Patent ID: 6217534
Filing Date: 2001-04-17
Classification: A61H,A61M,B05B,Y10T

Abstract:
A method for producing a variably pulsed fluid discharge from a flowing fluid stream supplied under pressure by a pipeline, utilizing valve means and comprising the steps of:(a) repeatedly blocking and unblocking the flow of said flowing fluid stream, wherein one blocking plus one unblocking constitutes a cycle, wherein time elapses during said cycle, wherein the elapsed time during one blocking plus the elapsed time during one unblocking establishes a cyclic frequency, and wherein repeatedly blocking and unblocking the fluid stream produces a cyclic fluid discharge,(b) establishing the portion of cycle time elapsed during blocking in relation to the portion of cycle time elapsed during unblocking as a constant, wherein the fluid throughput of a cycle determines the fluid throughput of said valve means, and(c) varying the cycle time so that the proportion of cycle time elapsed blocking and unblocking the fluid stream during each cycle remains constant, wherein the cyclic fluid dicharge of said valve means is inversely proportional to its frequency, and preserves the established fluid throughput of said valve means,whereby said method produces a variably pulsed fluid discharge having a controlled fluid throughput independent of the frequency of the pulsed discharge.