US 5,881,511 AGranted

Concrete building block assembly

OwnerFred Keller, Jr.inventor

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Abstract

A concrete block is provided having half dovetail sections at opposite ends of the block arranged so that when placed together the dovetailed sections on adjoining blocks form a full dovetailed section which is just large enough to be received within a dovetail groove in the central portion of an adjacent identical block. The concrete blocks are provided with upper and lower longitudinal grooves for longitudinal members having the same exterior shape. In one form of the invention one side of the block may be made into a plant receptacle by providing a hollowed out section oriented upwardly. Insulating concrete blocks may also be combined with blocks formed of structural concrete to provide an interlocked wall having a portion of the wall made from insulated concrete material and another portion of the wall made from structural concrete material.

Claims15

Dependent claims

An assembly formed of a plurality of identically constructed, interengaged structural blocks wherein

a. each structural block comprises:
(i) an insulating concrete composition,
(ii) a planar face having four corners, with lateral-side extensions at opposite ends of the structural block each having a half dovetail configuration thereby defining a pair of first and second surfaces, the second surfaces having a generally planar profile and constituting an abutment edge of each side extension for abutment with adjacently located, interengaged structural blocks,
(iii) a central depression extending between the pair of first surfaces and defining between such half dovetail configuration extensions a dovetail groove having a configuration and dimensions adapted to receive and interlock with two oppositely disposed adjacent half dovetail configuration extensions from opposite structural blocks,
(iv) intersecting parallel, horizontal and parallel, vertical grooves extending circumferentially around the block and located beneath the face of the block where the horizontal grooves extend within the first surfaces of the structural block and the vertical grooves extend within the second surfaces of the structural block,
b. the abutment edges of a first structural block each being paired with an abutment edge of an adjacent structural block of the same construction and wherein such abutting pairs of half dovetail configuration side extensions are positioned within the central depressions of adjacent structural blocks forming a first course of blocks, at least second course of blocks formed as said first course of blocks, and parallel horizontal and parallel vertical grooves are opposed when each course of structural blocks is formed and consecutively arranged courses of structural blocks are positioned thereupon forming horizontal and vertical chambers between the structural blocks themselves and the courses of structural blocks forming an interlocking double structural block wall arrangement with interior elongated chambers, and
c. at least portions of the chambers between the structural blocks themselves and the courses of structural blocks are occupied by longitudinally extending lintels which serve to directly align and interengage the structural blocks with adjacently located abutting structural blocks and with courses of structural blocks comprising the wall arrangement.

4 more elements

An assembly formed of a plurality of interengaged, interlocking structural blocks wherein

a. each structural block comprises:
i. an upper, lower, front and rear face, where the rear face comprises laterally extending trapezoidal projections with undercut portions at each end,
ii. a central portion of the rear face being depressed or set back between the laterally extending trapezoidal projections,
iii. the maximum distance between the undercut portions of the trapezoidal projections at each end of the structural block being such that the laterally extended projections of two contiguous structural blocks having substantially similar projections can be accommodated in an interlocking fashion between the undercut portions of the trapezoidal projections of the structural block
iv. a longitudinal groove along both the upper and lower faces adapted to receive longitudinal members to align and interengage each structural block with adjacent structural blocks forming a course of structural blocks, and with similarly and adjacently arranged structural block courses,
b. a course of structural blocks being formed by horizontally interlocked undercut trapezoidal projections of the structural blocks and further aligned by the disposition of longitudinal members in the grooves of said structural blocks, and
c. wherein the front faces of at least some of the blocks are extended outwardly into an upwardly oriented hollow arrangement, comprising a rear section and an outwardly extending section, adapted to contain plant material.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 08/796,802Filed 6 Feb 1997
Granted: 16 Mar 1999
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

E04B 2/08
Using elements having specially-designed means for stabilising the position: by interlocking of projections or inserts with indentations, e.g. of…
E04B 2002/0234
Undercut connections, e.g. using undercut tongues and grooves: angular dovetails
E04B 2002/0247
Separate connectors or inserts, e.g. pegs, pins or keys: strips or bars
E04B 2002/0297
Built-up from layers of building elements: of which the width is less than the wall thickness