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Class Information
Number: 14
Name: Bridges >
Description: This class includes all structures by which a roadway or railroad is carried across a space intervening between supports and all structures, such as gates, etc., whose operation is dependent upon the operation of the bridge (as in drawbridges). Included in this class are both construction techniques and methods for building a bridge, regardless of type.


Class Number Class Name No. of Patents
14/24

Arch

20
14/26

Abutments and anchorages

11
14/25

Compound

9
14/77.1

Bridge construction method

125
14/77.3

Pier

14
14/74

Covering

11
14/73

Deck

154
14/73.1

Joint

79
14/31

Draw

5
14/47

Aprons

1
 

Bascule

 
14/36

Fixed pivot

2
14/37

Hinged sections

3
14/38

Rack and pinion

2
14/41

Locking devices

4
14/39

Nonpivoted

0
14/40

Rack and pinion

0
14/48

Buffers

0
14/50

Gates

1
 

Bridge operated

 
 

Displacement

 
14/54

Horizontally sliding

0
14/55

Locking

0
14/56

Horizontally swinging

2
14/57

Locking

1
14/58

Vertically sliding

1
14/59

Locking

0
14/60

Vertically swinging

0
14/61

Locking

0
 

Shaft rotation

 
14/62

Horizontally sliding

1
14/63

Locking

1
14/64

Horizontally swinging

1
14/65

Locking

0
14/66

Vertically sliding

0
14/67

Locking

1
14/68

Vertically swinging

1
14/69

Locking

0
 

Hand or motor operated

 
14/51

Horizontally swinging

0
14/52

Vertically sliding

0
14/53

Vertically swinging

2
14/43

Horizontally sliding

4
14/44

Boat operated

0
14/45

Lazy tongs

1
14/42

Lift

3
14/46

Locking devices

3
14/49

Signals

1
14/32

Swing

1
14/34

Boat operated

1
14/35

End supports and locking devices

4
14/33

Hand or motor operated

0
14/73.5

Expansion device (e.g., bearing pad)

76
14/27

Floating

51
14/28

Adjustable height

5
14/29

Draw

0
14/30

Locking

0
14/69.5

Gangway, ramp, or dock leveler

367
14/71.1

Attached

324
14/71.3

With lift means

206
14/71.5

Attached to fixed structure at first end and with cover and provision to fit vehicle at second end

144
14/71.7

Hydraulic powered

106
14/70

Endless conveyer

7
14/72.5

Wheeled

41
14/74.5

Girder

56
14/78

Miscellaneous

34
14/75

Pier

38
14/76

Fender

5
14/18

Suspension

44
14/22

Cables and cable clamps

50
14/19

Compound system

9
14/23

Constructive apparatus

15
14/20

Simple system

12
14/21

Towers and anchors

29
14/2.4

Transportable

101
14/2.6

Floating

26
14/2.5

Having launching means

33
14/2

Truss and arch

22
14/3

Truss

12
14/4

Arrangement

24
14/5

Adjustable

9
14/12

Both chords curved

3
14/9

Bowstring

4
14/10

Adjustable

9
14/7

Cantilever

7
14/8

Suspension

3
14/6

Deck

28
14/11

Intermediate catenary

1
 

Details

 
14/14

Connections

37
14/15

End shoes

1
14/13

Structure

27
 
 
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