Back to results
US 5,222,344 AGranted
Pole structure
OwnerDavid W. Johnsoninventor
Life of this patent
Estimating the term…
Abstract
A pole for supporting utility lines and the like is made of pultruded composites. In one embodiment, an interior lattice of composite members forms an elongated open-celled beam which is enclosed in a preferably composite outer skin. In another embodiment pole side panels are pultruded to define interlocking edges so they can be laid parallel to define an enclosure with the edges interfitting.
Claims7
A pole structure comprising:
- (a) a plurality of elongated elements;
- (b) some of said elongated elements being longitudinally extended elements extended in a longitudinal direction and others of said elongated elements being transversely extended beams extending transversely of said longitudinal direction;
- (c) said longitudinally extended elements and said transversely extended elements defining a plurality of interlocking joints at which said elements intersect and interlock such that said cellular beam is rigidified and maintained integral;
- and,
- (d) a rigid skin encircling said beam to rigidify said beam.
2 more elements
Dependencies are inferred from the claim text.