US Patent Class 464
ROTARY SHAFTS, GUDGEONS, HOUSINGS, AND FLEXIBLE COUPLINGS FOR ROTARY SHAFTS



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Current as of: June, 1999
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  DF  CLASS NOTES
1  DF  SPEED RESPONSIVE DEVICE FOR ADJUSTING RELATIVE ROTATIONAL POSITION OF COUPLED MEMBERS
2  DF  .~ Actuated by fluid or electricity
3  DF  .~ Pivoted weight
4  DF  .~.~ Gear segment on pivoted weight
5  DF  .~.~ Pivotal movement opposed by compression of coil spring along its axis
6  DF  .~.~ Pivotal movement opposed by expansion of coil spring along its axis
7  DF  HAVING LUBRICATING MEANS
8  DF  .~ Lubricant impregnated into material
9  DF  .~.~ Metallic material
10  DF  .~ For overload release coupling
11  DF  .~ For coupling having torque transmitted via radially directed pin received in conforming aperture
12  DF  .~.~ Lubricant supplied to plural pins via common ring which encapsulates pins
13  DF  .~.~.~ Pin includes longitudinally extending internal passage
14  DF  .~.~ Pin includes longitudinally extending internal passage
15  DF  .~ For coupling having torque transmitted via a ball
16  DF  .~ For coupling having torque transmitted via intermeshing teeth
17  DF  HAVING HEATING OR COOLING MEANS
18  DF  FLEXIBLE COUPLING BETWEEN FLUID-CONDUCTING ROTARY SHAFTS (E.G., COUPLING BETWEEN SECTIONS OF DRILL STRING, ETC.)
19  DF  .~ Relative angular displacement of axes of shafts
20  DF  .~ Including member deformable by relative movement between shafts
21  DF  .~.~ Member is coiled spring
22  DF  HAVING CLEANING MEANS
23  DF  WITH AUXILLIARY INDICATOR OR ALARM
24  DF  FLUID COUPLING
25  DF  .~ For transmitting limited pulsating torque (e.g., fluid drive coupling for impulse tool)
26  DF  .~ Including piston axially movable in cylinder having axis coextensive with axis of rotation of coupled members
27  DF  .~ Including multiple piston-cylinder devices radially spaced from axis of rotation
28  DF  .~ Fluid confined in enclosure having flexible walls
29  DF  ELECTRICAL OR MAGNETIC COUPLING
30  DF  OVERLOAD RELEASE COUPLING
31  DF  .~ Including thermally responsive element
32  DF  .~ Torque transmitted via frangible element
33  DF  .~.~ Axially extending pin
34  DF  .~ Torque transmitted via radially spaced deformable roller
35  DF  .~ Torque transmitted via a ball
36  DF  .~.~ Axially biased
37  DF  .~ Torque transmitted via resiliently biased positive drive connection (e.g., cam and follower)
38  DF  .~.~ Axially biased
39  DF  .~.~.~ By spring coiled about axis of rotation
40  DF  .~ Torque transmitted via frictional engagement of coil spring
41  DF  .~ Torque transmitted via plural circumferentially spaced friction elements
42  DF  .~ Torque transmitted via frictional engagement of conical or frustoconical surfaces
43  DF  .~.~ With separate resilient member for biasing surfaces into engagement
44  DF  .~.~.~ Coil spring
45  DF  .~ Torque transmitted via frictional engagement of planar radially extending surfaces
46  DF  .~.~ With separate resilient member for biasing surfaces into engagement
47  DF  .~.~.~ Coil spring
48  DF  .~.~.~.~ Plural, circumferentially spaced coil springs
49  DF  COUPLING DEVICE INCLUDES ENDLESS CHAIN ENGAGED WITH CIRCUMFERENTIAL TEETH ON COUPLED MEMBERS
50  DF  COUPLING DEVICE INCLUDES ANGLED OR HINGED ROD HAVING OPPOSITE ENDS RELATIVELY RECIPROCABLE AXIALLY IN BORES IN SPACED COUPLED MEMBERS
