Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 4313150 | Latching lever for printed circuit boards A latching lever for aiding insertion, retention and removal of PCB's is pivoted on a PCB and has an operating handle, a pair of arms which straddle the PCB and latch the PCB within the frame when fully inserted, and a camming piece which pivotably engage... | 01/26/1982 |
| 4197572 | Device for engagement and disengagement of printed circuit cards A device for engaging in and disengaging printed circuit cards from the associated card holding frame is provided, which comprises at least an operating lever and at least a card guide element having at each of its ends a head portion, the guide element h... | 04/08/1980 |
| 4151580 | Circuit board assembly with disconnect arm A set of circuit boards are mounted side by side and electrical connection is made to terminal pads disposed along one edge of each circuit board by connectors which are carried by swing arms. The swing arms are rotatably mounted on a support rod which al... | 04/24/1979 |
| 4096548 | Mounting structure for a printed board A mounting structure for a printed circuit board comprises a rack frame having guide rails to receive the circuit board. The circuit board is retained in fixed position in the rack frame by a leaf spring which is flexibly mounted on the circuit board and ... | 06/20/1978 |
| 4089042 | Support for hybrid substrate carrying electrical circuit patterns and elements A substrate carrying electrical circuit patterns and elements is supported in an upright position on a printed circuit board by a clip so as to restrict rotational movement of the substrate from that position when pins and plated through holes on the subs... | 05/09/1978 |
| 4064551 | Apparatus for insertion and withdrawal of printed circuit boards into and from mounting frames Printed circuit boards for mounting in a mounting frame, as in telecommunications systems, have a faceplate mounted on the front edge of the board by means of a flange extending along one edge of the faceplate. At one end of the faceplate a slot is formed... | 12/20/1977 |
