公开(公告)号：US3716307A

公开(公告)日：1973-02-13

申请号：US3716307D

申请日：1971-10-06

Applicant: KMS IND INC

Inventor： HANSEN R

IPC: B66C1/02 ,  A47B97/00 ,  A45D42/14 ,  B66C1/04

CPC classification number: B66C1/0268 ,  B66C1/0218 ,  B66C1/0231 ,  B66C1/0293

Abstract: A venturi-head for a vacuum system utilized as a source of negative pressure for vacuum cups and the like which has incorporated therein a safety shut off valve to hold vacuum in the vent of a failure of actuating jet stream and requiring a pressure release available only when pressure source is furnishing required pressure.

Abstract translation: 用于真空系统的文氏管头用作真空杯等的负压源，其中结合有安全截止阀，以将真空保持在致动喷射流的故障的排气口并且仅需要压力释放 当压力源提供所需的压力时。