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Multiple-shot method of molding plastic products
What is claimed is: 1. An improved method for manufacture of a unitary molded product of multiple plastic materials said product including a first material forming a ...
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Improvement in ceiling blocks
I claim: 1. Ceiling block construction for an in situ assembly comprising bottom parts and top parts, said bottom parts being precast from concrete or like material, ...
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Fast-hardening hydraulic cement mass and surfacing method using the mass
What is claimed is: 1. A rigid tube coated with a hydraulically set concrete mixture having a small tendency to cracking in the set condition, the concrete mixture ...
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Floor-pressure hold anchor
What is claimed is: 1. In combination, a chain and a hold down anchor for the chain and comprising a substantially L-shaped metal bar one arm of which is adapted to be ...
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Ornamental plastic shutter
What is claimed is: 1. An integrally molded one-piece plastic shutter including marginal frame portions of generally U-shaped configuration providing peripheral front ...
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Method for prestressing a structural member
The invention having been described, what is claimed is: 1. A method of producing a prestressed structural member from a body of hardenable material, such as concrete, ...
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Rebar bolster for solid grouted walls
My invention eliminates the need for specialty block to accommodate rebar for solid grouted block walls. In addition, it is extremely easy to provide various size rebar ...
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Rebar splicing and anchoring
I claim: 1. A rebar splice, for splicing two rebars, both of which are embedded in concrete, each being a long bar having rib means for impeding turning in and pull-out ...
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Multistory slab construction
The present invention provides an improvement to the efficiency of constructing a multistory structure having poured horizontal concrete slabs of length and width ...
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Energy dissipating connector
OF THE PREFERRED EMBODIMENT The detailed description set forth below in connection with the appended drawings is intended as a description of the presently preferred ...
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