Telephonic communications – Terminal – Housing or housing component
Patent
1989-12-13
1990-06-05
Ng, Jin F.
Telephonic communications
Terminal
Housing or housing component
381187, H04M 105
Patent
active
049320521
ABSTRACT:
A combined handset and headset comprises a cylindrical speaker housing (20) which fits into the pinna (46) and contains a speaker (38). The speaker housing has an upper extension (24) which in turn has an end housing or pinna clamping part (28) slidably mounted thereto. The slidable housing contains a crossbar (14) for resting against the rear side of the pinna. The slidable housing is spring urged to a compacted position against the pinna so that it can clamp the pinna between it and the speaker housing so that the unit will retain itself on the pinna. The slidable housing can be pulled back and locked in an extended position where the crossbar is far enough from the cylindrical housing that the crossbar will be clear of the pinna so that the set can be used as a handset. The pinna clamping part can be locked in its extended position and urged to its compacted position by means of a trough (42) with a curved bottom (48, 50o, 50i) which acts as a cam positioner, in cooperation with a spring-loaded roller (58). Alternatively the extended lock and clamping spring can comprise (a) a bowed leaf spring (84) on the slidable part over which rides a fixed roller (86) which is attached to the main body, or (b) a tension spring (98) or compression (112) spring and a flat cantilevered feeler spring (106) with an end pawl (108) and mating notch (110).
REFERENCES:
patent: D237090 (1975-10-01), Yanagawa
patent: 2474135 (1949-06-01), White
patent: 3280273 (1966-10-01), Flygstad et al.
patent: 3610841 (1971-10-01), Hutchings
patent: 3862378 (1975-01-01), Norris
patent: 4273969 (1981-06-01), Foley et al.
patent: 4335281 (1982-06-01), Scott et al.
patent: 4453050 (1984-06-01), Enokido
patent: 4529058 (1985-07-01), Emery
patent: 4754484 (1988-06-01), Larkin et al.
patent: 4821318 (1989-04-01), Wu
Telex Announcer's Earset Technical Data 4037-4, May 1976.
Telex Earset Specification Sheet, Form #381006, Apr. 1950.
Byrd Danita R.
Ng Jin F.
Pressman David
LandOfFree
Self-adjusting headset-handset combination does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Self-adjusting headset-handset combination, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-adjusting headset-handset combination will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-497856