Patent US3814318A successfully refreshed from Google Patents.
US3814318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means providing random movement especially for use in luminous fountains
Assignee: Individual
•
Filing: 1973-02-02
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Granted: 1974-06-04
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Expires: 1993-02-02
Abstract
Abstract A plurality of discrete discs of different specific gravity are guided for vertical movement in a transparent container. Random movement of the discs is initiated by introducing a liquid into the container at locations above and below the discs.
Inventors
- 👤 M Michaelis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:26
CPC Classifications
B; B05; B05B; B05B17/00; B05B17/08; A; A63; A63J; A63J17/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
88 words
A method of imparting random movement to attract attention comprising the steps of providing a plurality of discrete discs of different specific gravity in a transparent container with a gas between the discs, guiding said discs for vertical movement within said container, simultaneously introducing a liquid into the container at a location below a first one of the discs and at a location above a second one of the discs, permitting gas below the second disc to move upwardly through said liquid, and withdrawing liquid from said container.
Claim 2
Independent Claim
88 words
A method of imparting random movement to attract attention comprising the steps of providing a plurality of discrete discs of different specific gravity in a transparent container with a gas between the discs, guiding said discs for vertical movement within said container, simultaneously introducing a liquid into the container at a location below a first one of the discs and at a location above a second one of the discs, permitting gas below the second disc to move upwardly through said liquid, and withdrawing liquid from said container.
Claim 3
Dependent Claim
45 words
A method in accordance with claim 1 wherein said step of guiding the disc includes using a hollow centrally disposed tube within said container, and said step of introducing liquid including pumping the liquid upwardly through said tube for discharge through ports in the tube.
Claim 4
Dependent Claim
27 words
A method in accordance with claim 1 including introducing less liquid above the second disc as compared with the amount of lqiuid introduced below the first disc.
Claim 5
Dependent Claim
37 words
A method in accordance with claim 2 wherein said step of withdrawing the liquid from the container includes passing the water downwardly through said tube into a reservoir at an elevation below the elevation of said container.
Claim 6
Dependent Claim
74 words
Apparatus for imparting a random movement to attract attension comprising a transparent container, a pluralIty of discrete discs of different specific gravity in said container, means in the container for guiding the discs for vertical movement, means for simultaneously introducing a liquid into the container at a location below a first one of the discs and at a location above a second one of the discs, and means for withdrawing liquid from said container.
Claim 7
Dependent Claim
74 words
Apparatus for imparting a random movement to attract attension comprising a transparent container, a pluralIty of discrete discs of different specific gravity in said container, means in the container for guiding the discs for vertical movement, means for simultaneously introducing a liquid into the container at a location below a first one of the discs and at a location above a second one of the discs, and means for withdrawing liquid from said container.
Claim 8
Dependent Claim
43 words
Apparatus in accordance with claim 5 including a reservoir, said cylinder being supported by said reservoir, said reservoir containing a liquid to be introduced into said container, and pump means associated with the reservoir for pumping liquid from the reservoir into the container.
Claim 9
Dependent Claim
55 words
Apparatus in accordance with claim 5 wherein said means for guiding the discs includes a hollow tube coaxial with said container, said discs being annular and surrounding said tube, and said means for introducing a liquid into said container communicating with said tube, said tube communicating with said container at two locations at different elevations.
Claim 10
Dependent Claim
39 words
Apparatus in accordance with claim 7 wherein said means for providing communication between the tube and the container includes at least one upper orifice and at least one lower orifice, the upper orifice being smaller than the lower orifice.
Claim 11
Dependent Claim
18 words
Apparatus in accordance with claim 5 wherein at least one of said discs has a float attached thereto.
Claim 12
Dependent Claim
27 words
Apparatus in accordance with claim 5 including a vent opening at the upper end of said container for venting the upper end of said container to atmosphere.
References Cited (Backward Citations)
GB266251A
Cited
US3612396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |