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Class Information
Number: 353
Name: Optics: image projectors >
Description: This class provides for projectors not elsewhere classified. This class includes the projectors for particular types of objects to be projected; such as maps and aerial photographs, targets, transparent plates, information data, microscopic objects, scales and indicators, and stencils or perforated plates. Various other species and types of projectors are also included here such as kaleidoscopic, heliostats, stereoscopic and relief, pointers, gun type, moving images on screens, episcopes and cabinets including screens.










Class Number Class Name No. of Patents
353/29

Additional illumination of or near projected image

47
353/4

Ascending heated air changes pictures

0
353/74

Cabinet encloses projector and one side of screen

197
353/76

Focus or variable magnification

52
353/75

Light shield, mask, hood, or diaphragm

50
353/77

Reflector between lamp and screen

213
353/78

Plural

177
353/84

Color filter

573
353/30

Composite projected image

654
353/36

Letters or numbers

11
353/31

Multicolor picture

1432
353/32

Lenticular film

39
353/33

Prism

464
353/34

Plural projection paths with single light source

479
353/37

Reflector between lamp and screen

469
353/35

Slides and/or film superposed in projector

31
353/69

Distortion compensation

558
353/70

For projection axis inclined to screen

391
353/21

Editing or auxiliary viewing

14
353/63

Epidiascope (i.e., selective opaque and transparency projector)

37
353/64

Plural reflectors between lamp and screen

17
353/65

Episcope (i.e., opaque projector)

26
353/66

Reflector between lamp and screen

45
353/67

Cabinet encloses projector and one side of screen

12
353/95

Film gate

66
353/96

And lens support

13
353/DIG.2

Film strip

32
353/43

Gun, flashlight or battery operated type

35
353/DIG.6

Head accessories

13
353/3

Heliostats

110
353/119

Housing

929
353/46

Image moves on screen

76
353/47

Cabinet enclosed projector and one side of screen

15
353/48

Plural projectors or projection paths

54
353/49

Single light source

21
353/50

Reflector between lamp and screen

69
353/51

Plural

35
353/1

Kaleidoscopic

30
353/2

Including particles loosely housed for agitation

20
353/85

Lamp control

466
353/86

Dissolve type

28
353/87

Lamp position adjustable

95
353/100

Lens support

133
353/101

Lens position adjustable

492
353/97

Light shield, mask, hood, or diaphragm

357
353/5

Mapping or aerial photograph rectifying

12
353/6

Stereoscopic

15
353/121

Methods

461
353/39

Microprojector

55
353/122

Miscellaneous

1156
353/DIG.4

Opaque

30
353/102

Particular condenser

303
353/120

Picture carrier

165
353/82

Plural projection paths with single light source

136
353/83

Dissolve type

5
353/94

Plural

761
353/42

Pointer

104
353/20

Polarizer or interference filter

946
353/81

Prism in light path

449
353/28

Projected image combined with real object

309
353/72

Projector or screen removable from common housing

52
353/73

Plural reflectors between lamp and screen

20
353/98

Reflector

674
353/99

Plural

648
353/10

Relief illusion

177
353/40

Scale or scale indicator projector

18
353/41

Vernier or plural scales

7
353/25

Selective data retrieval

117
353/26R

Film strip

74
353/26A

Automatic

101
353/27R

Plural picture rows on single microcard

126
353/27A

Automatic

52
353/71

Selective projection on distant or cabinet screen

73
353/68

Selective slide and film strip projector

9
353/88

Shutter

99
353/93

Dissolve type

9
353/89

Plural projection paths

30
353/90

Dissolve type

9
353/92

Slides reciprocated horizontally from magazine

5
353/91

Solenoid operated

5
353/44

Simultaneous projection and manual delineation

23
353/45

Score register

4
353/103

Slide transfer mechanism

73
353/113

Feeder magazine and receiver magazine

17
353/104

For slides of various dimensions

12
353/111

Gravity operated

17
353/112

Feeder magazine and receptacle

15
353/105

Magnetically operated

1
353/106

Solenoid

2
353/107

Rotary slide carrier

5
353/108

Slides fixed to movable carrier

24
353/110

Disc

23
353/109

Endless chain or belt

23
353/118

Slides gripped or hooked

22
353/114

Slides reciprocated horizontally

14
353/116

From magazine

27
353/117

Rotary magazine

31
353/115

Slides elevated

2
353/DIG.1

Slides stacked with surface to surface contact

19
353/62

Stencil or perforated plate projector (e.g., sky or cloud projector)

45
353/7

Stereoscopic

344
353/8

Polarizer

124
353/9

Slide transfer mechanism

12
353/79

Structurally related projector and screen

266
353/80

Profile or silhouette

11
353/11

Target, map or navigation projection

41
353/12

With or for vehicle

52
353/52

Temperature control

280
353/57

Blower

292
353/60

Air directed against face or back of object

197
353/59

Common motor for blower and slide changer

13
353/61

Particular air ducts or deflector

330
353/58

Plural

122
353/55

Heat filter

45
353/56

Heat resistant or insulating material

52
353/54

Liquid coolant

79
353/53

Means to preheat slides or film

20
353/DIG.5

Transparency holder accessories

83
353/22

Transparent plate

25
353/23

Plate part of film gate

24
353/24

Including lens support

9
353/DIG.3

Transparent

89
353/38

Unitary plural refracting surfaces

406
353/13

With or for vehicle

107
353/14

Instrument indicator

58
353/15

With sound accompaniment

83
353/19

Common picture and sound record carrier system

33
353/16

Phonograph

3
353/18

Cabinet encloses projector and one side of screen

8
353/17

In carrying case

3
 
 
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