Package type metering device for high viscosity fluid products专利检索-定量包装主要包装包装材料及设备专利检索查询-专利查询网

Package type metering device for high viscosity fluid products

阅读：442发布：2023-10-11

专利汇可以提供Package type metering device for high viscosity fluid products专利检索，专利查询，专利分析的服务。并且A package type metering device for holding high viscosity fluid products and metering out desired precisely defined quantities of such product, consisting of an elongate cylindrical housing containing a product supply, a dispensing opening at one end, a plunger-type bottom member movable along the inside of the housing by means of a tubular member threadedly engaging a threaded member on the housing, and indicia means for indicating the mouvement of the plunger member and thereby the quantity of product metered out.，下面是Package type metering device for high viscosity fluid products专利的具体信息内容。

权利要求

1. A package type metering device for high viscosity fluid products, particularly suitable for metering iMpression materials in dental applications and for the usage in dental laboratories, characterized by a first cylindrical tubular member having a cylindrical body open at its bottom end and closed at its upper end by a fixed upper cover plate member that is conically tapered towards a central discharge orifice; a plunger type bottom member fitted into the cylindrical cavity of said first cylindrical tubular member and movable within said cylindrical member by means of a second cylindrical tubular member having an externally threaded surface threadedly engaging an internal thread of a threaded ring member; said threaded ring member mounted at said open bottom end of said first cylindrical tubular member by a detent means engaging a bead reinforced edge on the open bottom end of said first cylindrical tubular member, a concentric annular groove formed in said threaded ring member, said concentric annular groove flaring conically outwardly towards the outer edge of said groove, a bead shaped shoulder at the inner end of said groove forming a restriction in a passage connecting the inner end of said groove with an annular cavity, said annular cavity adapted to receive and automatically latch said bead reinforced edge of said first cylindrical tubular member when press-fitting said bead reinforced edge into said annular cavity, an inner wall portion of said threaded ring member remote from the internal thread defining together with said bead shaped shoulder a narrow annular orifice of smaller dimensions than said bead reinforced edge on said first cylindrical tubular member, said orifice serving as a detent means for latching said bead reinforced edge when introducing the same in applying pressure into said annular cavity, an outer wall portion of said threaded ring member having an inherent elasticity and connected to a reinforcing flange; a plurality of indicia on an outer surface of said reinforcing flange, said indicia corresponding to a plurality of indicia adjacent a narrow groove extending over the whole length of the outer surface of said second cylindrical tubular member; said second cylindrical tubular member having at its lower end a reinforcing ring with a knurled outer surface and being conically tapered at its upper end, said conically tapered upper end adapted to engage the inner surface of said plunger type bottom member having a frusto-conically tapered bottom wall and about its outer circumference a plurality of piston-ring shaped annular ridges whereby the configuration and dimensions of said movable bottom member substantially correspond to those of the internal surfaces of said fixed cover plate of said first cylindrical tubular member.

2. A package type metering device as recited in claim 1 wherein the pitch of the external thread of said second cylindrical tubular member is different from the pitch of the internal thread of said threaded ring member.

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Package type metering device for high viscosity fluid products

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