US3700248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide ring for radial and axial sealing
Assignee: Individual
•
Filing: 1969-11-10
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Granted: 1972-10-24
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Expires: 1989-11-10
Abstract
Abstract A slide ring seal for radial and axial sealing between a stationary and a rotating machine part, particularly in roller bearings, journal bearings and the like. Independent, strong and thick rings are tightly fastened to each machine part in a common radial plane with respect to one another, while an axial annular gap is maintained between them. The gap is covered by at least one annular plate which is held to the tight-fitting rings by magnetic force.
Inventors
- 👤 Fritz Teske
- 👤 Lothar Teske
- 👤 Robert Dreismann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:58
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3436; F16J15/3456; F16C; F16C33/00; F16C33/30; F16C33/58; F16C33/60; F16C33/605; F16C33/72; F16C33/74; F16C33/76; F16C33/78; F16C33/7836; F16J15/3444
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
161 words
A slide ring seal for sealing an annular space between the races of ball bearings comprising, in combination: a. first and second ring means each formed from a permanently magnetized material, each of said ring means being attached to a respective one of said races in a sealing manner by means including a groove means formed in each of the races, each groove means receiving one of the ring means such that relative rotation between said ring means and their respective races is prevented, said ring means being arranged in a common radial plane and having an annular gap between them; and b. at least one flexible, thin annular plate means, said annular plate means being formed from a magnetic material, said ring means and said plate means having abutment surfaces which are magnetically held such that said plate means forms a slidable contact with said ring means so that said plate means covers the annular gap between said ring means.
Claim 2
Dependent Claim
161 words
A slide ring seal for sealing an annular space between the races of ball bearings comprising, in combination: a. first and second ring means each formed from a permanently magnetized material, each of said ring means being attached to a respective one of said races in a sealing manner by means including a groove means formed in each of the races, each groove means receiving one of the ring means such that relative rotation between said ring means and their respective races is prevented, said ring means being arranged in a common radial plane and having an annular gap between them; and b. at least one flexible, thin annular plate means, said annular plate means being formed from a magnetic material, said ring means and said plate means having abutment surfaces which are magnetically held such that said plate means forms a slidable contact with said ring means so that said plate means covers the annular gap between said ring means.
Claim 3
Dependent Claim
38 words
A slide ring seal as defined in claim 1, wherein each of said ring means is a permanent magnet having at least one pair of north and south poles alternating in the radial direction along its abutment surface.
Claim 4
Dependent Claim
23 words
A slide ring seal as defined in claim 2, wherein said at least one annular plate means is constructed from a magnetizable steel.
Claim 5
Dependent Claim
31 words
A slide ring seal as defined in claim 2, wherein said at least one annular plate means is constructed from a flexible synthetic material having a magnetizable material dispersed through it.
Claim 6
Dependent Claim
42 words
A slide ring seal as defined in claim 1, wherein said at least one annular plate means is a permanent magnet having at least one pair of alternating north and south poles spaced along the abutment surface of said annular plate means.
Claim 7
Dependent Claim
30 words
A slide ring seal as defined in claim 5, wherein the alternating north and south poles are disposed in concentric circles on the abutment surface of said annular plate means.
Claim 8
Dependent Claim
59 words
A slide ring seal as defined in claim 6, wherein said ring means and said annular plate means each include a plurality of magnetic poles alternating from north poles to south poles along the abutment surface of the respective means, the spacing of the alternating poles being interrupted at certain points on the abutment surface of the respective means.
Claim 9
Dependent Claim
34 words
A slide ring seal as defined in claim 1, wherein the width of the annular gap between said ring means is substantially equal to the thIckness of said at least one annular plate means.
Claim 10
Dependent Claim
43 words
A slide ring seal as defined in claim 1 wherein said ring means each have at least one pair of opposed radial surfaces and there are two annular plate means, each annular plate means held to a respective one of the opposing surfaces.
Claim 11
Dependent Claim
31 words
A slide ring seal as defined in claim 1, wherein each groove means includes an undercut portion which engages said ring means for directly fastening said ring means with said races.
Claim 12
Dependent Claim
22 words
A slide ring seal as defined in claim 1, further comprising intermediate means to attach said ring means to their respective races.
Claim 13
Dependent Claim
17 words
A slide ring seal as defined in claim 1, wherein said plate means is not permanently magnetized.
Claim 14
Dependent Claim
28 words
A slide ring seal as defined in claim 1, wherein said ring means forms a recess in which said plate means is received to form said slidable contact.
Claim 15
Dependent Claim
135 words
A slide ring seal for sealing an annular space between a stationary machine component and a rotating machine component comprising, in combination: a. first and second ring means each formed from a magnetic material, said first ring means being attached to the stationary machine component and said second ring means being attached to the rotating machine component, said ring means being arranged in a common radial plane and having an annular gap between them; b. at least one flexible, thin annular plate means, said annular plate means being formed from a magnetic material and being magnetically held against said ring means so that it covers the annular gap between the ring means; and c. means including at least one intermediate ring for each ring means to attach said ring means to their respective machine components.
