Patent US3707852A successfully refreshed from Google Patents.
US3707852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing sleeve of elastic material
Assignee: Daimler Benz AG
•
Filing: 1968-09-27
•
Granted: 1973-01-02
•
Expires: 1988-09-27
Abstract
Abstract A sealing sleeve made from elastic material, particularly for sealing the gap between a joint part and a shaft in rapidly rotating, so-called homo-kinetic joints, in which the inner ring of the sealing sleeve abuts sealingly against the shaft and the outer ring against a joint part, whereby the outer ring and the inner ring are connected with each other by a conically constructed ring diaphragm which is deformable into a roller bellows in the installed position.
Inventors
- 👤 M Burckhardt
- 👤 L Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:21
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/50; F16J15/52
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
102 words
A gasket-type sealing arrangement comprising: two mutually movable parts including a joint section and a shaft with a gap therebetween, which rotate together, a gasket of elastic material having an inner ring portion and an outer ring portion installed between said mutually movable parts and contacting said shaft and joint section, respectively, and further having the shape of a roller bellows connecting said inner and outer ring portions, said gasket formed of an annular membrane which is pre-stressed so that the membrane seeks to assume a conical shape, and said ring portions positioned to hold said membrane from its unstressed conical shape.
Claim 2
Dependent Claim
102 words
A gasket-type sealing arrangement comprising: two mutually movable parts including a joint section and a shaft with a gap therebetween, which rotate together, a gasket of elastic material having an inner ring portion and an outer ring portion installed between said mutually movable parts and contacting said shaft and joint section, respectively, and further having the shape of a roller bellows connecting said inner and outer ring portions, said gasket formed of an annular membrane which is pre-stressed so that the membrane seeks to assume a conical shape, and said ring portions positioned to hold said membrane from its unstressed conical shape.
Claim 3
Dependent Claim
15 words
A sealing arrangement gasket is directed toward the side of the joint to be sealed.
Claim 4
Dependent Claim
15 words
A sealing arrangement gasket is directed toward the side of the joint to be sealed.
Claim 5
Dependent Claim
20 words
A sealing arrangement according to claim 2, wherein the cone angle of the membrane amounts to about 30* to 50*.
Claim 6
Dependent Claim
30 words
A sealing arrangement according to claim 3, wherein the formation of the roller bellows is created by the displacement of said inner ring portion along the axis of said shaft.
Claim 7
Dependent Claim
25 words
A sealing arrangement according to claim 4, wherein the outer ring portion is secured at the joint section on the side thereof facing said shaft.
Claim 8
Dependent Claim
21 words
A sealing arrangement according to claim 4, wherein the outer ring portion is secured on the outside of the joint section.
Claim 9
Dependent Claim
26 words
A sealing arrangement according to claim 3, wherein the formation of the roller bellows is realized by an inverting bead provided at the outer ring portion.
Claim 10
Dependent Claim
29 words
A sealing arrangement according to claim 7, wherein said bead provided at the outer ring portion is secured on the outside of the joint section by a clamping ring.
Claim 11
Dependent Claim
21 words
A sealing arrangement according to claim 1, wherein the cone angle of the deformable membrane amounts to about 30* to 50*.
Claim 12
Dependent Claim
30 words
A sealing arrangement according to claim 1, wherein the formation of the roller bellows is created by the displacement of said inner ring portion along the axis of said shaft.
Claim 13
Dependent Claim
22 words
A sealing arrangement according to claim 10, wherein the outer ring portion is secured at the joint section on the inside thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |