Back to results
US 4,726,567 AGranted
Masonry fence system
OwnerHarold H. Greenberginventor
Life of this patent
Estimating the term…
Abstract
A masonry fence is disclosed comprising a plurality of courses of masonry blocks mounted on a footer. The horizontal joint between adjacent courses is provided with a mortared joint while the vertical joint between adjacent blocks are interlocking without mortar. Post-tensioning rods are positioned at predetermined intervals along the fence and are imbedded at one end in a footer and extend upwardly through the vertical voids in the respective blocks to terminate in the next to highest course of blocks. The rods are post-tensioned and the highest course of block is mounted on top of the fence to enclose the top of the post-tensioning rods.
Claims13
A masonry fence comprising:
- (a) a footer;
- (b) a plurality of courses of masonry blocks mounted on said footer, each of said blocks having vertical mortarless voids therein, the horizontal joints between adjacent courses being mortared, the vertical joints between adjacent blocks being interlocking without mortar;
- (c) a plurality of post-tensioning rods positioned at predetermined intervals along said fence, each secured at one end to said footer and extending upwardly therefrom through said vertical mortarless voids to an upper end;
- (d) selected ones of said masonry blocks in each course being open ended to permit said blocks to be placed on top of a lower course without threading said block over a post-tensioning rod;
- and
- (e) means secured to each of said upper ends for tensioning a corresponding post-tensioning rod.
3 more elements
A masonry fence comprising:
- (a) a footer;
- (b) a plurality of courses of masonry blocks mounted on said footer, each of said blocks having vertical mortarless voids therein, the horizontal joints between adjacent courses being mortared, the vertical joints between adjacent blocks being interlocking without mortar;
- (c) a plurality of post-tensioning rods positioned at predetermined intervals along said fence, each secured at one end to said footer and extending upwardly therefrom through said vertical mortarless voids and terminating at an upper end below the highest course of block and above the second highest course of block;
- and
- (d) means secured to each of said upper ends for tensioning a corresponding post-tensioning rod.
2 more elements
A masonry fence comprising:
- (a) a footer;
- (b) a plurality of courses of masonry blocks mounted on said footer, each of said blocks having vertical mortarless voids therein, the horizontal joints between adjacent courses being mortared, the vertical joints between adjacent blocks being interlocking without mortar;
- (c) a plurality of post-tensioning rods positioned at predetermined intervals along said fence, each secured at one end to said footer and extending upwardly therefrom through said vertical mortarless voids and terminating at an upper end below the highest course of block and above the second highest course of block;
- (d) selected ones of said masonry blocks in each course being open ended to permit said blocks to be placed on top of a lower course without threading said block over a post-tensioning rod;
- and
- (e) means secured to each of said upper ends for tensioning a corresponding post-tensioning rod.
3 more elements
A masonry fence comprising:
- (a) a footer;
- (b) a plurality of courses of masonry blocks mounted on said footer, each of said blocks having vertical mortarless voids therein, the vertical joints between adjacent blocks being interlocking without mortar, the horizontal joints between courses being without mortar;
- (c) a plurality of post-tensioning rods positioned at predetermined intervals along said fence, each secured at one end to said footer and extending upwardly therefrom through said vertical mortarless voids to an upper end;
- (d) said post-tensioning rods, when tensioned, applying compressive force to some, but not all, said masonry blocks, all blocks in the lowest course of said fence being under compressive force from said post-tensioning rods;
- (e) binding means positioned in all horizontal joints between masonry blocks not under compressive force from said post-tensioning rods;
- and
- (f) means secured to each of said upper ends for tensioning a corresponding post-tensioning rod.
4 more elements
The method of forming a masonry fence having a plurality of courses of masonry blocks, comprising the steps of:
- (a) pouring a concrete footer;
- (b) laying a first course of masonry blocks on said footer while said concrete is plastic;
- (c) inserting anchors, at predetermined intervals along said footer, through the masonry blocks of said first course and into said plastic cement;
- (d) attaching post-tensioning rods to said anchors;
- (e) laying a plurality of courses of masonry blocks with horizontal mortar joints and mortarless interlocking vertical joints;
- (f) positioning a nut and washer on each post-tensioning rod;
- and
- (g) applying a post-tensioning force to each of said post-tensioning rods by tightening the corresponding nuts.
5 more elements
The method of forming a masonry fence having a plurality of cources of masonry blocks, comprising the steps of:
- (a) pouring a footer;
- (b) securing anchors at predetermined intervals along said footer, said predetermined intervals selected to provide a compressive force exerted by post-tensioning rods on each block in the lowest course of said fence;
- (c) attaching post-tensioning rods to said anchors;
- (d) laying a plurality of courses of masonry blocks with horizontal mortar joints and mortarless interlocking vertical joints;
- (e) positioning a nut and washer on each post-tensioning rod;
- (f) applying a post-tensioning force to each of said post-tensioning rods by tightening the corresponding nuts;
- and
- (g) laying a top course of closed top masonry block using mortared horizontal and mortared vertical joints.
5 more elements
Dependencies are inferred from the claim text.