Abstract: A protection cover mechanism is disclosed. A hollow hinge tube is connected to a protective cover. A first hinge cover body is connected to the hollow hinge tube and includes a positioning rib. A spring is disposed in the first hinge cover body and abuts the hollow hinge tube. A hollow driven member is movably disposed in the first hinge cover body and abuts the spring. The spring is abutted between the hollow hinge tube and the hollow driven member. The hollow driven member includes a protrusion. The positioning rib is positioned on the hollow driven member, forcing the hollow driven member to move linearly with respect to the first hinge cover body. A fixing base includes a hollow tube fit on the hollow driven member and having an annular inner guide track with an undulated profile. The protrusion abuts the annular inner guide track.

Abstract: An electronic device and a protection cover thereof are provided. The electronic device includes a cap body, a main body, a flexible printed circuit board and a protection cover. The protection cover includes a receiving portion and a combining portion. The receiving portion has a first end and a second end, wherein the first end is coupled to an upper surface of the main body and the second end connects to the combining portion. As the cap body moves from a first position to a second position on the main body, the combining portion is coupled to a bottom surface of the cap body, so that when the cap body rotates in the second position, the protection cover moves along with the cap body and covers the flexible printed circuit board.

Abstract: A hookswitch actuator including an activating mechanism which maintains the hookswitch circuit of a telephone in an "on hook" state when the activating mechanism is in a first position, or in an "off hook" state when the activating mechanism is in the second position. The movement of the activating mechanism between the two positions is accomplished through the use of a shape memory alloy mechanism. The shape memory alloy mechanism is coupled to the activating mechanism in such a way that heating or cooling of the shape memory alloy mechanism moves the activating mechanism between its two positions. Control of the heating and cooling of the shape memory alloy mechanism is effectuated by controlling the amount of electric current passing through it.

Abstract: A low-power, integrated coin acceptor for a payphone containing audit circuitry is described. The integrated coin acceptor connects to the telephone tip, ring and ground lines and connects to a dumb or smart payphone chassis to provide both coin validation and audit functions. The integrated coin acceptor is compatible with the audit software used by the central office, and assures a seamless transition between coin acceptor operation, audit data recording and audit information transmission. Components related to the audit function include a line interface to the tip, ring, and ground lines, a DTMF transceiver, battery backed-up RAM memory, EEPROM memory, real time clock, and battery and control circuits for data retention. During audit interrogation activity, the integrated coin acceptor takes control of the phone line, but contains circuitry that will return dial-tone to the user if an off-hook event occurs.

Abstract: A high-speed information service system is provided which uses a unique identifier received during call setup to retrieve automatically a personalized profile for an information service subscriber. The identifier uniquely identifies the subscriber, thereby allowing the information retrieval process to begin immediately after the call is setup. The system utilizes Integrated Services Digital Networks (ISDN) signaling and temporary, "out-of-band" signaling to improve information retrieval capability. ISDN signaling permits electronic addressing of information requested by the subscriber, thereby eliminating the delays which accompany DTMF signal processing. Communications between an information service provider and an individual information source are conducted using out-of-band signaling. That is, call setup and information request are processed using a channel other than the channel which carries data between the information service provider, the information source and the subscriber.

Abstract: A device for detecting the hooking off of a telephone handset from a telephone set body, comprises an elongated part (8) provided with hinges (11) rotating around a longitudinal axis (10); a key (6), constituted by a lateral extension of said part and positioned so as to protrude through the upper wall of the body in a raised position; a return spring (15) for urging said key in a raised position; and a push-button switch (12) fixed on said part, the button (13) of which glides on an internal surface of the base to pass from a first state to a second state when the handset is hooked off and on.

Abstract: A telephone line switch actuating mechanism includes two identical parts, each having a portion which makes up a plunger, while the remaining portion is pivotally mounted for enabling the two parts to be assembled in an opposing relationship to each other into a mechanism such that depression of either plunger activates the other plunger and the telephone line switch.

Abstract: An improved telephone set of the type including a telephone body and a handset adapted to be placed on the former wherein the telephone set includes features which prevents displacement of the handset from the telephone body. The telephone body has a pair of engagement blocks incorporated therein of which part is projected outwardly of the telephone body and they are fitted into engagement recesses on the handset whereby the latter is firmly placed on the telephone body. At least the one engagement block has an engagement face which is adapted to come in contact with the engagement portion in the corresponding engagement recess, wherein each engagement block includes a pawl portion. Displacement of the handset occurs by displacing one of the pawl portions out of its respective engagement recess followed by displacement of the handset in a second direction which is different from the first direction which causes the displacement of the other pawl portion out of its respective engagement recess.

Abstract: A hook switch has a box-shaped body an an open end. Within the box-shaped body there is fixed at least one contact piece, and extending from the box-shaped body is an arm on which an actuator is rotatably mounted. A slider is received within the box-shaped body. This slider has a spring biased protrusion with a spherical top which extends through a hole in a cover of the box-shaped body and is engaged by the actuator and displaced against the spring bias. In the process, a movable contact piece mounted on the slider engages a corresponding fixed contact piece mounted within the box-shaped body.

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.

Abstract: A pop up telephone having a latch carried on a latch carrier with a slot. A cap having a post, the post capable of vertical travel within the slot. The post capable of engagement with the latch. A spring, contained below the cap and within the latch carrier is for moving the cap in a vertical direction. The body is for housing the latch carrier, the cap and hand set. The hand set resting on the cap and residing flush within the body. The hand set capable of popping out of the body after being pressed downward.

Abstract: A line switch for a telephone set comprises a lever rockably mounted in the tand for the set and having as a rear part a plunger fin received in a slot passing through the stand to a handset cradle on its top. The lever has at its front a head carrying on its underside a pair of metal leaf springs of which front portions form spring contacts disposed over corresponding electroconductive pads on a printed wiring board mounted within the stand. The lever is biased by a torque spring to yieldably hold the upper part of the fin in the cradle. Removal and replacement of a handset from and to the cradle actuates the lever to produce engagement and disengagement, respectively, of the spring contacts with their corresponding pads. Such spring contacts and pads form, electrically speaking, a line switch adapted upon such engagement and disengagement, respectively, to produce a "short" and an "open" of terminations at the set of the tip and ring leads therefor.

Abstract: A lock-releasing apparatus for use in a telepone set, having a lock-releasing button (61) for a locking mechanism which locks a handset (41) stationarily to a cradle (42). The lock releasing button also actuates a muting switch (71).

Abstract: An actuator assembly for operating a hook switch in a telephone set includes an actuating member with a cantilever leaf spring. The actuating member is pivotally mounted to the inner surface of the cover and is biased toward the inner surface of the cover by the cantilever leaf spring. In the absence of a handset, the actuating member partially protrudes through an aperture in the cover into a cradle formation. Placement of a handset into the cradle formation pivots the actuating member away from the inner surface of the cover to actuate the hook switch.

Abstract: A stand for a telephone set comprises an open-bottomed housing providing at its top a handset cradle to the rear of a housing upper wall slanting up towards the cradle and having a large aperture in it. A keypad has keys projecting outward within the aperture and, also, an upwardly slanting cover framed by the aperture. The keypad is secured to the housing by screws passing through support tabs at the side margins of the aperture and into the casing. A faceplate covers the heads of those screws. A printed wiring board with printed wire conductors and bulk telephone set components on, respectively, its upper and lower sides is secured beneath and to the keypad to be spaced from, and have the same upward slant as, the keypad. Mounted on the rear of the board is a line switch with a spring biased pivotable actuating lever.

Abstract: A cradle switch, which is used with a telephone apparatus having a housing with an opening and a cradle adjacent the opening, characterized by a housing having contact assemblies, an actuating lever pivotally connected onto the housing and a switch member pivotally connected to the actuating lever and extending through the opening and into the cradle of the apparatus. The pivotal connection is releasable and allows both axial and pivotal displacement and thus makes a separate step of capturing the switch member or plunger on a housing of a telephone superfluous.