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:
Apr. 27, 2004
Filed:
Jan. 14, 1998
Simon J. Rothenberg, N. Wales, PA (US);
Hsu Chi Yeh, Albuquerque, NM (US);
Bernard J. Greenspan, San Diego, CA (US);
Charles River Laboratories, Wilmington, MA (US);
Abstract
Apparatus and methods for delivery of air-borne materials from pulsatile delivery devices by passing the emissions from such devices and air in a coaxial manner through a suitable mixing chamber. Preferred apparatus include a chamber defining an axis of air flow, a plurality of pulsatile delivery devices, an actuator in communication with the devices for selective actuation thereof, and a device for introducing air at a first end of the chamber and for flowing that air substantially along the axis. The pulsatile delivery devices are positioned at the first end of the chamber such that actuation of the devices emits an air-borne substance substantially along the axis of air flow.