Patent US3732052A successfully refreshed from Google Patents.
US3732052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the continuous manufacture of precast reinforced concrete products, particularly slabs and beams
Assignee: Fried Remy Nachfolger KG
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Filing: 1971-02-22
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Granted: 1973-05-08
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Expires: 1991-02-22
Abstract
Abstract Apparatus for the continuous manufacture of precast reinforced concrete products. There is provided an elongated mold track with the rails arranged on both sides thereof. Means for distributing concrete are supported on said rails for movement therealong. Said molds are supported on said mold track by suitable carriage means which are themselves supported on said rails. Vibratory compacting and smoothing means may also be supported, interchangeably if desired, on said carriages. Stepwise movable separating means, which may include a vertically vibratory knife, are supported on said rails and arranged for suitably cutting the poured concrete into selected lengths. Heat insulative covering hoods are arranged over said molds and means are provided for lifting said hoods off from mold carrying carriages wherein the concrete material is partially dried and replacing same over freshly poured concrete products.
Inventors
- 👤 K Gunia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:03
CPC Classifications
B; B28; B28B; B28B15/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
149 words
Apparatus for the continuous manufacture of precast reinforced concrete products, particularly slabs and beams, comprising: at least one stationary, horizontal, heated mold track of substantial length which is supported on a foundation; rails arranged on both sides along said mold track; a concrete distributor adapted to be moved on said rails for applying and distributing the fresh concrete on the mold track; a production unit on said rails which consists of compactors, smoothing means and sliding molds; means for continuously moving said unit; a separating device connected to said unit with means for moving in a stepwise manner; a plurality of heat-insulating covering hoods for the mold track; and a conveying device adapted to be moved with the production unit and which is adapted to successively lift the covering hoods positioned in front of said production unit and set same down again behind said unit onto the mold truck.
Claim 2
Dependent Claim
149 words
Apparatus for the continuous manufacture of precast reinforced concrete products, particularly slabs and beams, comprising: at least one stationary, horizontal, heated mold track of substantial length which is supported on a foundation; rails arranged on both sides along said mold track; a concrete distributor adapted to be moved on said rails for applying and distributing the fresh concrete on the mold track; a production unit on said rails which consists of compactors, smoothing means and sliding molds; means for continuously moving said unit; a separating device connected to said unit with means for moving in a stepwise manner; a plurality of heat-insulating covering hoods for the mold track; and a conveying device adapted to be moved with the production unit and which is adapted to successively lift the covering hoods positioned in front of said production unit and set same down again behind said unit onto the mold truck.
Claim 3
Dependent Claim
44 words
Apparatus according to claim 1, wherein for each mold track there is arranged a tunnel adapted to be moved lengthwise of said mold track and protecting the production unit, the conveyor mechanism and the operators, which tunnel is moved together with the production unit.
Claim 4
Dependent Claim
39 words
Apparatus according to claim 2, wherein the conveying device is arranged on the tunnel construction and is constructed in such a manner that the covering hoods are lifted and are conveyed above the production unit to the setting-down place.
Claim 5
Dependent Claim
29 words
Apparatus according to claim 1, wherein the mold track consists of concrete with built-in heating elements and the underside of the mold track is provided with an insulating layer.
Claim 6
Dependent Claim
22 words
Apparatus according to claim 4, wherein the mold track consists of precast concrete products and that these have elevation-adjustable supports for alignment.
Claim 7
Dependent Claim
19 words
Apparatus according to claim 4, wherein an elastic, insulating layer is arraNged between the mold track and the foundation.
Claim 8
Dependent Claim
54 words
Apparatus according to claim 4, wherein the mold track consists of a level plate and lateral, downwardly extending angles which are supported on the foundation, which angles each have an outer vertical mold wall so that with suitable sliding molds slabs which are rectangular, L-shaped slabs and T-shaped beams in cross-section can be manufactured.
Claim 9
Dependent Claim
15 words
Apparatus according to claim 1, wherein the sliding molds are supported on separate carriage units.
Claim 10
Dependent Claim
36 words
Apparatus according to claim 8, wherein compactor and smoothing means are constructed as equal, exchangeable structural units and are coupled to one another and there are interposed elastic buffers to the undercarriage of the sliding molds.
Claim 11
Dependent Claim
45 words
Apparatus according to claim 1, wherein a hood moving device movable on the longitudinal rails and having elevating mechanisms, which hood moving device permits the simultaneous lifting off of several covering hoods and their movement above the hoods which are still on the mold track.
Claim 12
Dependent Claim
15 words
Apparatus according to claim 10, wherein the moving device has several connectible equal individual devices.
Claim 13
Dependent Claim
29 words
Apparatus according to claim 10, wherein a cleaning machine adapted to be moved lengthwise of the mold track is arranged behind the connnectible moving devices for cleaning said track.
Claim 14
Dependent Claim
44 words
Apparatus according to claim 12, wherein behind the connectible moving devices there is arranged an independent, short moving device under which the cleaning device is located in its normal position in which the short moving device forms a stop for the connectible moving device.
Claim 15
Dependent Claim
45 words
Apparatus according to claim 1, wherein two or more mold tracks are arranged closely spaced side-by-side and for these only one set of production devices, movable from one track to the other track, is arranged in such a manner that cyclic production can be obtained.
Claim 16
Dependent Claim
18 words
Apparatus according to claim 1, wherein the separating device has a cutting knife adapted for vertical vibratory movement.
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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |