US4565043A — Building block with reinforcement and/or position…

Claim 1

Independent Claim 352 words

A plurality of building blocks for compact interfitted stacking in vertically aligned relation during storage and transport and also for interfitted engagement between adjacent courses of blocks when forming a wall incorporating lengthwise staggered adjacent courses of blocks, each of said blocks including rectangular top and bottom parallel faces, parallel front and rear side surfaces and opposite end surfaces, said bottom and top faces including coacting outwardly projecting and opening projections and recesses, respectively, said top face recesses in each of said blocks including a single central recess opening upwardly through the longitudinal mid-portion of the longitudinal edge of the block top face adjoining one side surface of said block and also opening horizontally outwardly of the longitudinally mid-portion of the upper marginal edge of said one side surface and a single pair of end recesses opening upwardly through the terminal end portions of the longitudinal edge of said top face adjoining the other side surface of said block and also opening horizontally outwardly of the adjacent terminal ends of the upper edges of the corresponding side and end surfaces of said blocks, said bottom face projections, on each block, including a single central projection projecting downwardly from the longitudinal mid-portion of the longitudinal edge of the bottom face adjoining said one side surface of said block and a single pair of end projections projecting downwardly from the terminal end portions of the longitudinal edge of said bottom face adjoining the other side surface of said block, said recesses and projections of said blocks being positioned for interfitting engagement with the projections and recesses of vertical adjacent blocks when said blocks are vertically stacked in substantially full vertically registered positions and said front surfaces of said blocks face in the same direction and also for interfitting engagement with the projections and recesses of adjacent blocks when said blocks are disposed in a horizontal course of blocks vertically sandwiched between stacked courses of similar end aligned blocks and adjacent courses of blocks are lengthwise staggered relative to each other and the front surfaces of the blocks of adjacent courses face in opposite directions.

Claim 2

Dependent Claim 352 words

A plurality of building blocks for compact interfitted stacking in vertically aligned relation during storage and transport and also for interfitted engagement between adjacent courses of blocks when forming a wall incorporating lengthwise staggered adjacent courses of blocks, each of said blocks including rectangular top and bottom parallel faces, parallel front and rear side surfaces and opposite end surfaces, said bottom and top faces including coacting outwardly projecting and opening projections and recesses, respectively, said top face recesses in each of said blocks including a single central recess opening upwardly through the longitudinal mid-portion of the longitudinal edge of the block top face adjoining one side surface of said block and also opening horizontally outwardly of the longitudinally mid-portion of the upper marginal edge of said one side surface and a single pair of end recesses opening upwardly through the terminal end portions of the longitudinal edge of said top face adjoining the other side surface of said block and also opening horizontally outwardly of the adjacent terminal ends of the upper edges of the corresponding side and end surfaces of said blocks, said bottom face projections, on each block, including a single central projection projecting downwardly from the longitudinal mid-portion of the longitudinal edge of the bottom face adjoining said one side surface of said block and a single pair of end projections projecting downwardly from the terminal end portions of the longitudinal edge of said bottom face adjoining the other side surface of said block, said recesses and projections of said blocks being positioned for interfitting engagement with the projections and recesses of vertical adjacent blocks when said blocks are vertically stacked in substantially full vertically registered positions and said front surfaces of said blocks face in the same direction and also for interfitting engagement with the projections and recesses of adjacent blocks when said blocks are disposed in a horizontal course of blocks vertically sandwiched between stacked courses of similar end aligned blocks and adjacent courses of blocks are lengthwise staggered relative to each other and the front surfaces of the blocks of adjacent courses face in opposite directions.

Claim 3

Dependent Claim 41 words

The building block of claim 1 wherein the extent of those longitudinal midportion block recesses and projections extending longitudinally of said blocks is slightly greater than twice the extent of those block end recesses and projections extending longitudinally of said blocks.

Claim 4

Dependent Claim 33 words

The building blocks of claim 1 wherein each block includes a plurality of vertical openings formed therethrough and at least one of said faces includes seal means extending about each of said openings.

Claim 5

Dependent Claim 82 words

The building blocks of claim 1 including a lintel block of more than twice the length of each building block, said lintel block being generally U-shaped in transverse cross section and including internal reinforcing, said block including an undersurface downwardly from which opposite side longitudinally staggered projections extend, said lintel block being positionable over a course of a plurality of end aligned building blocks with the projections of said lintel block downwardly received in the recesses of said course of building blocks.

Claim 6

Dependent Claim 36 words

The building blocks of claim 1 wherein each building block includes longitudinally spaced vertical openings formed therethrough defining end walls extending between remote side surfaces of said block, said end walls having midheight openings formed therethrough.

Claim 7

Dependent Claim 23 words

The building blocks of claim 5 wherein each building blocks includes internal reinforcing and portions of said internal reinforcing project into said openings.

Claim 8

Dependent Claim 29 words

The building blocks of claim 6 wherein other portions of said internal reinforcing project through and outwardly beyond one of said front and rear surfaces and define hook portions.

