Glass forming apparatus
AssigneePyrotek, Inc.
InventorsRickie L. Retorick, Timothy E. March, John A. Pokrzyk, JR., Mark Palmer
Life of this patent
Estimating the term…
Abstract
A refractory orifice ring of a glass forming apparatus. The orifice ring includes an annular side wall and a base wall. At least one discharge hole is formed in the base wall. The discharge hole includes a top opening and a bottom opening, wherein the top opening has a surface area greater than a surface area of the bottom opening.
Claims20
A refractory orifice ring of a glass forming apparatus, said orifice ring comprising:
- an annular side wall and a base wall, said base wall having a planar top surface interrupted only by at least two discharge holes, said annular side wall extending from said base wall to form a reservoir,
- said discharge holes having a top opening and a bottom opening, wherein said top opening includes a surface area which is larger than a surface area of said bottom opening, wherein a sidewall extends between the top opening and the bottom opening, said sidewall comprising a truncated cone having a constant slope between the top opening and the bottom opening.
The orifice ring of claim 3, wherein said top opening and said bottom opening are circular.
A refractory orifice ring of a glass forming apparatus, said orifice ring comprising:
- an annular side wall and a base wall, said base wall having a planar top surface interrupted only by a discharge hole, said annular side wall extending from said base wall to form a reservoir,
- said discharge hole having a top opening and a bottom opening defining a length therebetween, wherein said base wall includes a bottom surface, said bottom surface including a single projecting neck element, said neck element surrounding said discharge hole bottom opening, wherein a depth of said reservoir is less than the length of said discharge hole.
A refractory orifice ring of a glass forming apparatus, said orifice ring comprising:
- an annular side wall and a base wall, at least two discharge holes formed in said base wall,
- said discharge hole having a top opening and a bottom opening,
- said top opening including a surface area which is larger than a surface area of said bottom opening, and
- said top opening being at least substantially oval and said bottom opening being at least substantially circular.
Dependencies are inferred from the claim text.