Planar manifold with integrated heated injector inlet and unheated pneumatics

US6612153B2 · kind B2 · utility

Assignee

• AGILENT TECHNOLOGIES, INC. · US

Inventors

• Richard P. White · West Chester, US
• Alan D. Loux · Nonatum Mills, US

Key dates

• Filing date: Jun 5, 2001
• Grant date: Sep 2, 2003
• Expiry date: Jul 10, 2021

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/87885
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A planar manifold that integrates all the control pneumatics, electronic pressure controls (EPC), and injector inlet onto a single plate, therefore eliminating numerous seals, fittings and transfer tubing between these devices. The planar manifold utilizes plates of specific geometry that minimizes heat transfer between the heated components and the unheated components in the planar manifold, while maintains the mechanical rigidity to support the attached components during shock and vibration. The planar manifold not only improves the reliability and manufacturability of micro gas chromatographs, but also lowers the cost of production.