Seamless pipeline sphere and method of manufacture

Details Seamless pipeline sphere and method of manufacture Seamless pipeline sphere and method of manufacture

2006-08-08

2006-08-08

Chin, Randall (Department: 1744)

Brushing, scrubbing, and general cleaning

Implements

Pipe, tube, or conduit cleaner

C073S001180

Reexamination Certificate

active

07086113

ABSTRACT:
The invention is generally directed to a pipeline sphere, and more specifically a seamless pipeline sphere wherein said sphere presents a flexible, seamless outer layer surrounding an inflatable inner bladder portion which itself defines a hollow chamber. The outer layer and the inner bladder portion contain apertures which are aligned to form a channel connecting the hollow chamber to the outside environment. A weighted material may be added to the pipeline sphere, if desired.

REFERENCES:
patent: 2745231 (1956-05-01), Prince
patent: 2951255 (1960-09-01), Ver Nooy
patent: 3011197 (1961-12-01), Nehse et al.
patent: 3890665 (1975-06-01), Richardson
patent: 5105498 (1992-04-01), Dinkelacker
patent: 6272713 (2001-08-01), Lotwin
patent: 6500271 (2002-12-01), Moore et al.
patent: 2 021 480 (1979-12-01), None
patent: 2 217 423 (1989-10-01), None
Commercial product believed to be on sale at least 1 year prior to May 21, 2003. Product shown on attached Internet excerpt for S.U.N. Engineering, Inc. Super Sphere.

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