Concrete form structure
AssigneeFoam-Ply, Inc.
InventorsRonald C. Johanson, Bill W. McDonald
Life of this patent
Estimating the term…
Abstract
The specification discloses concrete forms each including a plurality of rectangular panels secured edgewise together by connectors. Each connector includes a pair of half sleeves secured in a pair of grooves in the edges of the panels, and a cupped head of a connector sleeve wedges the half sleeves together to hold the panels in edgewise abutment. A nut screwed on the connector sleeve draws the cupped head into wedging engagement with the half sleeves. Tie rods extend through the connector sleeves. The panels include wood framing having plywood faces and filled with foamed plastic.
Claims14
In a concrete form,
- a plurality of panel members fitting together edgewise,
- a plurality of arcuate segments secured to the edges of the panel members and forming a sleeve when the panel members are fitted edgewise together,
- a first fastening member having a shank portion extending through the sleeve and also having an undercut head at one end thereof for overhanging one end of each of the segments,
- and a second fastener member for drawing the head over the ends of the segments to hold the segments against separation.
In a concrete form member,
- a panel including a wood edge member having a transverse groove,
- and a half-sleeve arcuate segment secured to the edge member in the groove thereof.
In a fastener assembly for a concrete form,
- a pair of arcuate segments having fastener portions,
- a fastener member having an undercut head fitting over one end of each of the segments and a shank extending through a hole formed by the segments,
- and a second fastener member secured to the first fastening member.
In a fastener assembly for a concrete form,
- a pair of fastening members adapted to be secured to the edges of two panels of a concrete form,
- a third fastening member having a head and a threaded shank,
- and a nut on the shank for pressing against the panels to pull the head into engagement with the pair of fastening members,
- the head and the pair of fastening members having interlocking portions.
Dependencies are inferred from the claim text.