Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7600444 | Operating device An operating device having a rotary knob capable of rotation operations exhibits compatibility between speed and precision in operation and does not require use of a plurality of rotary knobs. In the operating device (1) including the rotary knob (4) a... | 10/13/2009 |
| 7286073 | Device for detecting operation of operator on sound control apparatus Knob-type operator provided on an operation section is provided with a switch mechanism that switches between ON and OFF states in response to depressing operation of the operator along the rotation axis of the operator. Operator operation detection circuit outputs,... | 10/23/2007 |
| 6993990 | Operating device An operating device having a rotary knob capable of rotation operations exhibits compatibility between speed and precision in operation and does not require use of a plurality of rotary knobs. In the operating device (1) including the rotary knob (4) a... | 02/07/2006 |
| 6973848 | Operating device An operating device having a rotary knob capable of rotation operations exhibits compatibility between speed and precision in operation and does not require use of a plurality of rotary knobs. In the operating device (1) including the rotary knob (4) a... | 12/13/2005 |
| 6918313 | Operating device An operating device having a rotary knob capable of rotation operations exhibits compatibility between speed and precision in operation and does not require use of a plurality of rotary knobs includes a rotation detecting device for detecting the rotated angle of th... | 07/19/2005 |
| 5180050 | Pushbutton rotary switch A switch actuator mounted in a housing for axial and rotary movement operates a rotary switch on the actuator axis through an axial lost motion connection. A pushbutton switch offset from the axis is engaged by a semi-circular plate radially extending fro... | 01/19/1993 |
| 4555958 | Flip-down pushbutton end caps for a radio tuner Improved pushbutton end caps of a mechanical tuner pushbutton assembly for use on a radio receiver whereby a portion of each end cap is pivotable to two orthogonal orientations by manual depression on two defined areas displaced above and below the pivot ... | 12/03/1985 |
| 4433588 | Clutch mechanism A bearing mechanism for clutch shaft, in which a U-shaped fork bracket is secured to the frame side face of a pushbutton-operated tuner, of the right and left arms of said U-shaped fork bracket, to the one on the frame side being formed a V-shaped bearing... | 02/28/1984 |
| 4300238 | Control assembly for electronic tuning receivers A digital oscillator is provided which has digital oscillation outputs corresponding to the sweep speed of the local oscillation frequency of a local oscillator included in an electronic tuning radio receiver. An oscillation frequency controlling element ... | 11/10/1981 |
| 4275606 | Pushbutton tuner A pushbutton tuner wherein a core slide for causing cores to move in-and-out of coils, respectively, has a rack formed at one end thereof and a fine tuning operating mechanism mounted on an auxiliary mechanism baseplate has a pinion meshable with the rack... | 06/30/1981 |
| 4236423 | Operation mechanism for tape recorder An operation mechanism for a tape recorder comprises a recording operation member, a reproduction operation member provided near the recording operation member, a stop operation member for releasing the operational state of these operation members, and an... | 12/02/1980 |
| 4187729 | Pushbutton tuner A pushbutton tuner with its reduced size includes linkage means operatively connected a tuning slider laterally positionable in accordance with the setting of the tuner. A link engaging pin provided on a pushbutton operative member engages with the linkag... | 02/12/1980 |
| 4144511 | Push-button mechanisms and equipment including them A push-button mechanism for tuning a radio receiver includes push-buttons that are actuable to rotate a turrent tuner to different extents for station selection. The side of each push-button contacts one end of an individual lever to pivot it through a pr... | 03/13/1979 |
| 4125028 | Rotatable link coupling mechanism for radio tuning shafts A rotatable link coupling mechanism with a first disc attached to one end of a radio tuner shaft, a second intermediate disc, and a third disc attached to the end of a moveably positioned drive shaft. The first and second discs and the second and third di... | 11/14/1978 |
| 4116078 | Lock release mechanism for push button levers in a tape recorder A lock releasing mechanism for push button levers such as used in a tape recorder. The mechanism includes an electromechanical releasing system and a distinct mechanical releasing system commonly operable by a manual operator. The mechanical system functi... | 09/26/1978 |
| 4079631 | 5-10 Pushbutton tuner A dual band pushbutton tuner comprises a frame, a plurality of actuating members each having a pushbutton, the actuating members being capable of sliding with respect to the frame, a pair of follow-up members arranged on both sides of each actuating membe... | 03/21/1978 |
| 4041784 | Actuator for push button tuner An actuator for a pushbutton tuner comprises a pushbutton slide, a pair of slideable tuning slides, interconnecting means for selectively connecting the pushbutton slide with either one of the pair of tuning slides, and shift means for controlling the con... | 08/16/1977 |
| 4020704 | Pushbutton tuner A pushbutton tuner for a radio receiver such as an auto radio has a pair of turn plates rotatable about axes and first and second link members extending between and pivotally connected to said first and second turn plates to form a link work. An auxiliary... | 05/03/1977 |
| 4010652 | Actuator for pushbutton tuner An interconnecting member which operatively connects a pushbutton slide with either one of a pair of tuning slides comprises a flat body portion which has its one end pivotally connected with the pushbutton slide. At its other end, the body portion is pro... | 03/08/1977 |
| 4003266 | Actuator for pushbutton tuner An interconnecting member which operatively connects a pushbutton slide with either one of a pair of tuning slides selectively is carried by shift means which moves it from one of its operational positions to the other. When a selected tuning slide recipr... | 01/18/1977 |
| 3974704 | Tuner mechanism Accuracy and reproducibility of tuning with a low-cost mechanism in minimum space is achieved by a pair of flat, tapered-notch coupling members each being spring biased into firm engagement with the driving member at the opposite extremities thereof and w... | 08/17/1976 |
| 3952603 | Pushbutton system, in particular for a pushbutton operated car radio receiver A pushbutton system for a car radio receiver, comprising pairs of selector drive rods alternately engaged by a common button. A pawl drives a sequencing catch. The pivot point of the pawl is shifted when re-setting a drive rod so that sequencing is inhibi... | 04/27/1976 |
| 3943779 | Pre-set positioning device A preset positioning device which is suitable for push-button tuners, and in particular for car radios. The device has a frame with a locator and a reference both mounted on the frame and both movable relative to the frame through respective ranges of cor... | 03/16/1976 |
