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:
Dec. 15, 2015
Filed:
May. 19, 2008
John P. W. Stark, London, GB;
Matthew S. Alexander, London, GB;
Mark D. Paine, London, GB;
Kate L. Smith, London, GB;
John P. W. Stark, London, GB;
Matthew S. Alexander, London, GB;
Mark D. Paine, London, GB;
Kate L. Smith, London, GB;
Queen Mary & Westfield College, London, GB;
Abstract
An electrostatic spraying device () and method for dispensing a controlled volume of liquid in pulses using an emitter () having a spray area () from which the liquid can be sprayed, a means for injecting charges into the liquid, whereby, in use, the liquid () is delivered to the spray area by electrostatic forces and electrostatic spraying occurs in one or more pulses whilst the charges are injected. The charges may be injected by a time-varying or constant non-zero electric field so that electrospray occurs above a threshold value.