Glass manufacturing – With repair – assembly – or disassembly means for apparatus – To provide alternately used parts
Reexamination Certificate
1999-04-28
2001-02-06
Vincent, Sean (Department: 1731)
Glass manufacturing
With repair, assembly, or disassembly means for apparatus
To provide alternately used parts
C065S267000, C065S319000, C065S356000, C065S357000, C065S359000
Reexamination Certificate
active
06182473
ABSTRACT:
The present invention relates to I.S. (individual section) machines which transform gobs of molten glass into bottles in a two step process and more particularly to the mechanism for cooling the blankmolds of that machine.
BACKGROUND OF THE INVENTION
The first I.S. machine was patented in U.S. Pat. Nos. 1,843,159, dated Feb. 2, 1932, and 1,911,119, dated May 23, 1933. An I.S. (individual section) machine has a plurality of identical sections (a section frame in which and on which are mounted a number of section mechanisms) each of which has a blank station which has one or more blank molds for receiving a corresponding number of gobs of molten glass. The received gobs are formed into parisons having a threaded opening at the bottom (the finish) and a blow station which receives the parisons and forms them into bottles standing upright with the finish at the top. The more effective the heat transfer from a gob of molten glass within a blankmold, the quicker the forming process.
Conventionally, the blankmolds are formed with a series of vertical holes and cooling air is either directed upwardly through these holes (bottom up) or downwardly through these holes (top down). The most recent design for an I.S. machine is disclosed in U.S. Pat. No. 5,830,254 and a conventional system for supplying top down cooling air is shown in U.S. Pat. No. 4,561,875. Such manifolds interfit with the blank molds making removal of the blank molds difficult. An operator conventionally uses a crowbars to separate the manifold from the blank molds thereby making it possible for a second operator to remove the blank molds.
OBJECT OF THE INVENTION
It is an object of the present invention to provide an improved top down air cooling system for blank molds in such a machine.
It is also an object of the present invention to provide an improved top down air cooling system for blank molds in an I.S. machine wherein blank molds can be changed by a single operator.
Other objects and advantages of the present invention will become apparent from the following portion of this specification and from the accompanying drawings which illustrate a presently preferred embodiment incorporating the principles of the invention.
REFERENCES:
patent: Re. 34048 (1992-09-01), Bolin
patent: 3580712 (1971-05-01), Mumford
patent: 3586491 (1971-06-01), Mennitt
patent: 4388099 (1983-06-01), Hermening et al.
patent: 4502879 (1985-03-01), Foster
patent: 4561875 (1985-12-01), Foster
patent: 4655813 (1987-04-01), Nebelung
patent: 4842637 (1989-06-01), Bolin et al.
patent: 4909823 (1990-03-01), Bolin et al.
patent: 5059236 (1991-10-01), Ito
patent: 5516352 (1996-05-01), Bogert et al.
patent: 5830254 (1998-11-01), Roberts et al.
Emhart Glass S.A.
Smith Spencer T.
Vincent Sean
LandOfFree
I.S. machine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with I.S. machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and I.S. machine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2607604