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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

30
14/26

Abutments and anchorages

13
14/25

Compound

10
14/77.1

Bridge construction method

175
14/77.3

Pier

26
14/74

Covering

12
14/73

Deck

186
14/73.1

Joint

89
14/31

Draw

7
14/47

Aprons

2
 

Bascule

 
14/36

Fixed pivot

5
14/37

Hinged sections

5
14/38

Rack and pinion

2
14/41

Locking devices

6
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

1
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

1
14/52

Vertically sliding

0
14/53

Vertically swinging

3
14/43

Horizontally sliding

5
14/44

Boat operated

0
14/45

Lazy tongs

1
14/42

Lift

4
14/46

Locking devices

4
14/49

Signals

1
14/32

Swing

3
14/34

Boat operated

3
14/35

End supports and locking devices

5
14/33

Hand or motor operated

0
14/73.5

Expansion device (e.g., bearing pad)

89
14/27

Floating

60
14/28

Adjustable height

6
14/29

Draw

1
14/30

Locking

1
14/69.5

Gangway, ramp, or dock leveler

486
14/71.1

Attached

408
14/71.3

With lift means

274
14/71.5

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

184
14/71.7

Hydraulic powered

111
14/70

Endless conveyer

9
14/72.5

Wheeled

50
14/74.5

Girder

86
14/78

Miscellaneous

49
14/75

Pier

55
14/76

Fender

7
14/18

Suspension

51
14/22

Cables and cable clamps

64
14/19

Compound system

11
14/23

Constructive apparatus

21
14/20

Simple system

13
14/21

Towers and anchors

34
14/2.4

Transportable

120
14/2.6

Floating

34
14/2.5

Having launching means

45
14/2

Truss and arch

23
14/3

Truss

17
14/4

Arrangement

29
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

34
14/11

Intermediate catenary

2
 

Details

 
14/14

Connections

41
14/15

End shoes

1
14/13

Structure

32
 
 
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