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US 5,670,185 AGranted
Die assembly for extruding edible substances
AssigneeNestec S.A.
InventorsErnst Heck, Marcel Mueller, Adrian Weber
Life of this patent
Estimating the term…
Abstract
An extrusion die assembly has a body member which rotatably houses a barrel member which provides a tubular passage. The body member has an inlet channel for passage of a plasticized, especially edible, substance to the barrel member tubular passage which extends from a junction with the body member to at least one outlet channel. A rotary seal is provided at a junction between the body member and barrel member.
Claims21
An assembly for extruding substances comprising:
- a first hollowed assembly member comprising an outer wall surface and an inner wall surface, a first end surface which extends between the inner and outer wall surfaces and a second end which comprises wall surfaces which define at least one channel opening wherein the first end surface and inner wall surface circumscribe and define an opening and wherein the inner wall surface extends between the first end surface to the second end and defines a hollowed tubular passage for passing a substance from the member first end to the member second end for passage through the at least one channel opening;
- rotary sealing means which is positioned on the first end surface about and coaxial with the opening and which comprises a concave inner surface which extends transversely from the first end surface;
- a second hollowed assembly member comprising (i) an outer wall surface and an inner wall surface and (ii) a wall portion which defines a channel wherein the second member inner wall surface comprises (a) a first surface portion which extends coaxially with the first member outer wall surface and is configured and positioned to circumscribe the first member outer wall surface and (b) a second portion which comprises a surface and a rim which protrudes transversely from the second portion surface wherein the second portion surface extends transversely from the first surface portion towards the tubular passage so that the rotary sealing means is positioned between the second portion surface and the first member first end surface and wherein the second portion surface extends and the rim portrudes so that a slot is formed between the rim and the first member inner wall surface and (c) a third surface portion configured to confine an area about the first member first end opening and wherein the first and second portions are configured so that the first member is rotatable within the second member and wherein the wall portion which defines the channel extends from the second member outer surface to the second member inner surface third portion so that the channel communicates with the first member tubular passage for feeding a substance to the tubular passage for passage of the substance from the first member first end to the first member second end;
- and
- bearing means positioned between the first member outer surface and the second member inner surface for facilitating rotation of the first member.
2 more elements
An extrusion die assembly comprising:
- a hollowed body member and a hollowed barrel member and rotary sealing means wherein the body member rotatably houses the barrel member and houses the rotary sealing means and wherein the barrel member comprises a first end, a wall surface which defines a tubular passage and a second end tubular passage enclosure portion comprising at least one channel opening therethrough wherein the wall surface extends from a first end tubular passage opening to the second end tubular passage enclosure portion, the rotary sealing means is positioned between the barrel member first end and the body member at a position about the tubular passage opening and comprises a concave surface at a position which faces the opening, and the body member comprises a wall surface adjacent the rotary sealing means and a rim which extends from the body member wall surface towards the tubular passage so that a slot is formed between the rim and the barrel member tubular passage wall surface and comprises further wall surfaces which define and confine a channel and an area which communicate with the barrel member first end opening and tubular passage;
- and
- bearing means positioned between the body member and barrel member for facilitating rotation of the barrel member.
Dependencies are inferred from the claim text.