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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7950846 | Coupled resonators for a timepiece The resonator (1) for a timepiece results from coupling a first, low frequency resonator (2) with a second, higher frequency resonator (3). The first resonator (2) has a first balance (4) associated with a first balance spring (... | 05/31/2011 |
| 7682068 | Temperature-compensated balance wheel/hairspring oscillator The invention relates to mechanical watch oscillators comprising an assembly consisting of a spiral and a temperature compensated balance. The spiral is embodied in a quartz substrate whose section is selected in such a way that the drifts of the spiral and of the b... | 03/23/2010 |
| 7503688 | Thermoregulated sprung balance resonator The balance-spring is structured by photolithography and etching in a strip pre-cut from a quartz monocrystal such that the height h of the coils form, with the crystallographic axis z, an angle θ for adapting the thermal behaviour of the balance-spring to that of ... | 03/17/2009 |
| 7396154 | Regulating element for wristwatch and mechanical movement comprising one such regulating element Regulating element for wristwatch comprising: a balance, a magnetic return member for returning the balance to at least one stable equilibrium position, and an escapement for maintaining the oscillation of the balance around the equilibrium position. ... | 07/08/2008 |
| 7287900 | Mechanical timepiece fitted with a device for adjusting the shake of a rotating part or wheel set The timepiece includes means for adjusting the shake of a rotating part or wheel set, in particular a balance one bearing of which is arranged in a bar (4). This bar comprises a base (18) associated with a adjusting screw (34) one end (36... | 10/30/2007 |
| 7188995 | Tourbillon The invention relates to a tourbillon (1) comprising a main bearing (22). A first bearing (18) of the balance axle (19) rotates with the platform (2) of the tourbillon (1), and a second bearing (26) of the balance axl... | 03/13/2007 |
| 7059764 | Device for the fine adjustment of a balance wheel/hairspring In order particularly to put a watch into beat and adjust the isochronism, in addition to the poising screws (2a, 2b) of the balance (1) and the fine adjusting screw (7) pressing on the index tail 20a to alter ... | 06/13/2006 |
| 6705601 | Self-compensating spiral spring for a mechanical balance-spiral spring oscillator This self-compensating spiral spring for a mechanical balance-spiral spring oscillator for a watch or clock movement or other precision instrument, made of an Nb—Hf paramagnetic alloy possessing a thermal coefficient of Young's modulus (TCE), such that it enables ... | 03/16/2004 |
| 6612734 | Mechanical timepiece with stud adjustment mechanism A mechanical timepiece movement has a mainspring serving as a power source, a wheel train rotated by a rotational force produced by the mainspring for driving a display, and an escapement and speed control apparatus for controlling rotation of the wheel t... | 09/02/2003 |
| 6554468 | Mechanical timepiece with timed annular balance rotating angle control mechanism A mechanical time piece has a mainspring for generating a rotational force and a front train wheel for undergoing rotation in accordance with a rotational force generated by the mainspring. An escapement and speed control apparatus controls rotation of th... | 04/29/2003 |
| 6520674 | Mechanical timepiece with posture detector A mechanical timepiece has a mainspring for generating a rotational force and a front train wheel for undergoing rotation in accordance with a rotational force generated by the mainspring. An escapement/speed-control device for controlling rotation of the... | 02/18/2003 |
| 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 |
| 5881026 | Self-compensating balance spring for a mechanical oscillator of a balance-spring/balance assembly of a watch movement and process for manufacturing this balance-spring A self-compensating spring for a balance-spring for a balance-spring/balance assembly of a mechanical oscillator of a horological movement or of any other precision instrument, made of a paramagnetic Nb--Zr alloy containing between 5% and 25% by weight of... | 03/09/1999 |
| 4157008 | Mechanical watch movement A balance spring support which is blanked out or stamped to a shape such as to embrace at least two faces of the outer end of the balance spring. A bond is used for securing said outer end of the balance spring to at least one of said faces. The support i... | 06/05/1979 |
| 4122662 | Wrist watch identification This invention relates to the identification of wrist watches of the type which are mass produced. It comprises stamping a matrix of identifying indicia in the bottom of a concavity underneath but visible through the felloe of the balance.... | 10/31/1978 |
| 4041693 | Escapement for a timepiece This invention refers to a high efficiency escapement wherein the pallets embrace more than one fifth of the teeth of the pallets wheel, and wherein the entry-pallet embraces relative to the line joining the center of the escape wheel to the pallet staff ... | 08/16/1977 |
| 4007582 | Method and apparatus for synchronizing an electrodynamic clockwork drive A circuit for synchronizing an electrodynamic clockwork drive including two inductors and two permanent magnet assemblies which are moved relative to a clockwork drive by a mechanical oscillation system having the inherent frequency f and the first induct... | 02/15/1977 |
| 4002021 | Rotary escapement for timepiece A timepiece escapement has a balance carrying an eccentric pallet pin periodically and regularly oscillating forward and backward about a balance axis with the pin engaging on each forward oscillation between the teeth of an adjacent escape wheel so as an... | 01/11/1977 |
| 3991556 | Clock or watch movement A clock or watch movement has a spindle assembly which includes an escape wheel, a pinion and a common spindle. The escape wheel is driven by a balance wheel and a driven wheel of the movement meshes with the pinion. The ends of the spindle are journalled... | 11/16/1976 |
| 3949547 | Escapement or counting mechanism for a timepiece having a balance-wheel A timepiece mechanism including an escapement or counting wheel. A balance wheel with two abutting members cooperates with the teeth of the escapement or counting wheel. The action of one abutting member causes the escapement or counting wheel to leave a ... | 04/13/1976 |
| 3942317 | Component parts for watch movements Component parts for watch movements which consist of a plastic body shaped by molding with heavy metal particles dispersed throughout to produce a component part having a specific gravity of more than 7.... | 03/09/1976 |
