Patent US3887292A successfully refreshed from Google Patents.
US3887292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spanning joints
Assignee: Körber AG
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Filing: 1974-09-03
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Granted: 1975-06-03
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Expires: 1994-09-03
Abstract
Abstract The invention relates to apparatus for spanning expansion joints in public roads, consisting of marginal bodies, which are anchored in the joint margins in an opposed arrangement, are disposed adjoining the upper surface of the road and the joint and are made of metal and rubber sections connected together by vulcanisation, also comprising a lateral groove in each case, which is open in the direction of the joint, for the sealing accommodation of the fixture members of an elastic expansion body covering the joint.
Inventors
- 👤 Waldemar Koster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:26
CPC Classifications
E; E01; E01D; E01D19/00; E01D19/06; E01C; E01C11/00; E01C11/02; E01C11/04; E01C11/12; E01C11/126
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
127 words
In a device for spanning expansion joints in roads, comprising: marginal bodies of metal and elastomeric material anchored in the joint margins in an opposed arrangement and disposed adjoining the road surface and the joint, said bodies having a lateral groove with an aperture which is open in the direction of the joint for the sealing accomadation of members of an elastic expansion body covering the joint, the improvement in which each marginal body comprises an intermediate layer of rubber, on the underside of which is a metal mounting anchored in the joint margin; and on the upper surface of the intermediate layer there is a metal plate, the groove being defined at least in part by the intermediate layer, the metal mounting and the metal plate.
Claim 2
Dependent Claim
127 words
In a device for spanning expansion joints in roads, comprising: marginal bodies of metal and elastomeric material anchored in the joint margins in an opposed arrangement and disposed adjoining the road surface and the joint, said bodies having a lateral groove with an aperture which is open in the direction of the joint for the sealing accomadation of members of an elastic expansion body covering the joint, the improvement in which each marginal body comprises an intermediate layer of rubber, on the underside of which is a metal mounting anchored in the joint margin; and on the upper surface of the intermediate layer there is a metal plate, the groove being defined at least in part by the intermediate layer, the metal mounting and the metal plate.
Claim 3
Dependent Claim
127 words
In a device for spanning expansion joints in roads, comprising: marginal bodies of metal and elastomeric material anchored in the joint margins in an opposed arrangement and disposed adjoining the road surface and the joint, said bodies having a lateral groove with an aperture which is open in the direction of the joint for the sealing accomadation of members of an elastic expansion body covering the joint, the improvement in which each marginal body comprises an intermediate layer of rubber, on the underside of which is a metal mounting anchored in the joint margin; and on the upper surface of the intermediate layer there is a metal plate, the groove being defined at least in part by the intermediate layer, the metal mounting and the metal plate.
Claim 4
Dependent Claim
127 words
In a device for spanning expansion joints in roads, comprising: marginal bodies of metal and elastomeric material anchored in the joint margins in an opposed arrangement and disposed adjoining the road surface and the joint, said bodies having a lateral groove with an aperture which is open in the direction of the joint for the sealing accomadation of members of an elastic expansion body covering the joint, the improvement in which each marginal body comprises an intermediate layer of rubber, on the underside of which is a metal mounting anchored in the joint margin; and on the upper surface of the intermediate layer there is a metal plate, the groove being defined at least in part by the intermediate layer, the metal mounting and the metal plate.
Claim 5
Dependent Claim
48 words
In a device as claimed in claim 1, the improvement in which the groove is formed with undercuts adjacent its aperture and which extend transversely thereto, the outer areas of the undercuts being disposed adjacent the metal plate on one side and the metal mounting on the other.
Claim 6
Dependent Claim
25 words
In a device as claimed in claim 1, the improvement in which a layer of wear resistant, elastomeric material is applied to the metal plate.
Claim 7
Dependent Claim
46 words
In a device as claimed in claim 3, the improvement in which the thickness of the layer is reduced from the edge of the roadway covering adjacent the marginal body, in the direction of the joint, and the metal plate extends in a correspondingly inclined position.
Claim 8
Dependent Claim
29 words
In a device as claimed in claim 1, the improvement in which the metal mounting and the metal plate are connected together at their edges adjacent the roadway covering.
Claim 9
Dependent Claim
22 words
In a device as claimed in Claim 1, the improvement in which the metal plate is completely embedded in the intermediate layer.
Claim 10
Dependent Claim
25 words
In a device as claimed in claim 1, the improvement in which the metal plate and/or the metal mounting have interuptions or perforations formed therein.
References Cited (Backward Citations)
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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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |