US5127641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air spring having a sleeve-like flexible member
Assignee: Continental AG
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Filing: 1991-02-22
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Granted: 1992-07-07
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Expires: 2011-02-22
Abstract
Abstract An air spring having a sleeve-like flexible member made of elastomeric material. A beadless end portion of the flexible member is attached to a mount by being clamped between the mount and a clamping piece. The mount and the clamping piece have conical clamping faces which coact to provide a reliable attachment which is easy to assemble. The conical clamping piece is arranged so as to be axially displaceable in the mount to conjointly define a clamping gap with the mount. The clamping piece closes the clear cross section of the end portion of the flexible member in an airtight manner.
Inventors
- 👤 Eckhard Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:56
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/02; F16F9/04; F16F9/0454
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
107 words
An air spring comprising: a flexible member defining an interior space under pressure; said flexible member being made of elastomeric material and having an annular beadless end portion; a mount having a first conical clamping face and defining a longitudinal axis; a clamping piece disposed within said end portion and having a second conical clamping face; and, said clamping piece being displaceably located within said interior space so as to be movable along said axis toward said mount in response to said pressure so as to cause said clamping faces to conjointly define a clamping gap for clamping said end portion therein to form an airtight seal.
Claim 2
Dependent Claim
107 words
An air spring comprising: a flexible member defining an interior space under pressure; said flexible member being made of elastomeric material and having an annular beadless end portion; a mount having a first conical clamping face and defining a longitudinal axis; a clamping piece disposed within said end portion and having a second conical clamping face; and, said clamping piece being displaceably located within said interior space so as to be movable along said axis toward said mount in response to said pressure so as to cause said clamping faces to conjointly define a clamping gap for clamping said end portion therein to form an airtight seal.
Claim 3
Dependent Claim
24 words
The air spring of claim 1, wherein said air spring is a sleeve-shaped air spring and said flexible member is a sleeve-shaped flexible member.
Claim 4
Dependent Claim
14 words
The air spring of claim 2, said clamping piece having a truncated conical configuration.
Claim 5
Dependent Claim
18 words
The air spring of claim 2, further comprising guide means for guiding said clamping piece in said mount.
Claim 6
Dependent Claim
42 words
The air spring of claim 4, said guide means including a bore formed in said mount along said axis; and, said clamping piece having a projection formed centrically thereon for engaging said bore when said clamping piece is displaced toward said mount.
Claim 7
Dependent Claim
24 words
The air spring of claim 5, said projection and said bore conjointly defining a latching interface when said projection is seated in said bore.
Claim 8
Dependent Claim
47 words
The air spring of claim 6, said latching interface including a first set of holding teeth formed in said bore and a second set of holding teeth formed on said projection and engaging said first set of holding teeth when said projection is inserted into said bore.
Claim 9
Dependent Claim
25 words
The air spring of claim 2, said clamping piece having a pan-shaped configuration having an outwardly extending conically shaped wall defining said second clamping face.
Claim 10
Dependent Claim
24 words
The air spring of claim 2, further comprising a peripheral rib formed on at least one of said clamping faces to narrow said gap.
Claim 11
Dependent Claim
57 words
The air spring of claim 9, said annular end portion of said flexible member having an inner diameter of a predetermined diameter before the air spring is taken into service for the first time by filling the flexible member with a gas; and, said peripheral rib having a diameter slightly greater in magnitude than said predetermined diameter.
Claim 12
Dependent Claim
22 words
The air spring of claim 2, further comprising a plurality of peripheral ribs formed on at least one of said clamping faces.
Claim 13
Dependent Claim
18 words
The air spring of claim 2, said clamping faces being formed with respective conicalities different from each other.
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) | 1995-07-07 | 1996-01-06 | 1996-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-07 | 2000-01-06 | 2000-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-07 | 2004-01-06 | 2004-07-07 | $7700.00 | Window Closed / Lapsed |