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| Number | Title | Issue Date |
| 7246982 | Bookbinding coil insertion machine A machine for inserting plastic pre-formed helical coils into aligned holes at an edge of respective collated books for binding the books is adjustable to accommodate different thickness books and respective different diameter and pitch of coil. The machine has a pl... | 07/24/2007 |
| 6942441 | Method and apparatus for inserting a spiral binder Sheets of paper are commonly held together with a spiral coil, which coil is inserted by a machine with at least one rotating spindle thereon. The spindle receives a spiral binder in a male to female relationship. As the spindle rotates the spiral binder, the spiral... | 09/13/2005 |
| 6868872 | Apparatus for coupling stacked sheets Apparatus for introducing magnetic spirals into rows of neighboring perforations in the spines of stacks of overlapping sheets which are to form discrete calendars, memo pads or analogous commodities employs an elongated guide for a continuous magnetic coil spring. ... | 03/22/2005 |
| 6527016 | Automated spiral binding machine The automated machine includes exchangeable spacing assemblies from which the positions of the various rollers, as well as the curve of the perforations in the stack(s) of sheets are determined for a spiraling a given coil size into the stack of sheets. V... | 03/04/2003 |
| 5782273 | Dual lacing wire mechanism for a coil spring assembly machine A coil spring assembly machine for lacing coil springs together to form a coil spring assembly, which machine includes clamping jaws for clamping together portions of adjacent rows of coil springs in at least one of a top and bottom plane of the coil spri... | 07/21/1998 |
| 4267865 | Apparatus for producing coils An apparatus is provided for producing coils in the course of a process for the production of binding coils which are to be introduced directly into a row of holes in a pack of sheets. The apparatus has a winding spindle which is surrounded by the coil pr... | 05/19/1981 |
| 4143686 | Coil binding machine An improvement in coil binding machines of the type having front and rear clamps for the book spine during insertion of the spiral wire. The improved machine permits the book to be placed in position for clamping with the operator either sitting or standi... | 03/13/1979 |
