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:
May. 28, 1996
Filed:
Jul. 01, 1994
Alan E Opel, Monrovia, CA (US);
Philip Spivak, Toluca Lake, CA (US);
Oleg Zadorozhny, North Hollywood, CA (US);
Alpheus Cleaning Technologies Corp., Rancho Cucamonga, CA (US);
Abstract
A granulator and delivery system for sublimable CO.sub.2 granules has working edges rotatably supported for defining a cutting surface; a driver for powering the working edges; a feeder for advancing solid CO.sub.2 into contact with the working edges, the working edges removing the granules from the solid CO.sub.2 ; a duct having an outlet, the granules being directed from the block to flow from the outlet; an eductor having a material inlet, a gas inlet and an eductor outlet, the material inlet being connected to the outlet; a delivery control valve fluid connected between the gas inlet and a source of high pressure gas; a controller responsive to an external signal for: activating the driver, the feeder and the delivery control valve for delivery of granules from the duct in response to activation of the demand signal; deactivating at least one of the driver and the feeder in response to either deactivation of the demand signal for halting production of the granules or for preventing consumption of all but a predetermined portion of the solid CO.sub.2 ; and reversing the feeder for permitting loading of a fresh quantity of solid CO.sub.2 into the granulator in response to a predetermined advance of the feeder, and resuming operation of the granulator once the fresh quantity is loaded. Also disclosed is a method of producing and blasting sublimable dry ice granules.