Glass manufacturing – Plunger
Patent
1992-10-30
1994-03-01
Lindsay, Robert L.
Glass manufacturing
Plunger
65173, 65308, 403306, 403349, C03B 1106
Patent
active
052903354
ABSTRACT:
An improved mechanism for securing a parison molding cone atop the plunger shaft of a glass container-moulding machine. A one piece collar is secured to the head of the shaft by a bayonet tongue-and-groove assembly. The collar has a crenulated inwardly projecting flange around its upper rim. The base of the molding cone has an outwardly projecting crenulated flange around its lower rim. The flanges of each part are shaped and dimensioned to mesh together, thus allowing the flanged part of the base to be inserted into the top section on the collar then rotated into a locking position. Two spring-loaded locking members mounted into the collar engage recesses in the flange of the molding cone in order to prevent rotation of the molding cone away from its engaged position. A locking pin located in a vertical channel in the collar when forced down by the cone engages a recess or groove in the shaft and is locked there permanently by the cone while it remains in its engaged position. This positive means of locking; keeps the collar which is subjected to millions of cycles of high impact stresses, from rotating to an unsafe position during the hot and severe vibratory glass molding operations.
Large cooling air passages are embodied in the collar that permit more efficient discharge of hot air from the core of the molding cone.
REFERENCES:
patent: 2092060 (1937-09-01), Gairing
patent: 2526998 (1945-01-01), Davis
patent: 3573025 (1971-03-01), Hamilton
patent: 4033744 (1977-07-01), Davis
patent: 4615191 (1986-10-01), Grandy
patent: 4636240 (1987-01-01), Kozora
patent: 4763778 (1988-08-01), Fedderson
patent: 4836839 (1989-06-01), Trahan et al.
patent: 4836842 (1989-06-01), Trahan
patent: 4842815 (1989-06-01), Cauquelin
LandOfFree
Plunger assembly for forming glass containers does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Plunger assembly for forming glass containers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plunger assembly for forming glass containers will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-573453