Claim 9

Dependent Claim 333 words

A plurality of building blocks for compact interfitted stacking during storage and transport and also for interfitted engagement when erected in a wall construction with the blocks of vertically adjacent courses of blocks staggered lengthwise relative to each other, said blocks being substantially parallelopiped in shape and including generally horizontal top and bottom faces, parallel opposite side surfaces and end surfaces extending between corresponding ends of said faces and side surfaces, said blocks each including a single pair, only, of opposite end first corner recesses formed therein opening outwardly through one of said faces at the corner junctures thereof with the corresponding end surfaces and one of said side surfaces and also opening outwardly through said one side and end surfaces, said blocks each also including a single pair, only, of first corner projections projecting outwardly from the corner portions of said other face corresponding to said corner portions of said one face and snugly receivable in recesses corresponding to the first mentioned recesses formed in an adjacent block with which the first mentioned block is vertically superposed, the longitudinal midportion of one longitudinal margin of each of said one faces including a single second recess formed therein opening outwardly through said one face and the other of said side surfaces, the longitudinal midportion of said other face of each block including a single projection projecting outwardly therefrom adjacent said other side surfaces, said second projections being receivable in said second recess formed in an adjacent superposed block, said second recess and projection extending longitudinally of each block an extent equal to at least twice the longitudinal extent of said first projections and recesses longitudinally of said blocks, whereby opposing first projections at adjacent ends of a pair of aligned blocks staggered relative to a lower block disposed therebeneath may be received in the second recess of said lower block and said second projection of each upper block may be received in opposing corner recesses of a pair of end aligned lower blocks.

Claim 10

Dependent Claim 333 words

A plurality of building blocks for compact interfitted stacking during storage and transport and also for interfitted engagement when erected in a wall construction with the blocks of vertically adjacent courses of blocks staggered lengthwise relative to each other, said blocks being substantially parallelopiped in shape and including generally horizontal top and bottom faces, parallel opposite side surfaces and end surfaces extending between corresponding ends of said faces and side surfaces, said blocks each including a single pair, only, of opposite end first corner recesses formed therein opening outwardly through one of said faces at the corner junctures thereof with the corresponding end surfaces and one of said side surfaces and also opening outwardly through said one side and end surfaces, said blocks each also including a single pair, only, of first corner projections projecting outwardly from the corner portions of said other face corresponding to said corner portions of said one face and snugly receivable in recesses corresponding to the first mentioned recesses formed in an adjacent block with which the first mentioned block is vertically superposed, the longitudinal midportion of one longitudinal margin of each of said one faces including a single second recess formed therein opening outwardly through said one face and the other of said side surfaces, the longitudinal midportion of said other face of each block including a single projection projecting outwardly therefrom adjacent said other side surfaces, said second projections being receivable in said second recess formed in an adjacent superposed block, said second recess and projection extending longitudinally of each block an extent equal to at least twice the longitudinal extent of said first projections and recesses longitudinally of said blocks, whereby opposing first projections at adjacent ends of a pair of aligned blocks staggered relative to a lower block disposed therebeneath may be received in the second recess of said lower block and said second projection of each upper block may be received in opposing corner recesses of a pair of end aligned lower blocks.

Claim 11

Dependent Claim 45 words

The building blocks of claim 8 wherein the lower ends of said vertical reinforcing members project slightly endwise outwardly from said projections, the outwardly projecting ends of said reinforcing members being weakened whereby they may be broken from the upper portions of said reinforcing members.

Claim 12

Dependent Claim 19 words

The building blocks of claim 8 wherein one of the inner and outer surfaces of said projections are bevelled.

Claim 13

Dependent Claim 27 words

The building blocks of claim 8 wherein each block includes vertical reinforcing members extending between corresponding corner recesses and projections and between said second recess and projection.

Claim 14

Dependent Claim 19 words

The building blocks of claim 11 wherein said vertical reinforcing members project slightly endwise outwardly from the corresponding projections.

Claim 15

Dependent Claim 45 words

The building blocks of claim 12 wherein the ends of said projections opening into said recesses include transverse bearing plates anchored relative thereto and recessed in the bottom surfaces of said recesses for engagement by the outwardly projecting ends of vertical reinforcing members disposed thereabove.

Claim 16

Dependent Claim 14 words

The building blocks of claim 11 wherein said vertically reinforcing members comprise rod-like members.

Claim 17

Dependent Claim 48 words

The building blocks of claim 11 wherein said vertically reinforcing members comprise tubular members and the upper ends of said tubular members include bell ends and the lower ends of tubular members project slightly outwardly from said projections and define spigot ends telescopically engageable with said bell ends.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1989-01-20	1989-07-22	1990-01-21	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1993-01-20	1993-07-22	1994-01-21	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1997-01-20	1997-07-22	1998-01-21	$7700.00	Window Closed / Lapsed

Building block with reinforcement and/or positioning lugs and recesses

Abstract

Inventors

Bibliographic Details

Claims Analysis

References Cited (Backward Citations)

USPTO Annuity & Maintenance Windows

Assigned Categories & Tags

Assign Category Tag