Plastic article or earthenware shaping or treating: apparatus – Means making particulate material directly from liquid or... – And distinct means applying congealing fluid to formed...
Patent
1976-07-01
1977-11-01
Spicer, Jr., Robert L.
Plastic article or earthenware shaping or treating: apparatus
Means making particulate material directly from liquid or...
And distinct means applying congealing fluid to formed...
425143, 425145, 425159, 264 13, B22D 2308
Patent
active
040563405
ABSTRACT:
A process and apparatus for prilling pharmaceuticals and the like. A mixture supply device provides a melted mixture of a pharmaceutical and a vehicle at a preselected pressure and at a temperature less than the decomposition temperature of the pharmaceutical, such vehicle being solid at normal room temperature. One or more guns receive the melted mixture. A pulse generator provides a train of pulses of preselected frequency and width which through a transducer causes a valve in each gun to periodically open at a frequency and for a duration controlled by the pulse frequency and width. Each gun has a nozzle supplying melted material upon opening of the corresponding valve and from which is ejected a series of spaced droplets of melt mixture at the pulse frequency, which droplets are of size controlled by the pulse width. Means below the nozzle define a gravity drop path for the droplets and contain a fluid for congealing the droplets as they fall along such path to form same into substantially spherical prills.
REFERENCES:
patent: 1393383 (1921-10-01), Linebarge
patent: 1534729 (1925-04-01), Obersohn
patent: 1762693 (1930-06-01), Linebarge
patent: 2038251 (1936-04-01), Vogt
patent: 2712621 (1955-07-01), North
patent: 3092553 (1963-06-01), Fisher, Jr. et al.
patent: 3123855 (1964-03-01), Fischer et al.
patent: 3143475 (1964-08-01), Koff et al.
patent: 3231641 (1966-01-01), Edmunds
patent: 3242237 (1966-03-01), Belak et al.
patent: 3437488 (1969-04-01), Humphreys
patent: 3457335 (1969-07-01), Elliott
patent: 3570725 (1971-03-01), Baker et al.
patent: 3744983 (1973-07-01), Jenkins
patent: 3815788 (1974-06-01), Reighand et al.
patent: 3827603 (1974-08-01), Reighand et al.
patent: 3990820 (1976-11-01), Danguillier et al.
Spicer, Jr. Robert L.
The Upjohn Company
LandOfFree
Prilling apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Prilling apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Prilling apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-5507