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. 16, 1997
Filed:
Feb. 29, 1996
Peter L Sadowski, Woodbury, MN (US);
David Schiff, Highland Park, NJ (US);
Paul Mulhauser, New York, NY (US);
Medi-Ject Corporation, Minneapolis, MN (US);
Abstract
The present invention relates to a nozzle assembly adapted for use with an injector device having an energy generating source and a chamber adapted for holding a fluid and having first and second end portions with an orifice defined at the first end portion for passage of the fluid and being open at the second end portion. The device includes a first driving member movably positioned in the chamber; a second driving member movably positioned in the chamber and spaced apart from the first driving member according to a predetermined travel distance and including an end portion operative for expelling fluid out of or drawing fluid into the chamber via the orifice; and a spacing member disposed between the first and second driving members for maintaining said predetermined travel distance during displacement of the first and second driving members before the energy generating source is activated.