US3659979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plant for manufacturing small structural elements
Assignee: Individual
•
Filing: 1969-07-07
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Granted: 1972-05-02
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Expires: 1989-07-07
Abstract
Abstract A plant for manufacturing small structural concrete elements comprises a production station and a hardening station which both are provided with means for loading or unloading from a carrier vehicle. The hardening station is formed by a steam treatment tunnel consisting of two sections which are connected by hinge means in that way that for transport of the hardening station, one section is swung in position parallel to, and alongside of the other section. During operation, both sections together form a straight elongated tunnel.
Inventors
- 👤 Wolfgang Schneider
- 👤 Klaus Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:48
CPC Classifications
B; B28; B28B; B28B15/00; B28B15/002
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
137 words
A plant for manufacturing small structural concrete elements, comprising a production station and a hardening station, carrier vehicle means by which each of said stations is movable as a unit relative to the other of saId stations, the hardening station being a steam treatment tunnel the input of which is linkable immediately to the output of the production station, and at the output of which a delivery device is provided which, by means of conveyor means for pallets is connected with an input of the production station, the width of the tunnel being about half the admissible maximum width of a road vehicle, the tunnel being lengthwise divided into two sections of substantially equal length, and means connecting the tunnel sections for relative swinging movement for the transport of one section parallel alongside of the other section.
Claim 2
Dependent Claim
137 words
A plant for manufacturing small structural concrete elements, comprising a production station and a hardening station, carrier vehicle means by which each of said stations is movable as a unit relative to the other of saId stations, the hardening station being a steam treatment tunnel the input of which is linkable immediately to the output of the production station, and at the output of which a delivery device is provided which, by means of conveyor means for pallets is connected with an input of the production station, the width of the tunnel being about half the admissible maximum width of a road vehicle, the tunnel being lengthwise divided into two sections of substantially equal length, and means connecting the tunnel sections for relative swinging movement for the transport of one section parallel alongside of the other section.
Claim 3
Dependent Claim
47 words
A plant according to claim 1, wherein the two sections of the tunnel are connected by means of a hinge around which for bringing the tunnel into operating position, one section may be swung which is provided with at least one supporting wheel which is vertically adjustable.
Claim 4
Dependent Claim
38 words
A plant according to claim 2, wherein at one section of the tunnel a plurality of supporting wheels is provided, each wheel being swingable from a transport position adjacent to the wall of the tunnel, to the outside.
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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |