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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 |
| 6774888 | Personal digital assistant including a keyboard which also acts as a cover A personal digital assistant (PDA) which includes a body portion and a keyboard adapted to be coupled to the body portion. The keyboard is a standard keyboard size when in use. The keyboard is also foldable to act as a cover for the body portion. In a preferred embo... | 08/10/2004 |
| 6563063 | Slide bar interlocking device An interlocking device for preventing the simultaneous throwing of a pair of switches. An elongate locking bar is provided with two laterally spaced apart switch actuator-receiving recesses formed therein. The elongate locking bar has a first position whe... | 05/13/2003 |
| 6340966 | Clamping device for third-axis input device of mouse An improved clamping device for third-axis input device of mouse, comprises a hollow roller stage and a roller with a plurality positioning holes and pivotally arranged on the roller stage. The roller exposes out of the cover of the mouse. The roller stag... | 01/22/2002 |
| 5777282 | Push-button switch Contact holders accommodated in defined regions are elastically returned to initial positions on the side of a wall. At the initial positions, stoppers are formed integral with a wall which defines the regions, in such a manner that the stoppers are in pa... | 07/07/1998 |
| 5457443 | Multifunctional combination switch A combination switch for performing various functions comprises a fixed substrate having an output contact assembly which has a common output contact and other output contacts which are electrically insulated from the common output contact. The switch als... | 10/10/1995 |
| 5233140 | Multiple switch assembly with interlock A switch unit has at least a pair of switches and a pair of push buttons arranged corresponding to the pair of switches. A lock member is arranged between the pair of the push buttons to engagingly lock the movement of one of the push buttons at the time ... | 08/03/1993 |
| 5124515 | Switching mechanism A switching mechanism is provided including a control member and a switching element which is coupled to the control member and by means of a coupling element can be moved between a first and a second position. The switching mechanism includes two couplin... | 06/23/1992 |
| 5003134 | Press type electric switch A switch includes two casings engaged together. Four shafts are extendible through the upper casing. Four pairs of ribs are formed in the lower casing. A contact arm is received in the lower casing. Three conductors are provided in the lower casing. A ret... | 03/26/1991 |
| 4996394 | Push button vacuum-electric air control device for automotive vehicles Seven or some other number of individually operable push buttons are provided to carry out control functions of an automotive heating, ventilating and air conditioning system. The push buttoms are movable between extended and depressed positions and are b... | 02/26/1991 |
| 4835348 | Electrical switch device An electrical switch device has a casing with a viewing aperture therein, and switch actuating means is pivotally movable in the casing between an at-rest position and a switch actuating position. A toggle spring is movable with the switch actuating means... | 05/30/1989 |
| 4748306 | Control button unit having block elements with coupled movable members A control button unit with a block element design includes an actuator (1) having a manually operable plunger (6), which is preferably cylindrical and hollow for the purpose of interior illumination, and a coupling piece (9) having several plug-in locatio... | 05/31/1988 |
| 4743714 | Multiple pushbutton switch and interlock assembly A multiple pushbutton switch comprising a lower insulative housing; a cover member mounted over the housing to form an accommodating space; a plurality of equally spaced selecting contact plates retained by the housing; a plurality of equally spaced J-sha... | 05/10/1988 |
| 4701580 | Simultaneous inter-row locking inhibiting mechanism for a multi-row interlocking switch device A mechanism for inhibiting simultaneous locking of switches in a plurality of rows in a multi-row switch device has a member for inhibiting simultaneous locking of switches in two rows. The member has a plurality of receiving portions projectingly formed ... | 10/20/1987 |
| 4679728 | Electrical control unit An electrical control unit has specific application to central heating systems in which a plurality of electrical connections are to be made to the unit. The unit includes a backplate to which electrical connections may be made at a plurality of positions... | 07/14/1987 |
| 4539860 | Pushbutton interlock A unique interlock mechanism for two pushbuttons or other linearly operated devices, requiring no mechanical linkages or complex assemblies. The interlock mechanism essentially comprises an interlock member having first and second restraining portions dis... | 09/10/1985 |
| 4499342 | Multi-position electric switch A switch suitable for use in the remote control of electrically driven rearview mirrors of a motor vehicle. The switch is adapted to close and open a plurality of switch elements by means of a single or divided operation member. The switch occupies only a... | 02/12/1985 |
| 4447686 | Pushbutton switch or pushbutton-actuated slide switch In a pushbutton switch or pushbutton-actuated slide switch having a detent mechanism designed to have the shape of a heart cam, an individual latching and a mutual unlatching is made possible in that, according to the invention, the heart cam is provided ... | 05/08/1984 |
| 4362910 | Electrical switch An electrical switch with low profile and small button motion has a button close to a pivot and includes a ring like structure with bearing areas to open and close contacts. The actuating button is situated in an aperture and covered with a flexible membr... | 12/07/1982 |
| 4297541 | Ganged push button switch having means preventing simultaneous actuation of two push buttons A ganged push button switch comprises at least two modular push button switches each of which includes a push button formed with a cam surface. A plate member is arranged in a manner so as to be laterally movable between the two switches and has oblique e... | 10/27/1981 |
| 4210787 | Keyboard construction A keyboard in which pressing of a key displaces balls in a row and in a column of ball filled channels in a flat member, is further provided with a printed circuit board on which are mounted contact springs and the circuit pattern on the PC-board connects... | 07/01/1980 |
| 4205557 | Interlocking apparatus An interlocking apparatus comprising a plurality of spaced elements each of which is controllably movable to an extended position upon actuation, and control means having a plurality of positions which are alterable for the extension of only respectively ... | 06/03/1980 |
| 4177364 | Multiple pushbutton switch A multiple pushbutton switch is disclosed in which each pushbutton actuator has a rotatable cam mounted thereon that interacts with one or more lockout members positioned alongside of the actuator in the same plane as the cam. The interaction between the ... | 12/04/1979 |
| 4167657 | Keyboard with mechanical encoding A keyboard has column channels and row channels filled with displacement balls and having trough-like, semicircular cross-sections; this bottom contour of the channels is continued right into the intersection so that balls when displaced by key depressing... | 09/11/1979 |
| 4140883 | Keyboard with selective key entry block Particular keys are provided with locking arms that may or may not enter a duct filled with balls and being displaceable in the duct only if a locking element is not inserted. That element will be inserted when keys having said locking arms must not be de... | 02/20/1979 |
| 4018100 | Selection console and locking mechanism for vending machine The selection console of the present invention affords a plurality of finger-actuated push buttons which move a short distance to actuate the item-selecting mechanism of a vending machine. The console utilizes a single solenoid to unlock the selector mech... | 04/19/1977 |
| 3952175 | Pushbutton switch mechanism having block out members with common mounting and discrete latch bar A pushbutton switch mechanism includes a two-piece housing, a plurality of terminals positioned in the housing, a plurality of contact arms and a pivotally movable latch member within the housing. One of the housing sections has integrally molded pushbutt... | 04/20/1976 |
| 3943307 | Plural interlocking slider cams allowing single actuator and multiple switch operation An electrical switch apparatus has a pair of first switches and a second switch each with a spring-loaded part for actuating its contacts. The switches are arranged in a casing in which two slides are movable against springloading in convergent paths. Eac... | 03/09/1976 |
