US3580459A — Variable position means for holding a nonrotating…

Claim 1

Independent Claim 179 words

In friction welding apparatus for friction welding a nonrotating workpiece to a rotating workpiece, means for holding the nonrotating workpiece, said holding means comprising: support structure, a pair of members having workpiece engaging surfaces thereon movably mounted on said support structure, said workpiece engaging surfaces facing each other along a transverse axis relative to the axis of rotation of the rotating workpiece, and means for adjusting the relative positions of said members and said transversely facing workpiece engaging surfaces relative to said support structure for selectively clamping and unclamping the nonrotating workpiece, said adjusting means comprising transverse adjusting means for selectively and independently moving said members and said workpiece engaging surfaces toward or away from each other along said transverse axis and for selectively and independently moving said members and said workpiece engaging surfaces as a unit in either direction along said transverse axis, said adjusting means further comprising axial adjusting means for selectively and independently moving said members and said workpiece engaging surfaces as a unit in either direction along the axis of rotation of the rotating workpiece.

Claim 2

Dependent Claim 179 words

In friction welding apparatus for friction welding a nonrotating workpiece to a rotating workpiece, means for holding the nonrotating workpiece, said holding means comprising: support structure, a pair of members having workpiece engaging surfaces thereon movably mounted on said support structure, said workpiece engaging surfaces facing each other along a transverse axis relative to the axis of rotation of the rotating workpiece, and means for adjusting the relative positions of said members and said transversely facing workpiece engaging surfaces relative to said support structure for selectively clamping and unclamping the nonrotating workpiece, said adjusting means comprising transverse adjusting means for selectively and independently moving said members and said workpiece engaging surfaces toward or away from each other along said transverse axis and for selectively and independently moving said members and said workpiece engaging surfaces as a unit in either direction along said transverse axis, said adjusting means further comprising axial adjusting means for selectively and independently moving said members and said workpiece engaging surfaces as a unit in either direction along the axis of rotation of the rotating workpiece.

Claim 3

Dependent Claim 63 words

In friction welding apparatus for friction welding a nonrotating workpiece to a rotating workpiece, means for holding the nonrotating workpiece as defined by claim 1, said adjusting means further comprising means for selectively and independently moving said members and workpiece engaging surfaces in either direction along an axis perpendicular to both said transverse axis and the axis of rotation of the rotating workpiece.

Claim 4

Dependent Claim 74 words

In friction welding apparatus for friction welding a nonrotating workpiece to a rotating workpiece, means for holding the nonrotating workpiece as defined by claim 2, said adjusting means further comprising axial adjusting means for selectively and independently moving said members and said workpiece engaging surfaces as a unit in either direction along said rotational axis whereby said transverse axis, said perpendicular axis, and said rotational axis comprise a mutually perpendicular set of coordinate axes.

Claim 5

Dependent Claim 88 words

In friction welding apparatus for friction welding a nonrotating workpiece to a rotating workpiece, means for holding the nonrotating workpiece as defined by claim 1, said holding means further comprising a base member mounted on said support structure for movement relative thereto along the axis of rotation of the rotating workpiece and a pair of intermediate members mounted on said base member for movement relative thereto along said transverse axis, each of said members having workpiece engaging surfaces thereon mounted on a respective one of said intermediate members.

Claim 6

Dependent Claim 151 words

In friction welding apparatus for friction welding a nonrotating workpiece to a rotating workpiece, means for holding the nonrotating workpiece as defined by claim 4, said transverse adjusting means comprising screw means intermediate said Base member and said intermediate members, said adjusting means further comprising screw means intermediate said support structure and said base member for selectively and independently moving said base member in either direction along the axis of rotation and screw means intermediate a selected one of said members having workpiece engaging surfaces thereon and said respective intermediate member for selectively and independently moving said member in either direction along an axis perpendicular to both said transverse axis and the axis of rotation, and means connecting the other of said members having workpiece engaging surfaces thereon to said respective intermediate member for permitting said other member to float along said perpendicular axis in substantial alignment with said selected member.

Claim 7

Dependent Claim 140 words

In friction welding apparatus for friction welding a nonrotating workpiece to a rotating workpiece, means for holding the nonrotating workpiece as defined by claim 1, said transverse adjusting means comprising: a shaft having thereon axially spaced-apart oppositely threaded portions, means supporting said shaft for rotation about said transverse axis, a pair of internally threaded means transversely interconnected to respective ones of said members having workpiece engaging surfaces thereon receiving said right-hand and left-hand threaded portions such that rotation of said shaft in a first direction will move said workpiece engaging surfaces toward each other to engage a nonrotating workpiece and in a second direction will move said surfaces away from each other to release the workpiece, and means connected to said shaft to selectively shift said shaft and consequently said workpiece engaging surfaces in either direction along said transverse axis.

Claim 8

Dependent Claim 81 words

In friction welding apparatus for friction welding a nonrotating workpiece to a rotating workpiece, means for holding the nonrotating workpiece as defined by claim 6 wherein said means for selectively shifting said shaft axially in either direction comprises a fixed nut, an adjustment screw threaded into said nut and being axially displaceable by selective rotation thereof in either direction, and means interconnecting said screw and said shaft for transmitting axial displacement of said screw into corresponding axial displacement of said shaft.

Claim 9

Dependent Claim 82 words

In friction welding apparatus for friction welding a nonrotating workpiece to a rotating workpiece, means for holding the nonrotating workpiece as defined by claim 7 in which said means for selectively shifting said shaft axially further comprises means for releasably locking said screw against rotation, said means for transmitting axial displacement of said screw into corresponding axial displacement of said shaft cooperating with said screw when said screw is locked against rotation to axially secure said shaft in a fixed adjusted position.

Claim 10

Dependent Claim 141 words

In friction welding apparatus for friction welding a nonrotating workpiece to a rotating workpiece, means for holding the nonrotating workpiece as defined by claim 8 wherein said means releasably locking said screw comprises a rotatable part selectively displaceable between a locking position and a release position, and coacting means on said part and said nut for locking said part against rotation relative to said nut when said part is in its locking position and for permitting rotation of said part relative to said nut when said part is shifted to its release position, said part being relatively nonrotatably engaged with said screw in both of said release and locking positions to prevent rotation of said screw relative to said nut when in its locking position and to allow rotation of said screw relative to said nut when in its release position.

Claim 11

Dependent Claim 74 words

In friction welding apparatus for friction welding a nonrotating workpiece to a rotating workpiece, means for holding the nonrotating workpiece as defined by claim 10 wherein said coacting means on said part and said nut comprises cooperating sets of teeth respectively foRmed rigid with said part and said nut and being intermeshed when said part is in its locking position and being out of meshing engagement when said part is in its release position.

Claim 12

Dependent Claim 56 words

In friction welding apparatus for friction welding a nonrotating workpiece to a rotating workpiece, means for holding the nonrotating workpiece as defined by claim 10 wherein said part is of annular cross section and peripherally surrounds said screw, said part being displaceable between its locking and release position by axially shifting it relative to said screw.

Claim 13

Dependent Claim 50 words

In friction welding apparatus for friction welding a nonrotating workpiece to a rotating workpiece, means for holding the nonrotating workpiece as defined by claim 11 in which said means releasably locking said screw further comprises spring means peripherally surrounding said screw and biasing said part axially to its locking position.

Claim 14

Dependent Claim 100 words

In friction welding apparatus for friction welding a nonrotating workpiece to a rotating workpiece, means for holding the nonrotating workpiece as defined by claim 12, said holding means further comprising a base member mounted on said support structure for movement relative thereto along the axis of rotation of the rotating workpiece and a pair of intermediate members mounted on said base member for movement relative thereto along said transverse axis, each of said members having workpiece engaging surfaces thereon mounted on a respective one of said intermediate members, said transverse adjusting means interconnecting said base member and said intermediate members.

Claim 15

Dependent Claim 140 words

In friction welding apparatus for friction welding a nonrotating workpiece to a rotating workpiece, means for holding the nonrotating workpiece as defined by claim 13, said adjusting means further comprising screw means intermediate said support structure and said base member for selectively and independently moving said base member in either direction along the axis of rotation of the rotating workpiece and screw means intermediate a selected one of said members having workpiece engaging surfaces thereon and said respective intermediate members for selectively and independently moving said member in either direction along an axis perpendicular to both said transverse axis and the axis of rotation, and means connecting the other of said members having workpiece engaging surfaces thereon to said respective intermediate member for permitting said other member to float along said perpendicular axis in substantial alignment with said selected member.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1974-05-24	1974-11-23	1975-05-25	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1978-05-24	1978-11-23	1979-05-25	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1982-05-24	1982-11-23	1983-05-25	$7700.00	Window Closed / Lapsed

Variable position means for holding a nonrotating workpiece in friction welding apparatus

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