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US 4,142,343 AGranted
Post apparatus and methods of constructing and utilizing same
OwnerRonald H. Traftoninventor
Life of this patent
Estimating the term…
Abstract
A maintenance-free anodized aluminum post having longitudinal grooves therein for mating with complementary brackets. The post is hollow and has a constant wall thickness. Each groove has a curved portion and a flat portion. The brackets may be moved in the grooves adjustably, and may be locked to the post without causing any deformation of the post or bracket.
Claims8
A post apparatus comprising:
- an elongated support member having a major longitudinal central axis and an outer periphery which includes at least one groove therein;
- said elongated support member having a tubular configuration which has a substantially constant wall thickness;
- said groove being disposed substantially parallel to said major longitudinal central axis of said elongated support member;
- said groove having an arcuate side wall portion and a substantially flat side wall portion;
- said substantially flat side wall portion of said groove being disposed in a flat plane which is oriented askew with respect to said major longitudinal central axis of said elongated support member;
- said groove including a flat base portion which is disposed in a flat plane that is oriented substantially perpendicular to a radius emanating from said major longitudinal central axis of said elongated support member;
- and
- none of said side wall portions of said groove of said elongated support member is disposed perpendicular to said flat plane within which said flat base portion of said groove is disposed.
5 more elements
Dependencies are inferred from the claim text.