Telephonic communications – Terminal – Switch or switch actuator structure
Patent
1986-04-18
1988-12-06
Brown, Thomas W.
Telephonic communications
Terminal
Switch or switch actuator structure
379424, H04M 108
Patent
active
047900083
ABSTRACT:
A telephone stand has a housing with a cradle in its top for a handset adapted when placed in the cradle to depress a pair of laterally spaced plungers passing through holes in the housing down into its interior. A line switch is disposed in the housing below and laterally between the plungers. The plungers are coupled to the switch by a Y-shaped piston comprising a crosshead spanning the lateral spacing between the plungers, a pair of tines projecting upwards from laterally opposite ends of the crosshead and having vertical bores therein in which lower portions of the plungers are received, and a laterally central stem extending down from the crosshead and having camming surfaces thereon adapted upon downward displacement of the piston (by downward driving of either of both of the plungers) to wedgingly displace resilient blades in the switch to change switch conditions thereof. A spring passes up through a hollow in the stem to urge the piston upwards and impart to it a floating support which is stabilized by the plunger portions in the tine bores. The tines have upwardly and outwardly facing "L" shaped notches formed in their upper ends to prevent jamming of the downward displacement of the piston when only one of the plungers is driven down.
REFERENCES:
patent: 1917724 (1933-07-01), Kvaal
patent: 2559651 (1951-07-01), McLarn
patent: 3488458 (1970-01-01), Tolman
American Telephone and Telegraph Company
AT&T Information Systems Inc.
Brown Thomas W.
Kip, Jr. R. F.
Newman Harry L.
LandOfFree
Telephone line switch apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Telephone line switch apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Telephone line switch apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1497665