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US5344594A
Expired / Lapsed
US
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Method for the fabrication of multicolored balls for a twisting ball display
Assignee: Xerox Corp
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Filing: 1992-12-11
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Granted: 1994-09-06
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Expires: 2012-12-11
Abstract
Abstract A method of forming hemispheric bichromal balls, including the steps bringing together two streams of differently colored hardenable liquids for forming a single side-by-side bichromal stream, expelling said single side-by-side bichromal stream into a fluid as one or more free jets whose forward ends becomes unstable and break up into droplets which form into spherical balls, each of the balls comprising hemispheres of differently colored hardenable liquid, and finally hardening the balls.
Inventors
- 👤 Nicholas K. Sheridon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:04
CPC Classifications
G; G02; G02B; G02B26/00; G02B26/02; G02B26/026; B; B01; B01J; B01J2/00; B01J2/02; B01J2/06; G09; G09F; G09F9/00; G09F9/30; G09F9/37; G09F9/372
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
97 words
A method of forming multichromal balls, comprising the steps of providing a plurality of streams of differently colored hardenable liquids flowing in substantially the same direction, directing the lead ends of the streams towards each other, forming a single side-by-side multichromal stream as said plurality of streams merge together, moving said single side-by-side multichromal stream through a fluid medium as one or more free jets, so that their forward ends become unstable and break up into droplets which form into spherical balls, each of said balls comprising layers of differently colored hardenable liquid, and hardening said balls.
Claim 2
Independent Claim
97 words
A method of forming multichromal balls, comprising the steps of providing a plurality of streams of differently colored hardenable liquids flowing in substantially the same direction, directing the lead ends of the streams towards each other, forming a single side-by-side multichromal stream as said plurality of streams merge together, moving said single side-by-side multichromal stream through a fluid medium as one or more free jets, so that their forward ends become unstable and break up into droplets which form into spherical balls, each of said balls comprising layers of differently colored hardenable liquid, and hardening said balls.
Claim 3
Dependent Claim
25 words
The method of forming multichromal balls as defined in claim 1 wherein said step of forming a single side-by-side multichromal stream produces a rod-like stream.
Claim 4
Dependent Claim
25 words
The method of forming multichromal balls as defined in claim 1 wherein said step of forming a single side-by-side multichromal stream produces a sheet-like stream.
Claim 5
Dependent Claim
23 words
The method of forming multichromal balls as defined in claim 3 wherein said step of forming said sheet-like stream produces a cylindrical stream.
Claim 6
Dependent Claim
23 words
The method of forming multichromal balls as defined in claim 1 wherein said single side-by-side multichromal stream is expelled into a gaseous fluid.
Claim 7
Dependent Claim
17 words
The method of forming multichromal balls as defined in claim 5 wherein said fluid medium is air.
Claim 8
Dependent Claim
22 words
The method of forming multichromal balls as defined in claim 1 wherein said single side-by-side multichromal stream is expelled into a liquid.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-09-05 | 1998-03-07 | 1998-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-09-05 | 2002-03-07 | 2002-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-09-05 | 2006-03-07 | 2006-09-06 | $7700.00 | Window Closed / Lapsed |