51  DF  TORQUE TRANSMITTED VIA FLEXIBLE ELEMENT
52  DF  .~ With stationary housing
53  DF  .~.~ And threaded annulus surrounding terminal end of housing for attachment to auxiliary housing
54  DF  .~ Element coiled sinusoidally about axially spaced driving and driven members
55  DF  .~ Element is flaccid and operates in tension during torque transmission (e.g., belt, cable, etc.)
56  DF  .~.~ Element has circular cross section
57  DF  .~ Element has plural convolutions wound about rotational axis
58  DF  .~.~ Plural radially overlapping convoluted elements
59  DF  .~.~ Single element has plural radially overlapping convolutions
60  DF  .~.~ Convoluted element has noncircular cross section
61  DF  .~ Element is a spring coiled about centerline angularly related to or radially spaced from rotational axis
62  DF  .~.~ Plural springs
63  DF  .~.~.~ Centerline of springs axially spaced from each other along rotational axis
64  DF  .~.~.~ Plural superposed springs on common centerline
65  DF  .~.~.~ Centerline of springs radially spaced from and parallel to rotational axis
66  DF  .~.~.~ Opposite ends of spring are equidistant from rotational axis
67  DF  .~.~.~.~ Springs on circumferentially extending curved centerline
68  DF  .~.~.~.~ Springs positioned between axially spaced plates of one member and driven by other member extending radially between said plates
69  DF  .~ Plural flexible links connected to circumferentially spaced axially directed pins on drive and driven members
70  DF  .~ Element is annular liner within radially spaced pin-receiving opening
71  DF  .~.~ Axially directed pin
72  DF  .~.~.~ Plural axially spaced liners
73  DF  .~ Element positioned between intermeshing teeth on driving and driven members
74  DF  .~.~ Teeth on radially overlapping surfaces
75  DF  .~.~.~ Element is a continuous annulus extending around rotational axis
76  DF  .~.~ Plurality of disparate elements
77  DF  .~ Element is an open loop spring curved about rotational axis
78  DF  .~ Element is tube with slot through wall to provide flexibility
79  DF  .~ Element includes diverging wall portions defining annular groove completely surrounding rotational axis (e.g., bellows)
80  DF  .~.~ Nonmetallic
81  DF  .~ Plural circumferentially spaced elements
82  DF  .~.~ Extending between radially overlapping surfaces on driving and driven members
83  DF  .~.~.~ Nonmetallic
84  DF  .~.~ Elements are bowed leaf springs
85  DF  .~.~ Nonmetallic
86  DF  .~.~ Axially extending torsion bars
87  DF  .~ Nonmetallic element
88  DF  .~.~ Element is hollow sleeve surrounding rotational axis and connected at opposite ends to axially spaced torque transmitting surfaces on driving and driven members
89  DF  .~.~ Extending between radially overlapping surfaces on driving and driven members
90  DF  .~.~.~ Plural elements radially overlapping
91  DF  .~.~.~ Plural elements axially spaced along rotational axis
92  DF  .~.~ Annular element between and coincident with drive and driven members
93  DF  .~.~.~ Including means to receive radially spaced axially extending projection on drive and driven members
94  DF  .~.~.~.~ Laminated element or plural elements abutting or spaced along rotational axis
95  DF  .~.~.~.~.~ With disparate spacer between plural separable elements
96  DF  .~.~.~ Laminated element or plural elements abutting or spaced along axis of rotation
97  DF  .~ Element is a torsion bar having a longitudinal axis coincident with the rotational axis
98  DF  .~ Element is plate with external edge completely surrounding rotational axis (e.g., disc)
99  DF  .~.~ Plural axially spaced plates
100  DF  .~ Element is leaf spring
101  DF  .~.~ Bowed
102  DF  SEPARATE COUPLING DEVICE MOVABLE RADIALLY OF AXES OF TORQUE TRANSMITTING MEMBERS TO ACCOMMODATE PARALLEL, MISALIGNED AXES (E.G., OLDHAM COUPLING)
103  DF  .~ Coupling device includes rolling body for transmitting torque
104  DF  .~ Coupling device has aperture or groove for receiving complemenatry driving projection on torque transmitting members
105  DF  .~.~ Projection-receiving slot extends completely through thickness dimension of coupler
106  DF  COUPLING ACCOMMODATES DRIVE BETWEEN MEMBERS HAVING MISALIGNED OR ANGULARLY RELATED AXES
107  DF  .~ Coupling between wheel and vertically oriented shaft (e.g., millstone)
108  DF  .~.~ Wheel mounted on rolling body
109  DF  .~ Coupling includes relatively movable gear segments
110  DF  .~ Coupling transmits torque via semicylindrical segments separated by pivot pin (e.g., slipper bearing)
111  DF  .~ Tripod coupling
112  DF  .~ Coupling transmits torque via radially directed pin
113  DF  .~.~ With additional axially spaced torque-transmitting coupling which facilitates relative movement between members
114  DF  .~.~.~ Radially directed pin in each coupling
115  DF  .~.~.~.~ Pin slidable axially in slot
116  DF  .~.~.~.~.~ Axially spaced pin-carrying parts interconnected by pivotal head and socket centering joint
117  DF  .~.~.~.~ Plural pins in each coupling with pin ends spaced 90 degrees apart
