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Class Information
Number: 352/191
Name: Optics: motion pictures > Camera and/or projector drive mechanisms > With film engaging claws reciprocally driven to engage film
Description: Subject matter including a reciprocating member, a projection on said member to engage longitudinally spaced perforations in a motion picture film, and means to withdraw the projection from the film on alternate carrier strokes to effect an intermittent advance.


Sub-classes under this class:

Class Number Class Name Patents
352/194 Cam actuated 26
352/192 Crank pin actuated 6


Patents under this class:

Patent Number Title Of Patent Date Issued
6478426 Rectilinear film transport system Nov. 12, 2002
6081293 Linear motor film gate for telecine Jun. 27, 2000
5923402 Tractor-type film transport apparatus Jul. 13, 1999
5333020 Sprocket wheel for advancing film and device for advancing film using said sprocket wheel Jul. 26, 1994
4892404 Film transport mechanism for a motion picture camera Jan. 9, 1990
4702577 Film transport device Oct. 27, 1987
4498747 Motion picture camera Feb. 12, 1985
4357082 High speed film advancement mechanism and system therefor Nov. 2, 1982
4316655 Adjustable automatic surveillance camera Feb. 23, 1982
4277152 Controls for synchronizing audio signals with film advancement in a projector Jul. 7, 1981
4245897 Moving picture camera with interchangeable film magazine Jan. 20, 1981
4235534 Device for driving the claw shaft of a motion picture camera Nov. 25, 1980
4194817 Marking of interspersed motion-picture scenes and still shots with interrupt-transport markings Mar. 25, 1980
4123153 Advance mechanism Oct. 31, 1978
4053214 Advance mechanism Oct. 11, 1977
3963334 Film transport apparatus for a motion picture camera or projector Jun. 15, 1976



 
 
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