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US4801959A Expired / Lapsed US ⏱️ 0.0 years remaining

Cordless remote control shutter activation device

Assignee: Individual
•
Filing: 1987-11-17
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Granted: 1989-01-31
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Expires: 2007-11-17
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Abstract

Abstract A device which clamps onto one side of a camera which is cordlessly remotely operated so as to mechanically push down the shutter release button on the camera. The device comprises an inverted L shaped housing with a threaded shaft running therethrough for positioning a gripping portion and a base to support the camera. The device is battery operated to drive a motor and a series of reducing gears, which in turn drive a driving arm downwards or upwards to activate the shutter release button.

Inventors

  • 👤 Ming J. Chern

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 13:06
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/38

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 330 words
A remote controlled cordless shutter release activation device comprising: (a) an inverted L-shaped housing (1), said housing (1) including a long leg which houses a threaded shaft (13) and a short leg; said threaded shaft (13) protruding from a bottom wall of said housing (1) so as to threadably support a base (11) on a lower end thereof; a securement arm (12) with a gripping portion (121) thereon, said securement arm (12) being rotatably fixed on an upper part of said threaded shaft (13) by securement nuts (14); said base (11) acting in conjunction with said gripping portion (121) of said securement arm (12) to clamp one end of a camera therebetween; (b) an antenna (541) and a driving apparatus circuit board (16) and a microswitch (62) for controlling a driving apparatus; said antenna (541) receiving a signal from a remote control signal transmission device operated by a user; said circuit board (16) including two FET's (54, 55), two OP AMP's (56, 57), a decoder (52), a transistor (58), and a relay (6) said antenna (541) being fixably connected to the circuit board (16) and disposed within said housing (1); said microswitch (62) being fixed on an inside portion of the short leg of said housing (1); and (c) said driving apparatus being housed in said short leg of said housing (1) and including: a battery driven motor (2), a set of reducing gears (21), a driving shaft (31), a positioning nut (32) and a driving arm (3); said motor (2) driving a set of reducing gears (21); said reducing gears (21) driving a driving shaft (31), said driving shaft (31) threadably displacing a positioning nut (32) upwards or downwards with respect to direction of rotation of said motor (2); said positioning nut (32) being fixed in a recess in a driving arm (3) so that said driving arm (3) is displaced together with said positioning nut (32) to press down and release a shutter release button on said camera.
Claim 2
Dependent Claim 330 words
A remote controlled cordless shutter release activation device comprising: (a) an inverted L-shaped housing (1), said housing (1) including a long leg which houses a threaded shaft (13) and a short leg; said threaded shaft (13) protruding from a bottom wall of said housing (1) so as to threadably support a base (11) on a lower end thereof; a securement arm (12) with a gripping portion (121) thereon, said securement arm (12) being rotatably fixed on an upper part of said threaded shaft (13) by securement nuts (14); said base (11) acting in conjunction with said gripping portion (121) of said securement arm (12) to clamp one end of a camera therebetween; (b) an antenna (541) and a driving apparatus circuit board (16) and a microswitch (62) for controlling a driving apparatus; said antenna (541) receiving a signal from a remote control signal transmission device operated by a user; said circuit board (16) including two FET's (54, 55), two OP AMP's (56, 57), a decoder (52), a transistor (58), and a relay (6) said antenna (541) being fixably connected to the circuit board (16) and disposed within said housing (1); said microswitch (62) being fixed on an inside portion of the short leg of said housing (1); and (c) said driving apparatus being housed in said short leg of said housing (1) and including: a battery driven motor (2), a set of reducing gears (21), a driving shaft (31), a positioning nut (32) and a driving arm (3); said motor (2) driving a set of reducing gears (21); said reducing gears (21) driving a driving shaft (31), said driving shaft (31) threadably displacing a positioning nut (32) upwards or downwards with respect to direction of rotation of said motor (2); said positioning nut (32) being fixed in a recess in a driving arm (3) so that said driving arm (3) is displaced together with said positioning nut (32) to press down and release a shutter release button on said camera.

References Cited (Backward Citations)

US4383744A Cited
US4707127A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-01-31 1992-08-01 1993-01-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-01-31 1996-08-01 1997-01-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-01-31 2000-08-01 2001-01-31 $7700.00 Window Closed / Lapsed

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