| Class Number |
Class Name |
No. of Patents |
| 472/128 |
Aquatic |
154 |
| 472/129 |
Body-supporting buoyant device |
47 |
| 472/133 |
Body attached, worn, or carried |
26 |
| 472/116 |
Body slide |
99 |
| 472/117 |
Water slide |
139 |
| 472/127 |
Body-supporting simulated log-rolling device (i.e., birling device) |
5 |
| 472/136 |
Building or part thereof |
43 |
| 472/51 |
For perpetrating practical joke or initiation ceremony |
22 |
| 472/56 |
Produces unexpected noise, vibration, or electric shock |
24 |
| 472/52 |
Unexpectedly expels fluid or powder (e.g., into face of victim, etc.) |
13 |
| 472/53 |
And produces unexpected noise |
3 |
| 472/54 |
Unexpectedly falls apart or projects movable or free part |
21 |
| 472/55 |
User contacted by attached projected part |
4 |
| 472/50 |
Having trip-release supporting person against gravity |
29 |
| 472/57 |
Illusion or stage device |
44 |
| 472/58 |
Alternative scenes provided by reflection from and transmission through transparent mirror |
22 |
| 472/73 |
Card trick illusion |
6 |
| 472/74 |
Illusion caused by abnormal interior building structure appearing normal |
7 |
| 472/71 |
Illusion caused by apparent appearance or disappearance |
31 |
| 472/72 |
Illusion caused by apparent change in color, printed matter, surface texture, or rigidity |
18 |
| 472/68 |
Illusion caused by apparent levitation |
14 |
| 472/69 |
Illusion caused by apparent penetration or severance |
15 |
| 472/63 |
Illusion caused by mirror |
54 |
| 472/70 |
Illusion caused by simulation of or attachment to human body part |
22 |
| 472/64 |
Illusion caused by sound imitation or effect |
24 |
| 472/61 |
Illusion caused by video, projected picture, or special light effect |
74 |
| 472/65 |
Illusion caused by visual imitation of event occurring in nature (e.g., rain, snow, fire, etc.) |
58 |
| 472/62 |
Maze or labyrinth |
22 |
| 472/59 |
Person experiences illusion of being in motion (e.g., travel simulation, etc.) |
77 |
| 472/60 |
By use of video or projected picture |
99 |
| 472/66 |
Pyrotechnic display |
9 |
| 472/67 |
Simulation of self-propelled object in liquid filled container (e.g., cartesian diver) |
11 |
| 472/75 |
Stage apparatus or setting |
22 |
| 472/80 |
Aerial suspension device |
8 |
| 472/76 |
Having rapid movement |
1 |
| 472/81 |
Prop |
10 |
| 472/84 |
Simulates animal |
2 |
| 472/83 |
Simulates vehicle |
4 |
| 472/82 |
Tank |
4 |
| 472/77 |
Shifting scenery or curtain |
20 |
| 472/79 |
Guide, brace, or clip |
8 |
| 472/78 |
Hoisting apparatus |
16 |
| 472/134 |
Inflatable or pneumatic |
67 |
| 472/137 |
Miscellaneous |
77 |
| 472/135 |
Occupant operated rocking, oscillating, or bouncing device |
63 |
| 472/131 |
Occupant support translatable along vertical path |
43 |
| 472/132 |
Operated by or using live animal |
0 |
| 472/49 |
Parachute-drop simulator |
19 |
| 472/85 |
Racetrack |
41 |
| 472/86 |
For nonhuman animal (e.g., horse racetrack, etc.) |
17 |
| 472/87 |
For dog |
8 |
| 472/95 |
Rockable animal simulation having rider seat means (e.g., rocking horse, etc.) |
18 |
| 472/101 |
Combined with disparate device |
11 |
| 472/98 |
Having animal sound simulation |
9 |
| 472/102 |
Having arcuate rocking base |
22 |
| 472/99 |
Having relatively movable animal part |
9 |
| 472/100 |
Having safety feature |
9 |
| 472/103 |
Having spring support |
20 |
| 472/104 |
Coiled type |
14 |
| 472/105 |
Plural coiled springs |
19 |
| 472/96 |
With power or externally operated rocking means |
7 |
| 472/97 |
Motor operated (e.g., mechanical bull, etc.) |
20 |
| 472/1 |
Roundabout |
11 |
| 472/4 |
And occupant propelled seesaw |
4 |
| 472/5 |
Seesaw operated drive structure helps maintain roundabout motion |
3 |
| 472/47 |
Having carrier rotating about an axis having varying angular orientation |
24 |
| 472/44 |
Having carrier rotating about horizontal axis |
21 |
| 472/45 |
Having suspended occupant or article carriage (e.g., ferris wheel, etc.) |
19 |
| 472/46 |
About plural discrete, horizontal axes |
8 |
| 472/29 |
Having carrier rotating about vertical axis (e.g., merry-go-round, etc.) |
44 |
| 472/31 |
About plural discrete, vertical axes |
11 |
| 472/30 |
And about horizontal axis (e.g., turntable supported ferris wheel, etc.) |
15 |
| 472/40 |
Disk, ring, or bowl |
6 |
| 472/41 |
Concentric arrangement |
0 |
| 472/42 |
Employing occupant or article carriage moving repeatedly up and down |
3 |
| 472/32 |
Suspended occupant or article carriage type |
11 |
| 472/34 |
Carriage moves repeatedly up and down |
6 |
| 472/33 |
Circularly traveling, centrifugal swing |
12 |
| 472/35 |
Rotating platform |
5 |
| 472/39 |
Using cantilevered arm arrangement to repeatedly move occupant or article up and down |
5 |
| 472/36 |
Using individual occupant or article carriage to ride on stationary track or platform |
11 |
| 472/38 |
Outwardly varying path |
1 |
| 472/37 |
Vertically undulating track or platform |
7 |
| 472/3 |
Having feature for facilitating transport by vehicle structure |
28 |
| 472/28 |
Having freely moving occupant or article carriage on turning platform |
6 |
| 472/27 |
Having occupant or article carriage mounted propulsion means |
12 |
| 472/13 |
Marine |
34 |
| 472/43 |
Occupant or article carriage follows stationary, horizontally winding, track or platform |
34 |
| 472/14 |
Occupant propelled |
35 |
| 472/19 |
By roundabout mounted drive structure used to maintain motion |
7 |
| 472/24 |
Cooperating gears |
4 |
| 472/22 |
Endless belt or chain |
7 |
| 472/21 |
Occupant bearing travel wheel driven by crank structure (e.g., pedaled cycle, etc.) |
13 |
| 472/20 |
Occupant support pivotally suspended from above |
3 |
| 472/23 |
Ratchet |
5 |
| 472/16 |
Having carrier rotating about horizontal axis |
15 |
| 472/17 |
And orthoganal axis intersecting therewith |
7 |
| 472/18 |
Having carrier rotating about stationary inclined axis |
10 |
| 472/25 |
Having hemispherically shaped base |
13 |
| 472/26 |
Having traveling wheel or roll |
13 |
| 472/15 |
Trainer for foot travel (e.g., for walking, skating, etc.) |
14 |
| 472/6 |
Powered toy type |
25 |
| 472/12 |
Article travels over stationary track or platform |
10 |
| 472/7 |
Having article completely supported by rotating tether, arm, or suspending structure |
23 |
| 472/8 |
Article carried propulsion means |
4 |
| 472/10 |
Electric motor |
14 |
| 472/9 |
Having altitude control structure |
10 |
| 472/11 |
Having altitude control structure |
9 |
| 472/2 |
With structure for causing reciprocal translation of roundabout along vertical path (e.g., elevator, etc.) |
12 |
| 472/126 |
Sandbox type |
23 |
| 472/106 |
Seesaw |
22 |
| 472/115 |
Collapsible |
1 |
| 472/108 |
Foot, hand, or seat operated |
8 |
| 472/114 |
Having arcuate base |
9 |
| 472/112 |
Having counterbalance means |
8 |
| 472/111 |
Having horizontally maintained seat |
4 |
| 472/109 |
Having safety feature |
6 |
| 472/107 |
Motor operated |
1 |
| 472/110 |
One person type |
14 |
| 472/113 |
Spring assisted |
7 |
| 472/130 |
Simulates aircraft or space vehicle or simulates the movement thereof |
73 |
| 472/88 |
Surface for wheeled or gliding vehicle |
40 |
| 472/90 |
For foot-attached gliding vehicle (e.g., ski slide, ice skating surface, etc.) |
85 |
| 472/91 |
Surface moves as a whole or comprises rotatable or rollable elements |
18 |
| 472/89 |
For wheeled vehicle (e.g., for bicycle, roller skate, etc.) |
54 |
| 472/92 |
Surface or enclosure for athletic or exhibition event (e.g., arena, track, court, playing field, etc.) |
161 |
| 472/93 |
Fight ring |
4 |
| 472/94 |
Walled enclosure (e.g., racquetball or paddle tennis court, etc.) |
59 |
| 472/118 |
Swing |
209 |
| 472/125 |
For plural occupants |
58 |
| 472/124 |
Having foot operator with separate suspender |
3 |
| 472/120 |
Having hand and foot operator |
17 |
| 472/121 |
Having hand operator |
4 |
| 472/122 |
Cable grasp |
0 |
| 472/123 |
Pulley mounted |
1 |
| 472/119 |
Motor operated |
101 |
| 472/48 |
Walkway having movable floor or stair step |
2 |
