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 |
| 7322826 | Soft tissue model A skeletal system comprising at least two bones and soft tissue. The soft tissue comprises a body and at least two protrusions. Each of the at least two protrusions have an end. At least one of the ends is attached to a first bone and at least one of the ends is att... | 01/29/2008 |
| 7126958 | Telecommunication system, method and subscriber unit for use therein A telecommunication system includes a digital switch, a local loop coupling the digital switch to a subscriber location, wherein a segment of the local loop includes copper twisted pair and wherein an asymmetrical digital subscriber line is carried by the local loop... | 10/24/2006 |
| 7083418 | Pediatric congenital heart defect repair model The present invention is directed to a model for teaching or illustrating surgical and/or medical technique, and having a base component representing tissue or an organ and several components structured and arranged to be couplable to and detachable from the base co... | 08/01/2006 |
| 4864751 | Telephone index The telephone index has a plurality of selection keys and a spring-operated drawer witha stack of index cards, which is held in the index housing by means of a locking device in such a way that on operating a selection key the drawer locking means is rele... | 09/12/1989 |
| 4685232 | Index device An indexing device having a container for holding a plurality of cards therein and a cover pivotally mounted to the container by means of a shaft. When the cover is opened by the force of a resilient spring, the card placed at a desired location is expose... | 08/11/1987 |
| 4412631 | Carousel card dispenser A dispenser for the controlled one at a time dispensing of a magnetic card to an operator who inserts the card into a magnetic card reader for entry of an active number in an "Electronic Point of Sale" advertising medium reaching a predetermined captive a... | 11/01/1983 |
| 4351125 | Telephone index A telephone index comprises a box stand on which a telephone can be placed and an index comprising a stack of cards in a drawer, any selected one of which can be presented for inspection upon pressing the respective one of a plurality of buttons. Levers a... | 09/28/1982 |
| 4187631 | Card index A telephone subscriber's card index includes a flat casing having a top, side walls and a front opening, a tray adapted to be pushed into and pulled out of the casing through said opening, and a pile of index cards supported on the tray and intended to ha... | 02/12/1980 |
| 4070776 | Tabletop directory casing with means for ready access to desired entries A directory casing comprising a base supporting an unbound stack of tab-indexed cards thereon, and a top cover pivotally coupled at its rear end to the base, with the tabs of the cards projecting forwardly out of the top cover. Upon manual depression of a... | 01/31/1978 |
| 4064643 | Underphone index The invention concerns indexes of the type which are intended to be placed under a domestic telephone to provide a library of telephone numbers with easy access. The index has an outer housing with a slideable drawer which carries a stack of cards carryin... | 12/27/1977 |
| 4058910 | Apparatus for teaching the structures and projection of arterial systems A housing is provided with an observation opening which exposes a three dimensional model of an arterial system. When a rear-lighted projection screen is placed over the observation opening, light from a projector within the housing casts a shadow of the ... | 11/22/1977 |
| 4058920 | Telephone number register An improvement in a telephone number register having a plurality of double levers in a drawer for positioning selected register cards, each of said levers including locking means for holding a lever in its selected position and automatically releasing the... | 11/22/1977 |
