WO2007138275A3 - Display device - Google Patents

Display device Download PDF

Info

Publication number
WO2007138275A3
WO2007138275A3 PCT/GB2007/001932 GB2007001932W WO2007138275A3 WO 2007138275 A3 WO2007138275 A3 WO 2007138275A3 GB 2007001932 W GB2007001932 W GB 2007001932W WO 2007138275 A3 WO2007138275 A3 WO 2007138275A3
Authority
WO
WIPO (PCT)
Prior art keywords
walls
gas
chamber
coloured
liquid
Prior art date
Application number
PCT/GB2007/001932
Other languages
French (fr)
Other versions
WO2007138275A2 (en
Inventor
James Butcher
Original Assignee
James Butcher
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by James Butcher filed Critical James Butcher
Publication of WO2007138275A2 publication Critical patent/WO2007138275A2/en
Publication of WO2007138275A3 publication Critical patent/WO2007138275A3/en

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/02—Advertising or display means not otherwise provided for incorporating moving display members
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/24—Illuminated signs; Luminous advertising using tubes or the like filled with liquid, e.g. bubbling liquid

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Marketing (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

A display device which is at least one metre in diameter includes superimposed light-transmitting walls (10 -13) defining intervening chambers (18 - 20) containing two immiscible fluids having different densities. One of the fluids is a coloured liquid and the other fluid (21) is a substantially colourless gas. The walls are mounted for rotation, and each chamber includes projections (30) forming cup-shaped recesses (31) at the periphery of each chamber which collect gas at the top of the chamber and release it into the liquid. The superimposed walls (10 -13) are separated by spacer rings (14 -16) containing evacuation ports (51 - 53) through which a proportion of the gas has been removed. The pressure of the gas is thus reduced below atmospheric pressure such that the external pressure acting on the walls at least partially counteracts the weight of coloured fluid acting outwardly on the walls. The evacuation ports (51 - 53) may be permanently re-sealed or provided with non-return valves.
PCT/GB2007/001932 2006-05-31 2007-05-24 Display device WO2007138275A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0610682.7 2006-05-31
GB0610682A GB0610682D0 (en) 2006-05-31 2006-05-31 Display device

Publications (2)

Publication Number Publication Date
WO2007138275A2 WO2007138275A2 (en) 2007-12-06
WO2007138275A3 true WO2007138275A3 (en) 2008-02-21

Family

ID=36694629

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2007/001932 WO2007138275A2 (en) 2006-05-31 2007-05-24 Display device

Country Status (2)

Country Link
GB (1) GB0610682D0 (en)
WO (1) WO2007138275A2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2051190A1 (en) * 1970-10-19 1972-04-20 Remy E Rotatable color filter disc
EP1233393A1 (en) * 2001-02-19 2002-08-21 Trevor Butcher Display device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2051190A1 (en) * 1970-10-19 1972-04-20 Remy E Rotatable color filter disc
EP1233393A1 (en) * 2001-02-19 2002-08-21 Trevor Butcher Display device

Also Published As

Publication number Publication date
GB0610682D0 (en) 2006-07-12
WO2007138275A2 (en) 2007-12-06

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