Abstract An insertable liner unit is provided for hot topping in ingot molds and the like. The liner unit is comprised of a plurality of side board members contained in end adjacent relationship within a jacket of flexible material. The jacket freely contains the side board members therewithin, requiring substantially no direct bond between the jacket and the board members. The jacket is formed of a flexible sheet-like material which may flex to permit adjacent side board members to be moved from a flat end-to-end position to an end adjacent angled geometry for installation in a liner in a hot top. The jacketed side board members provide an integrally formed liner unit requiring only one person to manipulate and install the hot topping. The jacket fully surrounds and is sealed about the side board members contained therewithin thereby preventing their dislodgement from the jacket. Further, the material of the jacket may be impermeable to water and comprise a heat sealable and shrinkable plastic such as polyethylene. Use of such jacketing material facilitates fabrication of the liner unit and prevents the side board members from absorbing moisture.
Inventors
👤 Melvin Eugene Wadsworth
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-31 15:51
CPC Classifications
B; B22; B22D; B22D7/00; B22D7/06; B22D7/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
75 words
An insertable liner unit for use in hot topping, said unit comprising a plurality of end adjacent hot top side board members and a jacket of flexible heat sealable plastic completely enveloping and retaining therewithin Said side board members in substantially end adjacent relationship, said side board members being angularly movable relative to one another from a flat endto-end position to an end adjacent angled geometry for installation in a liner in a hot top.
Claim 2
Dependent Claim
75 words
An insertable liner unit for use in hot topping, said unit comprising a plurality of end adjacent hot top side board members and a jacket of flexible heat sealable plastic completely enveloping and retaining therewithin Said side board members in substantially end adjacent relationship, said side board members being angularly movable relative to one another from a flat endto-end position to an end adjacent angled geometry for installation in a liner in a hot top.
Claim 3
Dependent Claim
27 words
A liner unit as defined in claim 1 wherein said jacket freely contains said side board members therewithin and is substantially independent of any direct bond therewith.
Claim 4
Dependent Claim
17 words
A liner unit as defined in claim 2 wherein said jacket material is a heat shrinkable plastic.
Claim 5
Dependent Claim
19 words
A liner unit as defined in claim 3 wherein said heat sealable and shrinkable plastic jacket material is polyethylene.
Claim 6
Dependent Claim
23 words
A liner unit as defined in claim 4 wherein the number of side board members comprising said liner unit is greater than two.
Claim 7
Dependent Claim
57 words
A liner unit as defined in claim 5 wherein frangible integrally molded portions of the side board members interconnect the adjacent ends of the plural side board members, said frangible portions being breakable to allow said relative angular movement of said members from said flat position to said angled geometry as a liner in a hot top.
Claim 8
Dependent Claim
45 words
A liner unit as defined in claim 2 wherein said jacket is continuous about the entirety of said plurality of sideboard members and said plastic is substantially impermeable to water and is sealed in fluid tight relationship about the entirety of said plural sideboard members.