The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 28, 1995
Filed:
Sep. 15, 1992
Mark E Hail, Alameda County, CA (US);
Iain C Mylchreest, Santa Clara County, CA (US);
Finnigan Corporation, San Jose, CA (US);
Analytica of Branford, Inc., Branford, CT (US);
Abstract
An electrospray interlace apparatus is disclosed. The apparatus includes an inner needle for transferring a liquid sample to an ionizing region at one end of the needle. A first outer tube surrounds and is spaced apart from the needle to form a cylindrical space through which a flowing liquid may pass. The tube has one end extending beyond the end of the needle to define a mixing volume where the sample and liquid can mix. A second outer tube surrounds the first tube to define a second cylindrical space for flowing a gas past the end of the first tube and needle to focus the electrospray. A voltage is also provided between the tips of the needle and the tubes and an adjacent surface.