Patent US4288569A successfully refreshed from Google Patents.
Patent US4026086A successfully refreshed from Google Patents.
US4026086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building brick
Assignee: Individual
•
Filing: 1975-07-18
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Granted: 1977-05-31
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Expires: 1995-07-18
Abstract
Abstract A new building brick for use in the construction of buildings is disclosed. The brick is provided with projecting members and indentations on opposite surfaces. The projecting members and indentations provide resistance to lateral movement of the bricks. The bricks are held together in adjacent tiers by means of magnetic forces. The magnetic materials are located around the periphery of the projecting members and indentations or on the tops of the projecting members and the innermost portion of the indentation. In another embodiment, the bricks may be partially cured and held together by means of applying water to the surfaces to be joined and applying heat.
Inventors
- 👤 David T. Langley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:00
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/02; E04B2/04; E04B2/06; H; H01; H01F; H01F7/00; H01F7/02; H01F7/0231; H01F7/0252; E04B2002/0202; E04B2002/0204; E04B2002/0215; E04B2002/0217; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10S52/00; Y10S52/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
118 words
A building brick used for constructing buildings, comprising: a clay building brick provided with two projecting locking members on a first surface and two locking indentations on a second surface opposite said first surface whereby said projecting locking members on a building brick in a first tier of bricks are adapted to fit into the indentations of one or more bricks in an adjacent tier of bricks; and magnetic particles distributed inside said bricks underneath each of said projecting locking members and each of said locking indentations, and the magnetic particles underneath at least one of each of two adjacent bricks surfaces being permanently magnetized in order to provide a magnetic attraction force between bricks in adjacent tiers.
Claim 2
Dependent Claim
118 words
A building brick used for constructing buildings, comprising: a clay building brick provided with two projecting locking members on a first surface and two locking indentations on a second surface opposite said first surface whereby said projecting locking members on a building brick in a first tier of bricks are adapted to fit into the indentations of one or more bricks in an adjacent tier of bricks; and magnetic particles distributed inside said bricks underneath each of said projecting locking members and each of said locking indentations, and the magnetic particles underneath at least one of each of two adjacent bricks surfaces being permanently magnetized in order to provide a magnetic attraction force between bricks in adjacent tiers.
Claim 3
Dependent Claim
125 words
A building brick used for constructing buildings, comprising: a clay building brick provided wth two projecting locking members on a first surface and two locking indentations on a second surface opposite said first surface whereby said projecting locking members on a building brick in a first tier of bricks are adapted to fit into the indentations of one or more bricks in an adjacent tier of bricks; said projecting locking members and said projecting locking indentations being triangular in cross-section; and each brick being provided with at least one threaded opening on each of two opposite surfaces for receiving threaded cylinders of magnetic material, at least one of which is permanently magnetized, in order to provide a magnetic attraction force between bricks in adjacent tiers.
Claim 4
Dependent Claim
125 words
A building brick used for constructing buildings, comprising: a clay building brick provided wth two projecting locking members on a first surface and two locking indentations on a second surface opposite said first surface whereby said projecting locking members on a building brick in a first tier of bricks are adapted to fit into the indentations of one or more bricks in an adjacent tier of bricks; said projecting locking members and said projecting locking indentations being triangular in cross-section; and each brick being provided with at least one threaded opening on each of two opposite surfaces for receiving threaded cylinders of magnetic material, at least one of which is permanently magnetized, in order to provide a magnetic attraction force between bricks in adjacent tiers.
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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) | 1980-05-30 | 1980-11-29 | 1981-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-30 | 1984-11-29 | 1985-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-30 | 1988-11-29 | 1989-05-31 | $7700.00 | Window Closed / Lapsed |