Volumetric is fluid dispensing devices, systems, and methods

US8047405B2 · kind B2 · utility

Assignee

• HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. · US

Inventors

• David R. Otis, Jr. · Corvallis, US
• Gerald F. Meehan · Corvallis, US
• Christopher Vitello · Corvallis, US
• Casey T. Miller · Corvallis, US
• N K Peter Samuel · Corvallis, US
• Joseph W. Dody · Corvallis, US

Key dates

• Filing date: Mar 20, 2006
• Grant date: Nov 1, 2011
• Expiry date: Nov 17, 2028

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65D1/323
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A volumetric fluid dispensing device can include a fluid reservoir having at least one flexible wall and a dispensing reservoir oriented above the fluid reservoir. The dispensing reservoir can have an overflow return fluidly connected to the fluid reservoir such that the dispensing reservoir holds a measured volume of fluid. A reservoir conduit can be fluidly connected to the fluid reservoir and the dispensing reservoir to allow excess fluid to return from the overflow to the fluid reservoir. A dispensing conduit can also be fluidly connected to the dispensing reservoir to allow fluid to exit the dispensing reservoir. A mechanical wall actuator can be operatively associated with the walls for controllably flexing at least a portion of the walls sufficient to force fluid from the fluid reservoir to the dispensing reservoir via the reservoir conduit.