Apparatus for forming a groove in a glass tube

Details Apparatus for forming a groove in a glass tube Apparatus for forming a groove in a glass tube

1990-11-14

1991-05-21

Lindsay, Robert L.

Glass manufacturing

Glassworking or preform by or with reheating means

Mechanical means to reshape preform

65109, 65283, 65279, 65294, C03B 2704

Patent

active

050172085

ABSTRACT:
Apparatus for forming a groove in a glass tube without contacting the glass tube in the groove region. The apparatus includes a pair of chucks for holding opposite ends of the glass tube. The chucks are coupled to a motor for rotating the glass tube about its longitudinal axis. The apparatus further includes one or more torches for noncontact heating of the groove region of the glass tube sufficiently to soften the glass tube in the groove region. The chucks which hold the glass tube are axially movable for stretching and then compressing the glass tube along its longitudinal axis, when the glass tube has been softened in the groove area. The chucks are rotated during heating, stretching and compressing of the glass tube.

REFERENCES:
patent: 1948560 (1934-02-01), Borneman
patent: 3263852 (1966-08-01), Fridrich
patent: 4582523 (1986-04-01), Marcucci et al.
patent: 4585468 (1986-04-01), Marcucci et al.
patent: 4818266 (1989-04-01), Sacks et al.
patent: 4923498 (1990-05-01), Gregory

Affiliated with

Also associated with

Rating

Apparatus for forming a groove in a glass tube does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for forming a groove in a glass tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for forming a groove in a glass tube will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-235296