Did You Know...
...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.
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| Number | Title | Issue Date |
| 4893836 | Book binding connector and binding-debinding tool A binding member having a pair of spaced ratcheted-surfaced posts which includes a bifurcated rim separated by an open groove, and extending from a binding member head. The binding member head is insertible into a counterbore in a paper sheets stack bindi... | 01/16/1990 |
| 4887925 | Prong and tang binding system A prong or tang-type paper sheets binding system includes a cover marginal edge on which or over which the connector base and the prongs or tangs are abutted or bent with respect to the edge. An integral imperforate edge extension is provided which is fol... | 12/19/1989 |
| 4874186 | Paper sheets binding system A paper sheets binding system utilizes a two-part connector including a headed bifurcated inner ratcheted post binding member and a headed pawls-containing locking collar which is ratcheted down over the post member legs to cinch the heads either directly... | 10/17/1989 |
| 4743048 | Multi-fold adjustable binder, book, and method A binder for a stack of punched hole paper sheets utilizes various headed fastener members with a post insertable in the punched holes from one side of the stack. A post connector is utilized on the other side of the stack. The headed fastener members, no... | 05/10/1988 |
| 4730972 | Book binding method, paper sheets binder and adjustable spine A two-part binding system includes one or more bifurcated posts integrally extending from a clamping strip or member. The posts are inserted into one or more apertures in a stack of punched paper or other material and a second clamping strip having one or... | 03/15/1988 |
