Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 4471338 | Thermal cycling switch A push-to-turn thermal cycling switch for regulating the wattage of a resistance type surface heating unit of a domestic cooking range of the electric type is disclosed. The duty cycle of the heating unit, and thus its heat output is regulated by the swit... | 09/11/1984 |
| 4398168 | Switching mechanism Electrically conductive paths are selectively engaged by a pair of electrical contacts that are carried in a pair of holders. Each holder is pivoted by an actuator. Each holder also carries a spring biased detent plunger that cooperates with V-shaped cavi... | 08/09/1983 |
| 4296396 | Manual electric switch with thermal release In a manual switch with thermal and magnetic release, the fixed pivots of a control member, of a latch, and of a transmission member coupled to the contacts, are disposed at the apices of a right-angled triangle, one side bounding the right angle being pa... | 10/20/1981 |
