Patent ID: 6065265
Filing Date: 2000-05-23
Classification: E04B

Abstract:
An interlocking building block for use in constructing mortarless walls, the building block havinga first face shell in spaced parallel relationship with a second face shell, said first and second face shells defining opposed inner surfaces for the block, and having a predetermined height;at least one transversely-disposed bridge portion extending between said first and second face shells, said transversely-disposed bridge portion having at least one projection integrally formed in an operatively-upper surface thereof and extending above said predetermined height and at least one corresponding recess integrally formed in an operatively-lower surface thereof and adapted to receive a corresponding number of projections of an underlying interlocking building block; anda transverse end portion defining an operatively outer surface closing one end of the block between the said first and second face shells and longitudinally-spaced from a proximate one of said transversely-disposed bridge portions to define a grouting cavity therebetween, said transverse end portion having at least one projection integrally formed in an operatively-upper surface thereof and extending above said predetermined height and having at least one corresponding recess integrally formed in an operatively-lower surface thereof and adapted to receive a corresponding number of projections of an underlying interlocking building block oriented in parallel to said block;respective upwardly-extending channels being formed in said opposed inner surfaces between said transverse end portion and a proximate one of said transversely-disposed bridge portions, said channels being adapted to receive and locate corresponding projections of an underlying interlocking building block oriented orthogonally to said block, said channels further defining a reduced wall thickness in said first and second face shells adapted to be partially broken and to receive a reinforcement bar therethrough for reinforcing grout received in said grouting cavity.