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Title: Illusion amusement device

Abstract: A passageway forming a nozzle supplies a positive pressure impulse, derived from an oscillatory pressure source, to blades of a turbine mounted in a chamber. The passageway conducts fluid in a direction from the source toward blades of the turbine during a first portion of the oscillatory cycle while the pressure of the source exceeds the pressure of the fluid proximate the turbine. The fluid is directed by the nozzle in a concentrated stream toward the blades. During a second portion of the cycle while the source pressure is less than the fluid pressure proximate the turbine, fluid diffusely flows in the chamber away from proximate the turbine toward the source. The diffusely drawn fluid produces a negative pressure impulse on the turbine. The negative pressure impulse is substantially weaker than the positive impulse, whereby a net positive torque is exerted on the turbine to continuously drive the turbine in a positive rotational direction. The chamber confines the fluid substantially to a region within and proximate the turbine and channels the fluid in the direction the turbine is rotating to conserve the rotational inertia and rotational energy of the fluid and turbine, whereby the angular velocity of the turbine is augmented. The passageway appears to be directed along the axis of symmetry but, actually, the passageway is angled off center and thus the turbine will be rotated. The nozzle and oscillatory pressure source can also be used to induce and sustain a substantial rotational or circuitous motion of a small free object in the chamber.


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Inventors: Schuman, Mark (101 G St., SW)

Application Number: 502748
Filing Date: 1974-09-03
Publication_date: 1976-08-10
Assignee:
Primary Class(es): 472/57 40/440, 60/407, 60/533
Other Classes:
US Patent Ref:
1647902Nov, 1927Cohn46/56.
1782555Nov, 1930Weinstein46/56.
2425212Aug, 1947Strumor46/56.
2748528Jun, 1956Wolf46/56.
3009273Nov, 1961Gessmann40/39.
3477723Nov, 1969Djedda46/41.

Other Refs: 1,409,859345,223832,113123,620
Jul, 1965FR
Dec, 1921DD
Feb, 1952DT
Mar, 1919UK

Primary Examiner: Pinkham, Richard C.
Assistant Examiner: Kramer, Arnold W.
Attorney: Lowe, King, Price & Markva