118  DF  .~.~.~.~.~ Axially spaced pin-carrying parts interconnected by pivotal head and socket centering joint
119  DF  .~.~.~.~ Pins in sequential couplings oriented at right angles to each other
120  DF  .~.~ Pin slidable axially in slot
121  DF  .~.~.~ Pin carried by intermediate element and slidable axially in slots in both coupled members
122  DF  .~.~.~ Pin carries disparate sleeve engaged with slot walls
123  DF  .~.~.~.~ Sleeve rotatable about pin axis
124  DF  .~.~.~.~.~ Sleeve has spherical or semi-spherical bearing surface
125  DF  .~.~ Plural pins received in conforming apertures in ring
126  DF  .~.~.~ Split ring
127  DF  .~.~ With particular balancing means
128  DF  .~.~ With particular bearing cup surrounding pin end
129  DF  .~.~.~ Spherical or semi-spherical cup
130  DF  .~.~.~ And disparate device for securing cup to pin or receiver
131  DF  .~.~.~ And flexible seal
132  DF  .~.~ With particular bearing or bushing mounted on pin
133  DF  .~.~ With particular flexible seal
134  DF  .~.~ With particular yoke providing pin-receiving aperture
135  DF  .~.~.~ Split yoke
136  DF  .~.~ Plural pins carried by intermediate member with pin ends spaced 90 degrees apart
137  DF  .~ Coupling transmits torque via axially directed pin radially spaced from rotational axis
138  DF  .~.~ Particular pivotal mounting for pin
139  DF  .~ Coupling transmits torque via radially spaced ball
140  DF  .~.~ With additional axially spaced torque-transmitting coupling which facilitates relative movement between members
141  DF  .~.~ Ball mounted in groove for relative axial movement with respect to coupled member
142  DF  .~.~.~ Mounted for relative axial movement with respect to both coupled members
143  DF  .~.~.~.~ Grooves formed in radially overlapping elements
144  DF  .~.~.~.~.~ Intersecting grooves
145  DF  .~.~.~.~.~ With intermediate positioning cage for ball
146  DF  .~.~.~.~.~.~ Bottom wall of groove in outer member is parallel to axial centerline of outer member (e.g., internally grooved cylinder)
147  DF  .~ Torque transmitted via intermediate element
148  DF  .~.~ Element carries or receives hook on opposite ends for connection to drive and driven members (e.g., link chain)
149  DF  .~.~ Axially intermeshing teeth
150  DF  .~.~ Intermediate element located between overlapping surfaces on drive and driven members
151  DF  .~.~.~ Intermediate element is externally grooved or ribbed sphere
152  DF  .~.~.~ Plural circumferentially spaced intermediate elements
153  DF  .~.~ Intermediate element includes internal openings at opposite ends for receiving axially spaced ends on drive and driven members
154  DF  .~.~.~ Intermeshing teeth on element and members
155  DF  .~.~ Intermediate element includes external surface at opposite ends received in complementary openings in axially spaced ends of driving and driven members driven members
156  DF  .~.~.~ Intermeshing teeth on element and members
157  DF  .~ Torque transmitted via intermeshing teeth on drive and driven members
158  DF  .~.~ Teeth on radially overlapping surfaces
159  DF  .~.~.~ Spherical or semispherical surfaces
160  DF  COUPLING FACILITATES RELATIVE ROTARY DISPLACEMENT BETWEEN COUPLED MEMBERS
161  DF  .~ Members coupled via axially movable, resiliently biased intermediate element
162  DF  COUPLING FACILITATES RELATIVE AXIAL MOTION BETWEEN COUPLED MEMBERS
163  DF  .~ Coupling between rotary drive table and axially movable drill string
164  DF  .~.~ Coupler includes endless belt or chain run engageable with drill string and moveable in direction of axial advance
165  DF  .~.~ Coupler includes antifriction rolling body engageable with drill string
166  DF  .~.~.~ With screw device for adjusting radial position of rolling body
167  DF  .~ Coupler includes antifriction rolling body engageable with axially moveable member
168  DF  .~.~ Recirculating rolling bodies
169  DF  .~ Including spring to bias member in axial direction
170  DF  HOUSING
171  DF  .~ Rigid semispherical surface on one housing part slidably engaged with surface on mating housing part
172  DF  .~ Telescoping cylindrical housing members
173  DF  .~ Flexible housing
174  DF  .~.~ Helically coiled member
175  DF  .~.~ Corrugated structure
176  DF  .~ Pivotally mounted housing supported for movement between open and closed positions
177  DF  .~ Separably connected housings for separably connected shafts
178  DF  .~ With rolling body supporting shaft in housing
179  DF  SHAFTING
180  DF  .~ Particular vibration dampening or balancing structure
181  DF  .~ Nonmetalic shaft or component
182  DF  .~ With disparate device for coupling shaft to additional shaft or rotary body
183  DF  .~ Hollow or layered shaft
184  DF  GUDGEONS
185  DF  MISCELLANEOUS
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CROSS-REFERENCE ART COLLECTIONS
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900  DF  ELECTRICALLY INSULATIVE MEMBER
901  DF  RAPID ATTACHMENT OR RELEASE
902  DF  PARTICULAR MATERIAL
903  DF  .~ Nonmetal
904  DF  HOMOKINETIC COUPLING
905  DF  .~ Torque transmitted via radially extending pin
906  DF  .~ Torque transmitted via radially spaced balls