Umbrella valve assembly having drip-prevention structure disposed about product fill pipe
US5819823A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 28, 1996 |
| Grant date | Oct 13, 1998 |
| Priority date | — |
| Expiry date | Aug 28, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B39/004
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A filling system is set fort that assists in maintaining the hygienic nature of the filling process. The filling system includes a fill pipe having an inlet for receiving a liquid product and an outlet overlying a container path along which the containers are successively transported for filling beneath the fill pipe. A drip-prevention structure is disposed about the outlet end of the fill pipe and includes a downwardly directed honed edge. The filling system further includes an umbrella valve assembly. The umbrella valve assembly comprises a linear actuator, an umbrella valve cone disposed proximate the outlet end of the fill pipe, and a valve rod disposed in the fill pipe between the linear actuator and the valve cone. The linear actuator is connected to move the valve rod and umbrella valve cone between a first position in which product is prevented from exiting the fill pipe and a second position that allows product to flow from the outlet of the fill pipe. The downwardly directed honed edge of the drip-prevention structure wipes the umbrella valve cone when the linear actuator moves the valve rod and umbrella valve cone between the second and first positions during each succes…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.