Lubrication – Lubricators – Belt – cable – chain or conveyor
Patent
1976-10-20
1978-08-22
Brown, David H.
Lubrication
Lubricators
Belt, cable, chain or conveyor
118408, 1510416, F16N 900
Patent
active
041082796
ABSTRACT:
A dispensing device is pulled through a conduit while a coating material, such as a lubricant, is forcibly dispensed from the dispensing device and spread along the interior surface of the conduit. The dispensing device has an elongate tubular body with a hollow interior portion adapted for containing a supply of the coating material and having an opening in the body through which the coating material is dispensed. An elongate connector extends axially into the hollow interior of the elongate body through the leading end thereof and is connected to a piston located inside the hollow body. When the dispensing device encounters a frictional resistance as it is pulled through the conduit, the piston is pulled forwardly in the hollow body to forcibly dispense coating material from the dispenser and the dispenser thereafter spreads the coating material along the wall of the conduit.
REFERENCES:
patent: 2362881 (1944-11-01), Canney et al.
patent: 3055339 (1962-09-01), Pistole et al.
patent: 3438461 (1969-04-01), MacPherson
patent: 3858687 (1975-01-01), Masarky et al.
patent: 3885521 (1975-05-01), VON Arx
Brown David H.
Thomas Industries of Tennessee Inc.
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