US3601412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for mounting and axially fixing a shaft seal
Assignee: Forsheda Gummifabrik AB
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Filing: 1970-02-27
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Granted: 1971-08-24
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Expires: 1990-02-27
Abstract
Abstract An arrangement for the mounting and axial fixation of shaft seals of the type consisting of a rubber ring stretched around the shaft and providing a point of fastening for an integrating funnel-shaped sealing lip, which seals axially against a sealing surface that is essentially perpendicular to the longitudinal direction of the shaft, characterized by the fact that a support securely fastened at points in connection with the sealing surface and against which a ring-shaped support surface effected on the rubber ring then slides when the shaft turns, whereby the support is so positioned with respect to the sealing surface that the sealing lip assumes a correct axial position with respect to the sealing surface after one revolution.
Inventors
- 👤 Sven-Erik Malmstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:43
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3436; F16J15/3456
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
98 words
The combination comprising a seal adapted to be mounted on a shaft or the like to provide a seal between the shaft and a member rotatable relative to the shaft and having a sealing surface extending transversely to the axis of the shaft, said seal including a body portion and a flexible annular lip projecting from said body portion, and a support mounted on said member adjacent said sealing surface engageable with said seal whereby upon relative rotation of said shaft and member the annular sealing lip assumes a correct position in sealing engagement with said sealing surface.
Claim 2
Dependent Claim
98 words
The combination comprising a seal adapted to be mounted on a shaft or the like to provide a seal between the shaft and a member rotatable relative to the shaft and having a sealing surface extending transversely to the axis of the shaft, said seal including a body portion and a flexible annular lip projecting from said body portion, and a support mounted on said member adjacent said sealing surface engageable with said seal whereby upon relative rotation of said shaft and member the annular sealing lip assumes a correct position in sealing engagement with said sealing surface.
Claim 3
Dependent Claim
53 words
The combination as claimed in claim 1 wherein said body portion has inner and outer axial end faces and wherein said support includes guide means confronting the inner and outer axial end faces whereby the sealing lip maintains contact with the sealing surface when the shaft is shifted longitudinally relative to said member.
Claim 4
Dependent Claim
20 words
The combination as claimed in claim 2 wherein said guide means includes a pair of radially directed spaced guide flanges.
Claim 5
Dependent Claim
45 words
The combination as claimed in claim 3 wherein said radially directed flanges are selectively adjustable between a first position wherein the flanges confront the inner and outer axial end faces of said seal, and a second position wherein the flanges are in nonconfronting relation thereto.
Claim 6
Dependent Claim
37 words
The combination as claimed in claim 1 wherein the body portion includes inner and outer axial end faces and said support member includes rotatable means adapted to engage the outer axial end face of said body portion.
Claim 7
Dependent Claim
29 words
The combination as claimed in claim 1 wherein said body portion includes a radially directed circumferentially extending groove and wherein said support includes a flange engageable in said groove.
Claim 8
Dependent Claim
46 words
The combination as claimed in claim 6 wherein said flange is mounted by means of a screw engageable in said member adjacent said sealing surface and a collar circumscribing said screw to position the flange in a predetermined position relative to the groove in said seal.
Claim 9
Dependent Claim
31 words
The combination as claimed in claim 1 wherein said support is a one-piece member of zigzag configuration having a portion engageable in a groove in the body portion of said seal.
Claim 10
Dependent Claim
112 words
The combination comprising a pair of seals adapted to be mounted on a shaft or the like to provIde a seal between the shaft member and a member rotatable relative to the shaft member and having a wall portion extending transversely to the axis of the shaft, each of said seals including a body portion and a flexible annular lip projecting from said body portion adapted to engage the wall on opposite sides thereof, and a support mounted on said member engageable with each of said seals whereby upon relative rotation of said shaft and member the annular sealing lips are maintained in a correct position in sealing engagement with said wall.
Claim 11
Dependent Claim
112 words
The combination comprising a pair of seals adapted to be mounted on a shaft or the like to provIde a seal between the shaft member and a member rotatable relative to the shaft member and having a wall portion extending transversely to the axis of the shaft, each of said seals including a body portion and a flexible annular lip projecting from said body portion adapted to engage the wall on opposite sides thereof, and a support mounted on said member engageable with each of said seals whereby upon relative rotation of said shaft and member the annular sealing lips are maintained in a correct position in sealing engagement with said wall.
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) | 1974-08-23 | 1975-02-22 | 1975-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-23 | 1979-02-22 | 1979-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-23 | 1983-02-22 | 1983-08-24 | $7700.00 | Window Closed / Lapsed |