# US 5,341,618 A · Non-rectangular block and wall

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- Number: US 5,341,618 A
- Document ID: US5341618A
- Status: Granted
- Kind: A
- Application number: 07/848,379
- Filed: 1992-03-09
- Granted: 1994-08-30
- Earliest claimed: 1992-03-09
- Inventors: Cecil F. Schaaf; Craig R. Schaaf
- Web page: https://patentgrep.com/patent/US5341618A

## CPC

- E04C 1/395: {for claustra, fences, planting walls, e.g. sound-absorbing (pots for vertical horticulture A01G9/022)}
- E02D 29/025: {made up of similar modular elements stacked without mortar}
- E04B 2002/0206: {of rectangular shape}
- E04C: STRUCTURAL ELEMENTS; BUILDING MATERIALS (for bridges E01D; specially designed for insulation or other protection E04B; elements used as building aids E04G; for mining E21; for tunnels E21D; structural elements with broader range of application than for building engineering F16, particularly F16S)
- E02D: FOUNDATIONS; EXCAVATIONS; EMBANKMENTS (specially adapted for hydraulic engineering E02B); UNDERGROUND OR UNDERWATER STRUCTURES {(tunnels, tunnelling, mining E21)}
- E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001})

## Abstract

This invention deals with certain specific building blocks that can be used to build stable retaining walls and stable decorative walls having novel features such as convenience in manufacturing, handling, and using.

## Claims

### Claim 1

A building block, wherein said building block has a cross axis, a core axis, and a long axis;
said block providing a back surface, a front surface, two essentially identical side walls, and two essentially identical end surfaces, a center from back to front of the block, a center from one end surface to the other end surface of the block, and a center from one side wall to the other side wall of the block;
said cross axis located through the center of the building block from back to front;
said core axis being located through the center of the building block from one end surface to the other end surface;
said long axis being located through the center of one side wall of the block to the other side wall of the block, and perpendicular to a plane formed by the cross axis and the core axis;
said block having a large center opening therethrough aligned with and parallel to the core axis of the block;
said back surface being perpendicular to a plane formed by the cross axis and the core axis and having three segments comprised of an open center segment, and two lateral segments;
said open center segment being a continuum of the large center opening through the back surface;
said front surface having three segments, a raised center segment having a less dense surface than the interior of the block and two lateral segments;
each said side wall having located essentially centered therein from front to back, a channel of predetermined width and depth, each said channel being aligned with and parallel to the core axis of the block, the length of each said channel being equal to the length of the back surface of the block.

### Claim 2

A wall constructed in whole or in part from building blocks, wherein each building block has a cross axis, a core axis, and a long axis;
said building block providing a back surface, a front surface, two essentially identical side walls, and two essentially identical end surfaces, a center from back to front of the block, a center from one end surface to the other end surface of the block, and a center from one side wall to the other side wall of the block;
said cross axis located through the center of the building block from back to front;
said core axis being located through the center of the building block from one end surface to the other end surface;
said long axis being located through the center of one side wall of the block to the other side wall of the block, and perpendicular to a plane formed by the cross axis and the core axis;
said block having a large center opening therethrough aligned with and parallel to the core axis of the block;
said back surface being perpendicular to a plane formed by the cross axis and the core axis and having three segments comprised of an open center segment, and two lateral segments;
said open center segment being a continuum of the large center opening through the back surface;
said front surface having three segments, a raised center segment having a less dense surface than the interior of the block and two lateral segments;
each said side wall having located essentially centered therein from front to back, a channel of predetermined width and depth, each said channel being aligned with and parallel to the core axis of the block, the length of each said channel being equal to the length of the back surface of the block.