US Patent Class 279
CHUCKS OR SOCKETS



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Current as of: June, 1999
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  DF  CLASS NOTES
2.01  DF  EXPANDING
2.02  DF  .~ Collet type
2.03  DF  .~.~ Fixed jaws and moving cam
2.04  DF  .~.~ Fixed cam and moving jaws
2.05  DF  .~ Jaws mounted on flexible member; i.e., diaphragm
2.06  DF  .~ Fluid-pressure actuator
2.07  DF  .~.~ Directly expanding jaws
2.08  DF  .~.~.~ Jaw is expansible chamber; i.e., bladder type
2.09  DF  .~.~ Expanding jaws via mechanical connection
2.1  DF  .~ Axially moving actuator
2.11  DF  .~.~ Wedge
2.12  DF  .~.~.~ Internal cone
2.13  DF  .~.~.~ With jaw positively interlocked with wedge; e.g., dovetail or T-slot
2.14  DF  .~.~.~ With resilient means contacting nonresilient jaw
2.15  DF  .~.~.~.~ Constricting band, annulus, or clip
2.16  DF  .~.~ Toggle
2.17  DF  .~.~ Axially compressible element expands radially
2.18  DF  .~.~ Lever
2.19  DF  .~ Rotary actuator
2.2  DF  .~.~ Clutch or self-actuating type
2.21  DF  .~ Jaw structure
2.22  DF  .~.~ Resilient
2.23  DF  .~.~ Ball or roller
2.24  DF  .~.~ Pivoted
3  DF  VACUUM
4.01  DF  WITH FLUID-PRESSURE ACTUATOR
4.02  DF  .~ With measuring, indicating or control means
4.03  DF  .~ Jaw is expansible chamber; i.e., bladder type
4.04  DF  .~ Pneumatic type
4.05  DF  .~ Jaws mounted on flexible member; i.e., diaphragm
4.06  DF  .~ Socket type
4.07  DF  .~.~ Collet
4.08  DF  .~.~.~ Fixed cam and moving jaws
4.09  DF  .~.~.~ Moving cam and fixed jaws
4.1  DF  .~ Radially reciprocating jaws
4.11  DF  .~.~ Fluid pressure directly moves jaws
4.12  DF  .~.~ Fluid pressure moves jaws via mechanical connection
5  DF  ANGULARLY ADJUSTABLE OR INDEXING
6  DF  ECCENTRIC
7  DF  THREADED GRIP
8  DF  LONGITUDINAL SCREW CLAMP
9.1  DF  SOCKET TYPE
14  DF  .~ Multiple alternative
16  DF  .~ Self-centering of floating
17  DF  .~.~ Radially reciprocating jaws
18  DF  .~.~ Transverse holder and setscrew
19  DF  .~ Lost motion
19.1  DF  .~.~ Swinging external yoke or detent
19.2  DF  .~.~.~ Rotary socket
19.3  DF  .~.~ Rotary socket
19.4  DF  .~.~ Spreading elements
19.5  DF  .~.~ Key retainer
19.6  DF  .~.~ Sleeve type retainer
19.7  DF  .~.~.~ Sleeve in socket
20  DF  .~ Fluid-conduit drill holding
20.1  DF  .~ Feed type
*  DD  .~ Self-grasping
*  DD  .~.~ Yielding grasping jaws
22  DF  .~.~.~ Ball or roller
23.1  DF  .~.~.~ Spring jaws
24  DF  .~.~ Yielding detent
*  DD  .~.~ One-way-clutch type
28  DF  .~.~.~ Wedge
29  DF  .~.~.~ Side detent
30  DF  .~.~.~.~ Ball or roller
32  DF  .~ Conical clamp threaded in socket
33  DF  .~ Transversely oscillating jaws
34  DF  .~.~ Screw actuated
35  DF  .~ Pivoted jaws
