Sweeper

Details Sweeper Sweeper

1990-08-07

1992-10-27

Hornsby, Harvey C.

Brushing, scrubbing, and general cleaning

Implements

Pipe, tube, or conduit cleaner

1523608, 134 8, 29 81021, 29 8111, B08B 904

Patent

active

051578034

ABSTRACT:
A sweeper for sweeping the interior space of a pipe by passing the sweeper through the pipe to remove scale from the inner surface of the pipe. The sweeper includes a body made of a resilient material, such as foamed polyurethane, and a plurality of pins projecting radially outward from the body. Each of the pins includes a head portion located outward the body and stem portion for holding the pin on the body. The head portion of the pin includes a plurality of fingers having tip end surfaces which are inclined in opposite directions relative to the direction of movement of the sweeper in the pipe.

REFERENCES:
patent: 862434 (1907-08-01), Bartel
patent: 1475431 (1923-11-01), Evans
patent: 4244073 (1981-01-01), Sagawa
patent: 4451093 (1984-05-01), Perez
patent: 4493126 (1985-01-01), Uy
patent: 4702525 (1987-10-01), Sollami et al.
patent: 4876761 (1989-10-01), Sagawa

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