Invention Grant
- Patent Title: Manually operated vacuum pump and refill device
- Patent Title (中): 手动真空泵和补充装置
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Application No.: US11653335Application Date: 2007-01-16
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Publication No.: US07641452B2Publication Date: 2010-01-05
- Inventor: Lin Po Liao
- Applicant: Lin Po Liao
- Applicant Address: TW Taichung
- Assignee: Lih Yann Industrial Co., Ltd.
- Current Assignee: Lih Yann Industrial Co., Ltd.
- Current Assignee Address: TW Taichung
- Agency: Muncy, Geissler, Olds & Lowe, PLLC
- Main IPC: F04B23/00
- IPC: F04B23/00 ; F04B23/02 ; F04B41/00 ; F04B41/02 ; F04B53/00 ; F04B53/10 ; F04F3/00 ; B67C3/16

Abstract:
A manually operated vacuum pump and refill device includes a body on top with a vacuum pump attached, and a lower portion of the body is arranged with an elastic adapter. The adapter has a central channel in communication with the body. The body includes an inlet in which a water supply is connected. A control valve is arranged on the water supply before it reaches to the body. The vacuum pump is further arranged with a check valve with respect to the body. The body is also arranged with a check valve securely positioned with a C-clip. The check valve is provided with a float moveably within a chamber thereof.
Public/Granted literature
- US20080170949A1 Manually operated vacuum pump and refill device Public/Granted day:2008-07-17
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