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Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 7316504 | Mechanically regulated timepiece The invention concerns a timepiece with mainspring of the so-called fly tourbillon type, the tourbillon having a balance bridge (2) forming a cage with a collet (1) and a single protruding ball bearing (5) supporting said so-called fly tourbillo... | 01/08/2008 |
| 7213966 | Collet without deformation of the fixation radius of the balance-spring and manufacturing method of the same The collet is formed by a metal band (10) whose inner contour (11) delimits the recesses (11a, 11b, 11c) for driving the collet onto a balance staff (2) and whose outer contour (12) includes a fun... | 05/08/2007 |
| 6914855 | Circuit for driving motor coils in stepping motors A circuit for selectively driving n motor coils associated with a plurality of stepping motors, wherein only (n+1) motor coil drivers are needed. A timepiece that utilizes such a circuit is also provided. ... | 07/05/2005 |
| 6400651 | Coil block protection structure and electronic device having coil block protection structure An electronic device has a battery for storing electric power, an electronic circuit driven by electric power from the battery, and a coil block for generating a magnetic field in accordance with a signal from the electric circuit. A protective film is co... | 06/04/2002 |
| 6354731 | Oscillating winding weight for a timepiece with an automatic movement and timepiece fitted with such a winding weight The invention concerns an oscillating winding weight for a timepiece including a heavy portion secured to a connecting element connecting said heavy portion to an arbour fixed to the movement, said weight being intended to be rotatably mounted on said arb... | 03/12/2002 |
| 6329066 | Self-compensating spiral for a spiral balance-wheel in watchwork and process for treating this spiral This self-compensating spiral for a mechanical spiral balance-wheel oscillator in watchwork or other precision instrument, made of a paramagnetic alloy, contains at least one of the elements Nb, V, Ta, Ti, zr, Hf and is covered with a substantially unifor... | 12/11/2001 |
| 4910721 | Electronic watch A timepiece includes a hairspring for storing the energy provided by a step motor driving circuit and a rotor immersed in a viscous fluid controls the energy released by the hairspring to provide a constant driving force for turning the display hands of t... | 03/20/1990 |
| 4721925 | Micromechanical electronic oscillator A microminiature oscillator that uses the movement of a mechanical structure placed on an etched silicon chip to control the frequency of a pulse used as a time base in electronic applications.... | 01/26/1988 |
| 4421207 | Combination anti-friction bearing and force-generating mechanism A combination linear bearing and force-generating mechanism comprising an outer frame attached to a first set of cams and an inner shaft attached to a second set of cams. Flexible pendulums connect and wrap around the first and second set of cams, the fle... | 12/20/1983 |
| 4266291 | Electromagnetic swing device An electrical swing mechanism having a drive device with a rotor and a stator. The drive device carries out self-returning reciprocation with a rotation angle of the rotor. An intermittent drive transmission device transmits the rotation of the drive devi... | 05/05/1981 |
| 4215532 | Mechanical watch movement A mechanical watch movement of the type wherein a balance-cock supports a balance arranged to pivot in bearings about a fixed axis, and a balance-spring is fixed at its inner end to the balance and at its outer end to a bent arm of a thin, blanked plate c... | 08/05/1980 |
| 4143509 | Electronic time-keeping system with electro-mechanically-driven analog display and electrical integral hour reset feature A time-keeping system of the type having an electromechanically driven, analog-type time display, has a purely electrical integral hour reset feature. The system comprises an analog time display including hour and minute hands driven through a mechanical ... | 03/13/1979 |
| 4068462 | Frequency adjustment circuit A circuit for adjusting the frequency of operation of an electronic time keeping device, which device includes a source of clock pulses. The circuit of this invention is preferably located between the source of clock pulses and the time keeping device cou... | 01/17/1978 |
| 4057885 | Method of producing an oscillating weight for automatic timepieces A method of producing an oscillating weight for an automatic wristwatch. The oscillating weightcomprises a heavy-metal segment and a metallic center portion having a flanged rim. For attaching the center portion to the heavy-metal segment, an arcuate groo... | 11/15/1977 |
| 4028877 | Fluid operated clock This fluid operated clock comprises a support stand which includes a shaft providing a pivot mounting for an oscillating housing, and which carries a reservoir above the housing for supplying fluid to housing inlet openings. The housing is partitioned to ... | 06/14/1977 |
| 3978652 | Formed contact spring for electro-mechanical watches A contact spring for making repetitive electrical contact with a contact pin on an oscillating balance wheel in a electro-mechanical watch. The contact spring is flat for maximum flexibility and has an end crimped to provide opposite identical rigid conta... | 09/07/1976 |
| 3961213 | Motion transformer A rotary motion transformer particularly adapted to provide continuous rotary motion to a driven member in response to an intermittently rotated driving member is provided. The driven member and the driving member are oppositely poled magnetic permeable m... | 06/01/1976 |
