1980-05-12
1981-08-04
Marlo, George J.
Undertaking
29463, A63B 2306
Patent
active
042818303
ABSTRACT:
A Log Roll article of manufacture for use in water recreation. The article is characterized by its fidelity to the properties of a natural log when the article is in use and by its novel and economical construction. The fabricated log is assembled from two substantially identical longitudinal half sections. A bulkhead terminates each end of the half sections. One bulkhead has a closable port through which water and air may pass when the port is open. The log is assembled by cementing two identical half sections together so that the port ends of the half sections are at opposite ends of the log. Water is permitted to enter or leave the log at one port while air is permitted to enter or leave the port at the other end of the log. The filling and emptying of the log with water is thereby facilitated. The log may be provided with longitudinal and circumferential inward directed projections or flanges for the purpose of retarding the rotation of the log and preventing rapid longitudinal displacement of water inside the log. These flanges give the log substantially the same pitch and roll characteristics of a natural log. The outer surface of the log is provided with a tractive surface.
REFERENCES:
patent: 2086134 (1937-07-01), Ludwick
patent: 3193286 (1965-07-01), Sitter
patent: 3845952 (1974-11-01), McKinney
patent: 3887179 (1975-06-01), Klepper et al.
patent: 3953024 (1976-04-01), Brubacher
Johnson Russell L.
Marlo George J.
Mill-Craft Housing Corp.
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