| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Methods of manufacturing tactile switch for keyboards and the like | US558481 | 1975-03-14 | US4067102A | 1978-01-10 | Gideon A. DuRocher; Daniel J. DuRocher |
| A tactile switch plate for a keyboard member has a planar body portion provided with a plurality of outwardly deformed carrier portions corresponding in number and spacing to the number and spacing of the keys of the keyboard. Each of the carrier portions is resiliently flexible for movement toward the plane of the body and each carrier portion carries a preferably elastomeric switching member that is adapted to bridge the conductors and establish an electrical circuit between the conductors. The plate and switching members are produced by a molding process and the elastomeric switching members are cured by heat. | ||||||
| 182 | Switch forms for connecting one terminal to a plurality of other terminals | US3688066D | 1970-12-30 | US3688066A | 1972-08-29 | ADELSON ALEXANDER M; SWARTZ JEROME; TOMASULAO WALTER M JR |
| A switch for electrically connecting a first terminal with a plurality of other terminals. A contact movable into and out of electrical engagement with a plurality of base contacts is employed. The movable contact may comprise physically parallel wires affixed to a flexible plate, as well as wires which radiate radially outwardly from a point. The physically parallel wires may be inclined to the base contacts or the base contacts may be of different thicknesses to achieve sequential contacting of the base contacts by the movable contact. The base contacts may be any convenient shape, or in the form of concentric spirals or interspersed parallel segments or adjacent triangular-shaped segments.
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