HK1041928A1 - Lift integrated in the ceiling for a multimedia projector - Google Patents

Lift integrated in the ceiling for a multimedia projector

Info

Publication number
HK1041928A1
HK1041928A1 HK02103464A HK02103464A HK1041928A1 HK 1041928 A1 HK1041928 A1 HK 1041928A1 HK 02103464 A HK02103464 A HK 02103464A HK 02103464 A HK02103464 A HK 02103464A HK 1041928 A1 HK1041928 A1 HK 1041928A1
Authority
HK
Hong Kong
Prior art keywords
ceiling
multimedia projector
projector
lift integrated
lift
Prior art date
Application number
HK02103464A
Inventor
Hans Weibel
Original Assignee
Av Weibel
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 Av Weibel filed Critical Av Weibel
Publication of HK1041928A1 publication Critical patent/HK1041928A1/en

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The projector unit (5) is stored in a space above a ceiling (1) and is lowered for use by the four threaded rods (12) in bearings (11) and rotated by an electric motor driving a chain (14) and sprockets (13) to drive cooperating nuts (22) attached to a frame (24) carrying the projector.
HK02103464A 2000-05-18 2002-05-07 Lift integrated in the ceiling for a multimedia projector HK1041928A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH9932000 2000-05-18

Publications (1)

Publication Number Publication Date
HK1041928A1 true HK1041928A1 (en) 2002-07-26

Family

ID=4551831

Family Applications (1)

Application Number Title Priority Date Filing Date
HK02103464A HK1041928A1 (en) 2000-05-18 2002-05-07 Lift integrated in the ceiling for a multimedia projector

Country Status (4)

Country Link
EP (1) EP1156364B1 (en)
AT (1) ATE235070T1 (en)
DE (1) DE50100120D1 (en)
HK (1) HK1041928A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0203406L (en) * 2002-11-19 2004-05-18 Lars Hammargren Projector lift device for a ceiling
US7963495B2 (en) * 2007-03-09 2011-06-21 Barry Charles Green Ceiling mounted lift for a multi-purpose projector

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4577827A (en) * 1982-09-30 1986-03-25 Lois G. Langley Camera holder apparatus
US4750832A (en) * 1985-11-06 1988-06-14 Mcdaniel & Lloyd, Inc. Video projector mount
US5261645A (en) * 1989-07-31 1993-11-16 Huffman Charles E Projector ceiling lift
US5366203A (en) * 1989-07-31 1994-11-22 Safety Lock And Lift, Ltd. Projector ceiling lift
DE4018432A1 (en) * 1990-06-08 1991-12-12 Os Co Lifting device for projector - comprises frame body with several screw shaft sections at corners

Also Published As

Publication number Publication date
EP1156364B1 (en) 2003-03-19
ATE235070T1 (en) 2003-04-15
DE50100120D1 (en) 2003-04-24
EP1156364A1 (en) 2001-11-21

Similar Documents

Publication Publication Date Title
EP0664595A3 (en) Controller for power device and drive controller for motor.
ATE19543T1 (en) LINEAR DRIVE DEVICE WITH TWO MOTORS.
MX9206464A (en) BIKE WITH ROMBOIDAL GEAR
DE69612784T2 (en) Bicycle with electric motor auxiliary drive
HK1069158A1 (en) Cargo power drive unit and a method of conveying cargo using the same
AU2003232496A1 (en) Free-piston device provided with an electric linear drive
EP1086722A3 (en) Treadmill motor control
WO2004078632A3 (en) Movable platform with an integrated lifting device
DE59207106D1 (en) Motor-gear unit with a planetary gear drive driven by an electric motor
GB2310770B (en) Control device for controlling AC motor such as that in elevator with high driving efficiency
HK1041928A1 (en) Lift integrated in the ceiling for a multimedia projector
DE69414353D1 (en) Bicycle drive device
DE9405767U1 (en) Cord drive for bicycles with 2 pedals
CN2542154Y (en) Automatic quilt-covering machine
TWI370420B (en) Electric device and method for driving an organic diode in a light sensing state
GB9400516D0 (en) Power drive assembly for wheelchair
JPS6443692A (en) Electric shutter
EP1094247A3 (en) Worm drive
CN218004299U (en) Indication board
CN210055424U (en) Art appreciation revolving stage
CN215336158U (en) Building site light installation mechanism
ITBO20020372A1 (en) GYMNASTIC MACHINE
EP1256416A3 (en) Crank drive for the recirculation of machined parts
CN2803432Y (en) Photo-filling therapeutic machine
ATE306011T1 (en) DRIVE DEVICE FOR ROLL-UP ELEMENTS OR THE LIKE

Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20140430