US3733675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of utilizing junk cars to produce building blocks
Assignee: Individual
•
Filing: 1971-08-16
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Granted: 1973-05-22
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Expires: 1991-08-16
Abstract
Abstract The method of compressing discarded cars into geometrically complementary shapes and coating the shapes with an air and water impervious material. The shapes can then be used for paving revetments, building retaining walls, or piled up to form dikes or jetties.
Inventors
- 👤 W Diederich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:37
CPC Classifications
E; E04; E04C; E04C1/00; E04C1/40; E01; E01C; E01C5/00; E01C5/22; E02; E02B; E02B3/00; E02B3/04; E02B3/12; E02B3/14; E02D; E02D17/00; E02D17/18; E02D29/00; E02D29/02; E02D29/025; E02D5/00; E04B; E04B2/00; E04B2/02; E04B2002/0202; E04B2002/0204; E04B2002/0206; E04B2002/0256; E04B2002/0286; Y; Y10; Y10S; Y10S100/00; Y10S100/901; Y10S52/00; Y10S52/09; Y10T; Y10T29/00; Y10T29/49; Y10T29/49751; Y10T29/49753
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
74 words
A method for converting a junk car containing some amounts of the original nonmetallic materials therein into an environmentally stable unitary-shaped construction block having a relatively high tensile and compressive strength and a substantially smaller volume than the original volume of said junk car, said method consisting of compressing said junk car at ambient temperature into a block and then coating said block with a continuous layer of an air and moisture impervious material.
Claim 2
Independent Claim
74 words
A method for converting a junk car containing some amounts of the original nonmetallic materials therein into an environmentally stable unitary-shaped construction block having a relatively high tensile and compressive strength and a substantially smaller volume than the original volume of said junk car, said method consisting of compressing said junk car at ambient temperature into a block and then coating said block with a continuous layer of an air and moisture impervious material.
Claim 3
Independent Claim
104 words
The method of converting junk cars which contain some amounts of the original nonmetallic materials therein into environmentally stable unitary-shaped construction blocks without removal of the nonmetallic materials, said method consisting of the steps of supplying junk cars from a junk yard, separately compressing each junk car at ambient temperature into a single block of unitary shape sustaining construction having substantial tensile and compressive strength and having substantially less volume than the original volume of the junk car, and coating the block with a continuous layer of an air and moisture impervious material to enable use of the block in any environment without damage.
Claim 4
Independent Claim
104 words
The method of converting junk cars which contain some amounts of the original nonmetallic materials therein into environmentally stable unitary-shaped construction blocks without removal of the nonmetallic materials, said method consisting of the steps of supplying junk cars from a junk yard, separately compressing each junk car at ambient temperature into a single block of unitary shape sustaining construction having substantial tensile and compressive strength and having substantially less volume than the original volume of the junk car, and coating the block with a continuous layer of an air and moisture impervious material to enable use of the block in any environment without damage.
Claim 5
Dependent Claim
100 words
The method of defined in claim 2 wherein the compressing step reduces the volume of the junk car to a block having a volume of approximately 7 cubic feet with an average weight of approximately 1 ton for use of the blocks as riprap, said compressing step aLso forming substantially parallel planar top and bottom surfaces on the block and edge surfaces extending therebetween with the edge surfaces including projections and recesses for interengagement with adjacent identical blocks, said coating step including the dipping of the block into a bath of material to provide a coating of substantially uniform thickness.
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) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |