Manufacture of tubular elements for ink jet printers

Details Manufacture of tubular elements for ink jet printers Manufacture of tubular elements for ink jet printers

1986-07-24

1989-05-30

Schor, Kenneth M.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

156423, 156497, 425173, 425546, 65112, B32B 3106

Patent

active

048346373

ABSTRACT:
The apparatus for manufacturing ink jet glass tubes includes a vertical mandrel which receives the tubes one at a time from a feeder and rotates them relative to a pair of gas nozzles for their heating. The tube is heated in an axially limited intermediary zone so as to form an hour-glass shaped profile.
The profile of the tube is scanned by a television camera which generates two signals indicative of the internal diameter. These are compared electronically with a stored indication of the desired diameter and the two nozzles are rotated into an inactive position when this diameter is reached. The tube is cut along a plane so as to make the profile of the nozzle coincident with a reference profile by a device including an optical device connected to a cutting wheel to permit comparison of the hour-glass profile of the element with the reference profile. The severed end of the tube is then lapped and covered with a non-wettable material. The tubular element is bonded within a piezo-electric transducer, by locating the latter partially in a chamber, after fitting it over the tubular element, while a pump draws an epoxy resin through the chamber and into the space between the transducer and the tubular element.

REFERENCES:
patent: 3622292 (1971-11-01), Fleck
patent: 3683212 (1972-08-01), Zoltan
patent: 3955953 (1976-05-01), Hauser
patent: 3985535 (1976-10-01), Bennett et al.
patent: 4308546 (1981-12-01), Halasz
patent: 4366490 (1982-12-01), DeBonte et al.
patent: 4372773 (1983-02-01), Halasz
patent: 4528578 (1985-07-01), Balbo
patent: 4528579 (1985-07-01), Brescia
patent: 4546361 (1985-10-01), Brescia et al.

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