Claim 16
Dependent Claim
135 words
A slide ring seal for sealing an annular space between a stationary machine component and a rotating machine component comprising, in combination: a. first and second ring means each formed from a magnetic material, said first ring means being attached to the stationary machine component and said second ring means being attached to the rotating machine component, said ring means being arranged in a common radial plane and having an annular gap between them; b. at least one flexible, thin annular plate means, said annular plate means being formed from a magnetic material and being magnetically held against said ring means so that it covers the annular gap between the ring means; and c. means including at least one intermediate ring for each ring means to attach said ring means to their respective machine components.
Claim 17
Dependent Claim
21 words
A slide ring seal as defined in claim 14, wherein said at least one intermediate ring is two radially abutting rings.
Claim 18
Dependent Claim
28 words
A slide ring seal as defined in claim 14, wherein said intermediate rings are attached to their respective machine components by undercut, annular recesses in the machine components.
Claim 19
Dependent Claim
132 words
A slide ring seal for sealing an annular space between a stationary machine component and a rotating machine component comprising, in combination: a. first and second ring means each formed from a magnetic material, said first ring means being attached to the stationary machine component and said second ring means being attached to the rotating machine component, said ring means being arranged in a common radial plane and having an annular gap between them; and b. at least one flexible, thin annular plate means, said annular plate means being formed from a magnetic material and being magnetically held against said ring means so that it covers the annular gap between the ring means, said annular plate means having axially extending collars and said ring means having annular grooves that receive said collars.
Claim 20
Dependent Claim
132 words
A slide ring seal for sealing an annular space between a stationary machine component and a rotating machine component comprising, in combination: a. first and second ring means each formed from a magnetic material, said first ring means being attached to the stationary machine component and said second ring means being attached to the rotating machine component, said ring means being arranged in a common radial plane and having an annular gap between them; and b. at least one flexible, thin annular plate means, said annular plate means being formed from a magnetic material and being magnetically held against said ring means so that it covers the annular gap between the ring means, said annular plate means having axially extending collars and said ring means having annular grooves that receive said collars.
Claim 21
Dependent Claim
127 words
A slide ring seal for sealing an annular space between a stationary machine component and a rotating machine component comprising, in combination: a. first and second ring means each formed from a magnetic material, said first ring means being attached to the stationary machine component and said second ring means being attached to the rotating machine component, said ring means being arranged in a common radial plane and having an annular gap between them; and b. at least one flexible, thin annular plate means, said annular plate means being formed from a magnetic material and being magnetically held against said ring means so that it covers the annular gap between the ring means, said ring means having annular recesses into which said annular plate means is disposed.
Claim 22
Dependent Claim
127 words
A slide ring seal for sealing an annular space between a stationary machine component and a rotating machine component comprising, in combination: a. first and second ring means each formed from a magnetic material, said first ring means being attached to the stationary machine component and said second ring means being attached to the rotating machine component, said ring means being arranged in a common radial plane and having an annular gap between them; and b. at least one flexible, thin annular plate means, said annular plate means being formed from a magnetic material and being magnetically held against said ring means so that it covers the annular gap between the ring means, said ring means having annular recesses into which said annular plate means is disposed.
Claim 23
Dependent Claim
131 words
A slide ring seal for sealing an annular space between a stationary machine component and a rotating machine component comprising, in combination: a. first and second ring means each formed from a magnetic material, said first ring means being attached to the stationary machine component and said second ring means being attached to the rotating machine Component, said ring means being arranged in a common radial plane and having an annular gap between them; and b. at least one flexible, thin annular plate means, said annular plate means being formed from a magnetic material and being magnetically held against said ring means so that it covers the annular gap between the ring means, said ring means are annular rings having axially extending collars disposed in annular recesses in the machine components.
Claim 24
Dependent Claim
131 words
A slide ring seal for sealing an annular space between a stationary machine component and a rotating machine component comprising, in combination: a. first and second ring means each formed from a magnetic material, said first ring means being attached to the stationary machine component and said second ring means being attached to the rotating machine Component, said ring means being arranged in a common radial plane and having an annular gap between them; and b. at least one flexible, thin annular plate means, said annular plate means being formed from a magnetic material and being magnetically held against said ring means so that it covers the annular gap between the ring means, said ring means are annular rings having axially extending collars disposed in annular recesses in the machine components.
Claim 25
Dependent Claim
23 words
A slide ring seal as defined in claim 19, wherein said annular plate means has axially extending collars disposed in said ring means.
References Cited (Backward Citations)
US2959832A
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GB874517A
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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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |