Kevin L Engelbert

US Patent:

D3766071, Dec 17, 1996

Filed:

Oct 6, 1995

Appl. No.:

D/045052

Inventors:

John H. Mar - Seattle WA
Kevin L. Engelbert - Mukilteo WA
Mark E. Hastings - Mukilteo WA
Randy C. Peterson - Mukilteo WA

Assignee:

Unicoil, Inc. - Norcross GA

US Classification:

D15127

US Patent:

59316233, Aug 3, 1999

Filed:

Oct 10, 1996

Appl. No.:

8/728623

Inventors:

Mark E. Hastings - Mukilteo WA
Randy C. Peterson - Mukilteo WA
Kevin L. Engelbert - Mukilteo WA
John H. Mar - Seattle WA

Assignee:

Unicoil, Inc. - Norcross GA

International Classification:

B42B 510

US Classification:

412 39

Abstract:

An apparatus for spiral binding a stack of papers together as a unit. The apparatus includes a coil feeder for feeding a spiral coil into the holes in the stack of papers, a pin extension and retraction mechanism, a coil cutter mechanism, and a paper thickness measuring and sizing mechanism. The spiral binding unit includes an aperture through which a spiral coil is inserted between a feed shaft and a rotatably mounted roller. The roller may be rotated in a pulsed manner. As the coil is inserted, the roller pushes the spiral coil into contact with the feed shaft. As the roller rotates, the coil is guided around a plurality of spiral guides that cause the coil to spiral into the holes in the stack of paper. The guides and any other surfaces which the end of the coil contacts along its path may have chamfered edges. The pin extension and retraction mechanism includes a plurality of curved locator pins that are movable between an extended and a retracted position.

US Patent:

56953089, Dec 9, 1997

Filed:

Oct 6, 1995

Appl. No.:

8/539848

Inventors:

Mark E. Hastings - Mukilteo WA
Randy C. Peterson - Mukilteo WA
Kevin L. Engelbert - Mukilteo WA
John H. Mar - Seattle WA

Assignee:

Unicoil, Inc. - Norcross GA

International Classification:

B42B 510

US Classification:

412 39

Abstract:

An apparatus for spiral binding a stack of papers together as a unit. The apparatus includes a spiral binding unit for feeding a spiral coil into the holes in the stack of papers, a pin extension and retraction mechanism, a coil cutter mechanism, and a paper thickness measuring and sizing mechanism. The spiral binding unit includes an aperture through which a spiral coil is inserted between a feed shaft and a rotatably mounted roller. As the coil is inserted, the roller pushes the spiral coil into contact with the feed shaft. As the roller rotates, the coil is guided around a plurality of spiral guides that cause the coil to spiral into the holes in the stack of paper. The pin extension and retraction mechanism includes a plurality of locator pins that are movable between an extended and a retracted position. In the extended position, the pins extend up through the holes in the stack of papers. The locator pins are mounted on pivotally mourned levers.