US3901634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compactor for producing cement wall panels
Assignee: Individual
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Filing: 1972-11-09
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Granted: 1975-08-26
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Expires: 1992-11-09
Abstract
Abstract A compactor for converting a dry, friable cement mix into a concrete panel. The dry, friable mix is inserted into one end of the compactor and the panels produced are removed from the opposite end thereof. A plurality of rotatable members are tandemly spaced along the axis of the compactor and are used to compact the mix as the mix travels along the axis of the apparatus. The compacting means are formed of a series of wheels on each rotatable member which are offset from the compacting means of the adjacent rotatable member in a plane parallel to the axis of the compactor. The rotatable members can be formed of a plural series of wheels or rollers having edges which taper to a center edge. Alternatively, the rotatable members can be formed of a plurality of sheeps foot tampers. The rotatable members can also be formed of an intermix of different types of rollers.
Inventors
- 👤 John B Webb
- 👤 Harley W Burr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:07
CPC Classifications
B; B28; B28B; B28B3/00; B28B3/12; B28B3/123; B28B19/00; B28B19/0092
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
122 words
Apparatus for converting dry cement mix into concrete panels comprising: means for inserting said cement mix into one end of said apparatus; means for compacting said dry cement mix comprising: a plurality of rotatable members tandemly spaced apart along the axis of said apparatus and a generally planar surface movable along the axis of said apparatus; and means for continuously feeding a flexible sheet onto said planar surface; said rotatable members having relative laterally offset surfaces with respect to the surfaces of an adjacent rotatable member in a plane parallel to said axis for directly contacting said mix so as to compact said mix between said rotatable members and said flexible sheet as said mix travels along the axis of said apparatus.
Claim 2
Dependent Claim
122 words
Apparatus for converting dry cement mix into concrete panels comprising: means for inserting said cement mix into one end of said apparatus; means for compacting said dry cement mix comprising: a plurality of rotatable members tandemly spaced apart along the axis of said apparatus and a generally planar surface movable along the axis of said apparatus; and means for continuously feeding a flexible sheet onto said planar surface; said rotatable members having relative laterally offset surfaces with respect to the surfaces of an adjacent rotatable member in a plane parallel to said axis for directly contacting said mix so as to compact said mix between said rotatable members and said flexible sheet as said mix travels along the axis of said apparatus.
Claim 3
Dependent Claim
20 words
Apparatus in accordance with claim 1 wherein each of said rotatable members are formed of a plural series of wheels.
Claim 4
Dependent Claim
20 words
Apparatus in accordance with claim 2 wherein said wheels have edges which are tapered to an outer center edge thereof.
Claim 5
Dependent Claim
19 words
Apparatus in accordance with claim 1 wherein said rotatable members are formed of a plurality of sheeps foot tampers.
Claim 6
Dependent Claim
30 words
Apparatus in accordance with claim 4 wherein said sheeps foot tampers are formed of rows on said surface, with sheeps foot tampers of adjacent rows being offset from each other.
Claim 7
Dependent Claim
22 words
Apparatus in accordance with claim 1 wherein said rotatable members are spring biased so as to form a panel of desired thickness.
Claim 8
Dependent Claim
22 words
Apparatus in accordance with claim 1 wherein said generally planar surface comprises a conveyor belt movable along the axis of said apparatus.
Claim 9
Dependent Claim
29 words
Apparatus in accordance with claim 1 and further comprising a pair of rotatable smoothing rollers in opposing aligned relationship sandwiching therebetween said dry cement mix and said flexible sheet.
Claim 10
Dependent Claim
25 words
Apparatus in accordance with claim 1 wherein each of said rotatable members are formed with plural discrete surface regions constituting said relative laterally offset surfaces.
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) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |