US Patent Class 213
RAILWAY DRAFT APPLIANCES




Electronic
File
Wrappers


Electronic
Patent
Documents


Paper
Patent
Documents

Current as of: June, 1999
Click for Main Headings
Click DF for Definitions
Click for All Classes

Internet Version by PATENTEC © 1999       Terms of Use



Products
and
Services


  DF  CLASS NOTES
1 R  DF  MISCELLANEOUS
1 A  DF  .~ One-shot shock absorber
1.3  DF  COMBINED COUPLER AND ELECTRIC CONNECTOR
1.6  DF  .~ With additional circuit-making or breaking means
2  DF  LOCOMOTIVE AND TENDER
3  DF  .~ Locomotive to tender
4  DF  .~ Movable to inoperative position
5  DF  .~.~ With drawbar-lifting means
6  DF  .~ Pocket type
7  DF  CUSHIONED
8  DF  .~ Continuous
9  DF  .~ Combined with car end buffer
10  DF  .~ Single center sill
11  DF  .~ Bolster-positioned
12  DF  .~ Radially movable
13  DF  .~.~ Vertically
14  DF  .~.~.~ Combined horizontally
15  DF  .~.~ Truck-controlled
16  DF  .~.~ Hand-controlling devices
17  DF  .~.~.~ Combined uncoupling levers
18  DF  .~.~ Swing head
19  DF  .~.~.~ Centering devices
20  DF  .~.~ Centering devices
21  DF  .~.~.~ Drawbar carriers
22  DF  .~ Combined spring and friction
23  DF  .~.~ Preliminary spring
24  DF  .~.~.~ Shoes and wedges with casings
25  DF  .~.~ Springs only on draft
26  DF  .~.~ Differential spring compression
27  DF  .~.~.~ Rotating friction elements
28  DF  .~.~ Rotating friction elements
29  DF  .~.~ Interengaging friction springs
30  DF  .~.~.~ Plate springs
31  DF  .~.~ Friction casings
32 R  DF  .~.~.~ Shoes and wedges
33  DF  .~.~.~.~ Interleaved friction plates
34  DF  .~.~.~.~ Compound wedges
32 A  DF  .~.~.~.~ Plural spring
32 B  DF  .~.~.~.~ Retaining means on draft gear barrel
32 C  DF  .~.~.~.~ Draft gear assembly
35  DF  .~.~ Central friction post
36  DF  .~.~.~ Shoes and wedges
37  DF  .~.~ Transversely movable friction element
38  DF  .~.~.~ Transverse springs
39  DF  .~.~.~.~ Inwardly movable
40 R  DF  .~ Springs
41  DF  .~.~ Varying resistance
42  DF  .~.~ Tension
43  DF  .~.~ Fluid
44  DF  .~.~ Multiple
45  DF  .~.~.~ Tandem arrangement
46 R  DF  .~.~.~.~ Separate springs for buff and draft
46 A  DF  .~.~.~.~.~ Draft rod through cushion
47  DF  .~.~.~.~ With yokes
48  DF  .~.~.~.~.~ Opposed overlying plungers
49  DF  .~.~.~ Parallel arrangement
40 D  DF  .~.~ Interlocking parts
40 S  DF  .~.~ Special
50  DF  .~ Cooperating parts fixed to car
50.5  DF  .~.~ Draft key retainers
51  DF  .~.~ Draft sills
52  DF  .~.~.~ Parallel-spring arrangement
53  DF  .~.~.~ Tandem-spring arrangement
54  DF  .~.~ Cheek plates
55  DF  .~.~.~ Tandem-spring arrangement
56  DF  .~.~ Individual-follower stops
57  DF  .~.~.~ Combined bolster casting
58  DF  .~.~ Striking block
59  DF  .~.~.~ Resilient
60  DF  .~.~.~ Combined drawbar carrier
61  DF  .~.~ Drawbar carrier
62 R  DF  .~ Drawbars
63  DF  .~.~ Extensions
64  DF  .~.~ Connections to cushion
65  DF  .~.~.~ Friction casings
66  DF  .~.~.~ Links
67 R  DF  .~.~.~ Yokes
68  DF  .~.~.~.~ Longitudinally divided
69  DF  .~.~.~.~ Drawbar connections
70  DF  .~.~.~.~.~ Hooded
71  DF  .~.~.~.~.~.~ Pivotal
72  DF  .~.~.~.~.~ Pivotal
67 A  DF  .~.~.~.~ Special
62 A  DF  .~.~ Rotatable couplers
73  DF  CONTINUOUS
74  DF  RADIALLY MOVABLE
75 R  DF  COUPLINGS
76  DF  .~ Combined car and air train line
77  DF  .~ Counterpart
78  DF  .~.~ Link or bar type
79  DF  .~.~.~ Selective coupling element
80  DF  .~.~.~.~ Beveled link and swing catch
81  DF  .~.~.~.~.~ Arrowhead type
82  DF  .~.~.~.~ Hook and link
83  DF  .~.~.~.~.~ Bails
84  DF  .~.~.~.~ Hook and link combined
85  DF  .~.~.~.~ Headed link and shouldered slot
86  DF  .~.~.~.~ Pin and link
87  DF  .~.~.~.~.~ Swing pin
88  DF  .~.~.~ Hook and catch
89  DF  .~.~.~.~ Pivoted hooks
90  DF  .~.~.~.~.~ Horizontally swinging
91  DF  .~.~.~ Beveled link and swing catch
92  DF  .~.~.~.~ Arrowhead type
93  DF  .~.~.~ Hook and link
94  DF  .~.~.~.~ Bails
95  DF  .~.~.~ Hook and link combined
96  DF  .~.~.~ Headed link and shouldered slot
97  DF  .~.~.~.~ Rotary head or link
98  DF  .~.~.~ Pin and link
99  DF  .~.~.~.~ Swing pins
100 R  DF  .~.~ Interengaging hooks and knuckles
101  DF  .~.~.~ Arrowhead type
102  DF  .~.~.~.~ Plural
103  DF  .~.~.~ Transversely sliding bill
104  DF  .~.~.~ Horizontally swinging
105  DF  .~.~.~.~ Miller hooks
106  DF  .~.~.~.~.~ Movable bill
107  DF  .~.~.~.~ Star wheel
108  DF  .~.~.~.~ Plural
109  DF  .~.~.~.~ Janney type
110  DF  .~.~.~.~.~ Always in coupling position
111  DF  .~.~.~.~.~ Auxiliary and emergency
112  DF  .~.~.~.~.~.~ Transition construction and devices
113  DF  .~.~.~.~.~ Plural-tailed knuckles
114  DF  .~.~.~.~.~ Pinless knuckles
115  DF  .~.~.~.~.~ Knuckle openers
116  DF  .~.~.~.~.~.~ Springs
117  DF  .~.~.~.~.~.~ Gravity
118  DF  .~.~.~.~.~.~.~ Knuckles
119  DF  .~.~.~.~.~.~ Combined locks
120  DF  .~.~.~.~.~.~.~ Vertically movable and horizontally rotatable
121  DF  .~.~.~.~.~.~.~ Vertically movable and tilting
122  DF  .~.~.~.~.~.~.~ Vertically sliding
123  DF  .~.~.~.~.~.~.~.~ Pivotally-attached member
124  DF  .~.~.~.~.~.~.~ Pivoted or rotatable
125  DF  .~.~.~.~.~.~ Lock-operated
126  DF  .~.~.~.~.~.~.~ Vertically sliding locks
127  DF  .~.~.~.~.~.~.~.~ And rearwardly swinging
128  DF  .~.~.~.~.~.~.~.~ Vertically swinging levers
129  DF  .~.~.~.~.~.~.~ Vertically swinging locks
130  DF  .~.~.~.~.~.~.~ Horizontally sliding locks
131  DF  .~.~.~.~.~.~ Lock-operating
132  DF  .~.~.~.~.~.~.~ Continuing movement
133  DF  .~.~.~.~.~.~.~.~ Horizontally rotating shaft
134  DF  .~.~.~.~.~.~.~.~ Pivoted levers
135  DF  .~.~.~.~.~.~.~.~ Sliding
136  DF  .~.~.~.~.~.~.~.~.~ Vertically
137  DF  .~.~.~.~.~.~.~ Separate movement
138  DF  .~.~.~.~.~.~.~.~ Rotating and sliding
139  DF  .~.~.~.~.~ Gravity locks
140  DF  .~.~.~.~.~.~ Knuckle-attached
141  DF  .~.~.~.~.~.~ Vertically swinging
142  DF  .~.~.~.~.~.~.~ With lock set and anticreep
143  DF  .~.~.~.~.~.~.~ With lock set
144  DF  .~.~.~.~.~.~.~ With anticreep
145  DF  .~.~.~.~.~.~ Vertically sliding
146  DF  .~.~.~.~.~.~.~ With lock set and anticreep
147  DF  .~.~.~.~.~.~.~ With lock set