*  DD  .~.~ Moving-cam actuator
36  DF  .~.~.~ Threaded cam sleeve
37  DF  .~.~.~ Reciprocating cam sleeve
38  DF  .~.~ Fixed cam and moving jaws
39  DF  .~.~.~ Axial screw actuator
40  DF  .~.~.~ Threaded-sleeve actuator
*  DD  .~ Resilient split socket
42  DF  .~.~ Threaded cam sleeve
43  DF  .~.~ Reciprocating cam sleeve
43.1  DF  .~.~ Unitary
43.2  DF  .~.~.~ Split at one end only
43.3  DF  .~.~.~.~ Transverse screw actuator
43.4  DF  .~.~.~.~ Cam actuator
43.5  DF  .~.~.~ Split end to end
43.6  DF  .~.~.~ With jaw pads or insert
43.7  DF  .~.~ Nonresilient member biased by a resilient member
43.8  DF  .~.~ Resilient member reinforced by another resilient member
43.9  DF  .~ With means to exclude contaminants; e.g., seal, shield
44  DF  .~ One movable side
45  DF  .~.~ Sleeved
46.1  DF  .~ Spring biased jaws
46.2  DF  .~.~ Unitary
46.3  DF  .~.~.~ Split at one end only
46.4  DF  .~.~.~ Split at both ends
46.5  DF  .~.~.~ Split end to end
46.6  DF  .~.~.~ With jaw pads or insert
46.7  DF  .~.~ Nonresilient member biased by a resilient member
46.8  DF  .~.~ Resilient member reinforced by another resilient member
46.9  DF  .~.~ With means to exclude contaminants; e.g., seal, shield
*  DD  .~.~ Moving-cam actuator
47  DF  .~.~.~ Threaded sleeve and wedge
48  DF  .~.~.~ Threaded cam sleeve
49  DF  .~.~.~.~ Loose jaws
50  DF  .~.~.~ Reciprocating cam sleeve
51  DF  .~.~ Fixed cam and moving jaws
52  DF  .~.~.~ Threaded-sleeve actuator
53  DF  .~.~.~ Axial screw actuator
54  DF  .~.~ Loose jaws
55  DF  .~ Loose jaws
*  DD  .~.~ Moving-cam actuator
56  DF  .~.~.~ Threaded cam sleeve
57  DF  .~.~.~ Reciprocating cam sleeve
58  DF  .~.~ Fixed cam and moving jaws
59  DF  .~.~.~ Threaded sleeve and body
60  DF  .~ Obliquely guided reciprocating jaws
61  DF  .~.~ Threaded sleeve and jaw
62  DF  .~.~.~ Conical sleeve
63  DF  .~.~ Threaded central cone and jaw
64  DF  .~.~ Threaded sleeve and body
65  DF  .~.~ Reciprocating jaw advancing sleeve
66  DF  .~ Radially reciprocating jaws
67  DF  .~.~ Transverse-screw actuated
68  DF  .~.~.~ Interlaced jaws
*  DD  .~.~ Moving-cam actuator
69  DF  .~.~.~ Threaded cam sleeve
70  DF  .~.~.~ Threaded sleeve and wedge
71  DF  .~.~.~ Rotary eccentric-cam sleeve
72  DF  .~.~.~.~ Roller and rocking jaw
73  DF  .~.~.~.~ Worm actuated
74  DF  .~.~.~ Reciprocating cam sleeve
75  DF  .~.~.~.~ Ball or roller jaws
76  DF  .~ Side detent
77  DF  .~.~ Pivoted or rotary
78  DF  .~.~.~ Sleeved
79  DF  .~.~ Spring
80  DF  .~.~.~ Sleeved
81  DF  .~.~ Rotary cam sleeve
82  DF  .~.~ Reciprocating sleeve
83  DF  .~.~ Set screw
84  DF  .~.~ U-clamp
85  DF  .~.~ Plural bolt
86  DF  .~.~ Single transverse bolt
87  DF  .~.~ Longitudinal clamping wedge
89  DF  .~ Shouldered-tang holding
