Pre-cast concrete construction block with manipulation handles and method of production
OwnerArt Doernerinventor
Life of this patent
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Abstract
A pre-cast concrete construction block and method of producing same including handles at the lateral transverse webs. The handles are ledges cantilevered from said transverse webs adjacent the upper surface in either a 3-web or a 2-web configuration. In another embodiment, the handles are provided by voids within the lateral transverse webs. A method of production of the block includes a T-shaped core adjacent the bottom of a two-part cavity mold so as to facilitate flow of concrete material and completion of the cavity fill prior to set up.
Claims14
1) A pre-cast symmetrical concrete construction block of generally rectangular outline comprising:
- a) an upper and a lower surface,
- b) a pair of opposing generally planar spaced-apart first webs adapted to support a structure and provide an interior and an exterior foundation or wall surface,
- c) a plurality of spaced-apart transverse webs interconnecting said first webs
- i) extending from said lower to said upper surface and
- ii) providing at least one void between said first webs,
- d) wherein a pair of said transverse webs are spaced in from a respective end extremity of said block, and
- e) wherein said pair of said transverse webs include lifting means adjacent said upper surface.
14) A method of production of pre-cast symmetrical concrete construction blocks of generally rectangular outline comprising the steps of providing a two-part cavity mold, including a base portion and a shaped mold portion, with a generally T-shaped core adjacent said base portion, filling said mold, allowing said concrete to partially or completely set up, removing said core laterally from said mold, removing said shaped portion, and removing said setup concrete block from said base for further cure.
Dependencies are inferred from the claim text.