公开(公告)号：US5469908A

公开(公告)日：1995-11-28

申请号：US213163

申请日：1994-03-15

Applicant: James Chmel ,  Robert P. Berger

Inventor： James Chmel ,  Robert P. Berger

IPC: A61C13/20 ,  B22C9/04 ,  B22C7/02 ,  B22C21/00

CPC classification number: A61C13/20 ,  B22C9/04

Abstract: A cap for an investment vessel for receiving investment material comprises a platform having a contoured edge and an underside. A wedge is located on the underside of the platform and is frictionally engageable with at least a portion of an inner edge of the top of the vessel. When the cap is placed in frictional engagement with the vessel, the contoured edge provides a restricted opening to the vessel for controlling the flow of the investment material. A lip is provided on the platform at the contoured edge for channeling investment material to the opening.

Abstract translation: 用于接收投资材料的投资船舶的上限包括具有轮廓边缘和下侧的平台。 楔形件位于平台的下侧，并且可与容器顶部的内边缘的至少一部分摩擦接合。 当盖与容器摩擦接合时，轮廓边缘为容器提供了限制开口，用于控制投料的流动。 在平台上的轮廓边缘设有一个唇缘，用于将投资材料引导至开口。