US3661313A — Power device having improved feed mechanism

Claim 1

Independent Claim 241 words

A feed mechanism for advancing a collated strip of articles a predetermined distance including track means adapted to support said strip, movable first stop means for interrupting movement of said strip, advancing means for moving said strip when said first stop means is removed from the path of travel along said track, power means for actuating said advancing means, second movable stop means for controlling actuation of said advancing means said predetermined distance, the advancing means including a pair of finger members connected by suitable means in spaced relation, the finger members oscillating said predetermined distance from an initial position to a secondary position and back to said initial position, the finger members including protuberance means at one end engageable within complementary recesses in said strip, said protuberance means including an abrupt shoulder on the edge facing the direction of the advancement of said strip to said secondary position and a cam surface to retract said protuberance from the strip recess when said finger means is retracted to said initial position, apertured support engaging means spaced from said protuberance means and including an apertured flange integral with the connecting means and adapted to accept rod-like support means in sliding relation for rectilinear movement along said support means, said power means including a compression spring encircling said rod-like member and normally biased against said flange to urge the fingers into cooperation with said strip and said strip towards said first stop means.

Claim 2

Dependent Claim 241 words

A feed mechanism for advancing a collated strip of articles a predetermined distance including track means adapted to support said strip, movable first stop means for interrupting movement of said strip, advancing means for moving said strip when said first stop means is removed from the path of travel along said track, power means for actuating said advancing means, second movable stop means for controlling actuation of said advancing means said predetermined distance, the advancing means including a pair of finger members connected by suitable means in spaced relation, the finger members oscillating said predetermined distance from an initial position to a secondary position and back to said initial position, the finger members including protuberance means at one end engageable within complementary recesses in said strip, said protuberance means including an abrupt shoulder on the edge facing the direction of the advancement of said strip to said secondary position and a cam surface to retract said protuberance from the strip recess when said finger means is retracted to said initial position, apertured support engaging means spaced from said protuberance means and including an apertured flange integral with the connecting means and adapted to accept rod-like support means in sliding relation for rectilinear movement along said support means, said power means including a compression spring encircling said rod-like member and normally biased against said flange to urge the fingers into cooperation with said strip and said strip towards said first stop means.

Claim 3

Dependent Claim 65 words

A feed mechanism of the type set forth in claim 1 wherein said second stop means is movable from a first position to a second position, means connected to said finger means engageable with said second stop means and adapted to permit movement of said fingers from said initial position to said secondary position when said second stop means has moved to its second position.

Claim 4

Dependent Claim 46 words

A feeding mechanism of the type set forth in claim 2 wherein said connecting means is a lever pivotally supported intermediate its length and pivotally connected to said fingers adjacent one end, said lever adapted to bear on said second stop means adjacent its opposite end.

Claim 5

Dependent Claim 73 words

A feeding mechanism of the type set forth in claim 2 wherein said movable second stop means includes a spring urged member stronger than said power means and adapted to normally urge said fingers to their initial position, means to override the spring of said second stop means and to move the stop means to its second position whereby said power means can operate said fingers and strip toward said first stop means.

Claim 6

Dependent Claim 45 words

A feeding mechanism of the type set forth in claim 4 wherein removal of the overriding force against said second stop means permiTs the spring of said second stop means to overpower the finger advancing power means and return the fingers to their initial position.

Claim 7

Dependent Claim 45 words

A feeding mechanism of the type set forth in claim 5 wherein the overriding force against said second stop means is a pressure actuated plunger, the pressurized medium acting on said plunger also providing the motivating force for the movement of said first stop means.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1975-05-09	1975-11-08	1976-05-09	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1979-05-09	1979-11-08	1980-05-09	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1983-05-09	1983-11-08	1984-05-09	$7700.00	Window Closed / Lapsed

Power device having improved feed mechanism

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