders of said cavity attached to said side walls and extending in an upward direction toward said dome projection; and, a bead located on each lower shoulder.
Claim 3
Dependent Claim
21 words
Claim 1 in that said seal comprises material selected from the group consisting of elastomeric polymers, thermosetting plastic, thermoplastics and metals.
Claim 4
Dependent Claim
9 words
Claim 1 in that said dome projection is semicircular.
Claim 5
Dependent Claim
18 words
Claim 1 in that said channel in each upper shoulder comprises a trough having a semi-circular cross-sectional area.
Claim 6
Dependent Claim
15 words
Claim 1 in that each bead comprises a ridge projection having a semi-circular cross-sectional area.
Claim 7
Dependent Claim
9 words
Claim 1 in that said dome cavity is semicircular.
Claim 8
Dependent Claim
12 words
Claim 1 in that said upper and lower shoulders are flat surfaces.
Claim 9
Dependent Claim
266 words
An interlocking stackable seal having a general ring-like construction, described in relation to an axis passing through a center of said ring as comprising: a dome projection located on a top portion of the seal; an inner-upper shoulder attached to said dome projection extending radially toward said axis and in a downward direction with respect to said dome; an inner channel in said inner-upper shoulder; an inner side wall attached to said inner-upper shoulder and extending radially toward said axis and in a downward direction with respect to said dome; an outer-upper shoulder attached to said dome extending radially away from said axis and in a downward direction with respect to said dome; an outer channel in said outer-upper shoulder; an outer side wall attached to said outer-upper shoulder and extending radially away from said axis and in a downward direction with respect to said dome; a wedge-shape cavity located between said side walls and below said dome; an inner-lower cavity shoulder connected to said inner side wall, said inner-lower cavity shoulder extending radially away from said axis and in an upward direction with respect to said dome; an inner bead located on said inner-lower cavity shoulder; an outer-lower cavity shoulder connected to said outer side wall extending radially toward said axis And in an upward direction with respect to said dome; an outer bead located on said outer-lower cavity shoulder; a dome shaped cavity located in said wedge-shape cavity, connected to said inner and outer-lower cavity shoulders and positioned so that said dome cavity opens in a downward direction with respect to said dome projection.
Claim 10
Dependent Claim
266 words
An interlocking stackable seal having a general ring-like construction, described in relation to an axis passing through a center of said ring as comprising: a dome projection located on a top portion of the seal; an inner-upper shoulder attached to said dome projection extending radially toward said axis and in a downward direction with respect to said dome; an inner channel in said inner-upper shoulder; an inner side wall attached to said inner-upper shoulder and extending radially toward said axis and in a downward direction with respect to said dome; an outer-upper shoulder attached to said dome extending radially away from said axis and in a downward direction with respect to said dome; an outer channel in said outer-upper shoulder; an outer side wall attached to said outer-upper shoulder and extending radially away from said axis and in a downward direction with respect to said dome; a wedge-shape cavity located between said side walls and below said dome; an inner-lower cavity shoulder connected to said inner side wall, said inner-lower cavity shoulder extending radially away from said axis and in an upward direction with respect to said dome; an inner bead located on said inner-lower cavity shoulder; an outer-lower cavity shoulder connected to said outer side wall extending radially toward said axis And in an upward direction with respect to said dome; an outer bead located on said outer-lower cavity shoulder; a dome shaped cavity located in said wedge-shape cavity, connected to said inner and outer-lower cavity shoulders and positioned so that said dome cavity opens in a downward direction with respect to said dome projection.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-02 | 1978-03-04 | 1978-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-02 | 1982-03-04 | 1982-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-02 | 1986-03-04 | 1986-09-03 | $7700.00 | Window Closed / Lapsed |