Maro Publications


Patents with Abstracts

from 9/25/2012

Maro Topics


Patent Abstracts

4. 8,397,461 
Snap fit pultrusion for housing elements 

The construction of shelters for housing is older than civilization itself, and the development of materials and structures to aid in such construction is equally old. In the industrialized world, construction materials and techniques have reached a very high level of maturity. However, housing is increasingly expensive and there is a continuing need for improved materials that are less expensive to manufacture and utilize in constructing structures, that are structurally stronger and less vulnerable to degradation from exposure and use, and that provide suitable physical and aesthetic conditions for occupancy. Additionally, there is a need for lightweight and easily transportable structural elements for rapid erection of remote emergency shelters, for low cost housing elements suitable for use by the peoples of industrializing countries, and for rapid deployment of shelters for military personnel.

As will be appreciated by those with skill in the art, it is known to provide prefabricated modular units for the construction of building structures. Further, it is known to provide pultrusion products for use as structural elements in building construction. Pultruded products have numerous advantages over conventional building materials. Relative to structural steel and aluminum, and to conventional building lumber, pultruded fiber reinforced thermoplastics are stronger, lighter, more corrosion and rot resistant, are less electrically conductive, and have greater dimensional stability

The snap fit pultrusion for housing elements of the present invention provides snap-lock housing technology for a flexible system of shelter construction using composite materials. These shelters can be assembled on site from sections of snap-lock panels--flooring, wall and roofing--to form a complete housing, office, or storage unit. Shelters formed using the inventive technology are strong, fast to assemble and are very protective from environmental extremes. The construction is frameless and needs only a footing or simple grading. The shelter system can be made completely livable with built-in utilities and pre-decorated surfaces.

Browning and Dombroski developed  snap fit pultrusion housing elements for joining structurally insulated panels suitable for housing and shelter construction. The housing elements include a pultruded panel body member having at least one edge, and a pultruded snap lock fitting on the edge adapted for fastenerless engagement with a complementary fitting on an adjacent panel body member.  (RDC 4/16/2013)

3. 8,302,363 
Composite interlocking structure
Johnson of Ebert Composites Corporation, California, developd an interlocking support structure consisting of an array of rectangular cells arranged in at least one layer, each cell having four sides, opposite ends, and eight corners, and sharing common sides and corners with any adjacent cells.  The cells are formed by sets of spaced, parallel elongate members extending in x, y and z directions, with the x, y and z members interlocked with one another at the corners of the cells to form interlocking corner joints.  The cells are fiber reinforced plastics forme by putrusion.  Each structural member is hollow at least in the vicinity of each corner joint with which it intersects, and communicates with the other structural members at the respective corner joints. A plug of hardened, initially flowable material fills the hollow interior of the interlocking structural members at least at the corner joints and adheres to the internal surfaces of the members at the corner joints to secure the members together at each corner in the rectangular array. (RDC 11/9/2012)

2. 8,272,190 
Method of fabricating building wall panels
Schiffmann and Schiffmann of Composite Panel Systems, LLC, Wisconsin, fabricated wall panels by  pultruding  inner and outer layers, and spaced reinforcing webs and/or foam extending between the inner and outer layers with studs extending inwardly from the inner layer, away from the outer layer.  The so-continuously pultruded wall panel optionally has male and a female edges.  The wall panel is periodically cut for wall panel height, thereby creating an ongoing stream of cut wall panels.  The panels are advanced through a corner index station, and indexed at right angles while maintaining orientation of the panels.  The wall panels leave the indexing station edge-to-edge.  Resin is applied to facing edges of adjacent wall panels. Adjacent wall panels are joined to each other at the facing edges, to make a generally continuous wall panel.  The so-joined wall panel is cut to desired lengths.  The resulting wall panel can provide tough, water-proof, otherwise weather-proof, building systems and buildings, without structural use of concrete except in floor slabs. (RDC

1. 8,272,188 
Composite laminate structure
Johnson et al of Ebert Composites Corporation, California, developed sandwich structures with outside skins of a polymer matrix composite and an internal core of either foam, end-grain balsa wood, or honeycomb and Z-axis fiber reinforcement through the composite laminate and normal to the plane of the polymer matrix composite skins using pultrusion. (RDC 9/25/2012)


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(RDC 6/5/2012)


Roger D. Corneliussen

Maro Polymer Links
Tel: 610 363 9920
Fax: 610 363 9921


Copyright 2012 by Roger D. Corneliussen.
No part of this transmission is to be duplicated in any manner or forwarded by electronic mail without the express written permission of Roger D. Corneliussen

** Date of latest addition; date of first entry is 9/25/2012.