148  DF  .~.~.~.~.~.~.~ With anticreep
149  DF  .~.~.~.~.~ Horizontally sliding locks
150  DF  .~.~.~.~.~ Horizontally swinging locks
151  DF  .~.~.~.~.~ Contour
152  DF  .~.~.~.~.~ Knuckle and head interengagement
153  DF  .~.~.~.~.~ Vertical disengagement prevention
154  DF  .~.~.~.~.~ Guard-arm construction
155  DF  .~.~.~.~.~ Knuckle and knuckle pins
156  DF  .~.~.~.~.~ Knuckle-pin bottom retainers
157  DF  .~.~.~.~.~ Detachable ears
158  DF  .~.~.~.~.~ Lifter and lock-hole closures
159  DF  .~.~.~.~.~ Uncoupling devices
160  DF  .~.~.~.~.~.~ Emergency
161  DF  .~.~.~.~.~.~ Selectively movable
162  DF  .~.~.~.~.~.~ Pull rods, chains or ropes
163  DF  .~.~.~.~.~.~ Interengaging levers
164  DF  .~.~.~.~.~.~.~ Vertically swinging
165  DF  .~.~.~.~.~.~ Vertically swinging
166  DF  .~.~.~.~.~.~ Rotating horizontal shafts
167  DF  .~.~.~.~.~.~.~ Journaled to coupler head
168  DF  .~.~.~.~.~.~.~ Directly connected to lock
169  DF  .~.~.~.~.~.~.~ Horizontal link to lock
170  DF  .~.~.~.~.~.~.~ Vertical link to lock
171  DF  .~.~.~.~.~.~ Brackets
172  DF  .~.~.~ Vertically swinging
173  DF  .~.~.~.~ Vertical hook
174  DF  .~.~.~ Rotating
100 W  DF  .~.~.~ Willison coupler
*  DD  .~ Link or bar type
175  DF  .~.~ Hook and catch
176  DF  .~.~ Beveled link and wing catch
177  DF  .~.~.~ Arrowhead type
178  DF  .~.~ Hook and link
179  DF  .~.~.~ Pivoted hook
180  DF  .~.~.~.~ Multiple
181  DF  .~.~.~ Bails
182  DF  .~.~ Headed link and shouldered slot
183  DF  .~.~.~ Pivoted head
184  DF  .~.~.~ Rotating head or link
185  DF  .~.~ Beveled link and sliding catch
186  DF  .~.~.~ Arrowhead type
187  DF  .~.~ Beveled link and fixed catch
188  DF  .~.~ Pin and open link
189  DF  .~.~.~ Automatic pin moving
190  DF  .~.~.~.~ Swing pin
191  DF  .~.~.~.~.~ To coupling position
192  DF  .~.~.~ Pin supports
193  DF  .~.~.~.~ Tilting pin
194  DF  .~.~.~.~ Gravity
195  DF  .~.~.~.~.~ Combined link lifters and supports
196  DF  .~.~.~.~.~.~ Rollers
197  DF  .~.~.~.~.~ Pivoted latches
198  DF  .~.~.~.~.~.~ Pin-attached
199  DF  .~.~.~.~.~.~ Stirrups
200  DF  .~.~.~.~ Spring
201  DF  .~.~.~.~.~ Combined link lifters and supports
202  DF  .~.~.~.~.~ Horizontally sliding
203  DF  .~.~.~.~.~.~ Link-operated
204  DF  .~.~.~.~.~ Pivoted
205  DF  .~.~.~ Link lifters and supports
206  DF  .~.~.~.~ Opposed car
207  DF  .~.~.~.~ Levers
208  DF  .~.~ Links
209  DF  .~.~.~ End opening
210  DF  .~.~.~ Handled
211  DF  .~ Uncoupling devices
212  DF  .~.~ Central control
213  DF  .~.~ Operable from car top or side
214  DF  .~.~.~ Rotating vertical shaft
215  DF  .~.~ Operable from car top only
216  DF  .~.~ Rotating vertical shafts
217  DF  .~.~ Flexible
218  DF  .~.~ Vertically swinging lever
219  DF  .~.~ Rotating horizontal shafts
75 A  DF  .~ Operated by trackside mechanism
75 B  DF  .~ Mine car
75 TC  DF  .~ Toy train
75 D  DF  .~ Magnetic
75 GT  DF  .~ Glass table
220  DF  CAR-END BUMPERS OR BUFFERS
221  DF  .~ Resilient
222  DF  .~.~ Car platform type
223  DF  .~.~ Fluid
224  DF  SIDE-TRACK PUSH RODS