90  DF  .~.~ Cap
91  DF  .~.~.~ Screw
93  DF  .~ Tang offset within socket
94  DF  .~ Tang offset without socket
95  DF  .~ Bottomless
96  DF  .~.~ Friction grip
97  DF  .~ Transverse pin
99  DF  .~ Screw threaded
100  DF  .~.~ Nut lock
101  DF  .~.~.~ Threaded sleeve
102  DF  .~ Friction grip
103  DF  .~.~ Drill type
104  DF  .~ Barbed or pronged tang
105  DF  .~ Molded or cast-in tang
105.1  DF  .~ Adjustable length or size
106  DF  PIVOTED JAW
107  DF  .~ Cam-sleeve actuated
108  DF  .~ Internal-cone actuated
109  DF  .~ Toggle actuated
110  DF  RADIALLY RECIPROCATING JAWS
111  DF  .~ With indicator
112  DF  .~ Transverse-screw actuated
113  DF  .~.~ Annular rack
114  DF  .~ Spiral cam or scroll actuated
115  DF  .~.~ Worm
116  DF  .~.~ Bevel pinion
117  DF  .~ Rack-and-pinion actuated
118  DF  .~ Toggle actuated
119  DF  .~ Lever actuated
120  DF  .~.~ Internal cone
121  DF  .~ Wedge actuated
122  DF  .~ External-cone actuated
123  DF  .~ Jaws
124  DF  .~.~ With means to facilitate jaw removal
125  DF  WITH SAFETY FEATURE
126  DF  WITH MEASURING, INDICATING OR CONTROL MEANS
127  DF  DOUBLE ACTING
128  DF  WITH MAGNETIC OR ELECTROSTATIC MEANS
129  DF  BY CENTRIFUGAL FORCE
130  DF  .~ To counterbalance jaws
131  DF  .~ To grip tool or workpiece
132  DF  COMPENSATION FOR ECCENTRICITY
133  DF  WITH CENTERING MEANS
134  DF  SEPARATE CHUCK-ACTUATING POWER SOURCE
135  DF  .~ Self-contained
136  DF  FOR GEAR OR SPLINE MOLDING
137  DF  MORE THAN ONE SET OF GRIPPING MEANS
138  DF  TORSION MANDREL
139  DF  JAWS MOUNTED ON FLEXIBLE MEMBER; I.E., DIAPHRAGM
140  DF  MEANS TO PREVENT JAW LOOSENING
141  DF  MEMBER APPLIES AXIAL FORCE COMPONENT
142  DF  ACCESSORY OR COMPONENT
143  DF  .~ Adapter
144  DF  .~.~ Drive conversion
145  DF  .~.~ For particular tool or workpiece
146  DF  .~ Sliding cam chuck actuator
147  DF  .~ Chuck key
148  DF  .~.~ Safety feature; e.g., ejector, interlock
149  DF  .~.~ Key holding or attaching means
150  DF  .~.~ Nonseparable or built-in
151  DF  .~ Padded or cushioned jaw
152  DF  .~ Jaw insert
153  DF  .~.~ Machinable jaw
154  DF  .~.~.~ Locking or positioning means
155  DF  .~ Tool or workpiece ejector
156  DF  .~ Tool or work stop or locator
157  DF  .~ Protection means; e.g., cover, seal, overstress prevention, air blast
158  DF  MISCELLANEOUS
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CROSS-REFERENCE ART COLLECTIONS
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900  DF  ADAPTED FOR AUTOMATIC TOOL CHANGER
901  DF  CHUCK OR CHUCK JAW CHANGING MEANS
902  DF  KEYLESS TYPE SOCKET
903  DF  NEEDLE ROLLER TYPE SOCKET
904  DF  QUICK CHANGE SOCKET
905  DF  .~ With ball detent
906  DF  SELF GRASPING SOCKET
907  DF  WASHER TYPE JAW OR ACTUATOR