Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7225753 | Bell device A bell device includes a housing having two housing members secured together, and one or more peripherals rib extended into an opening of the housing, a securing device includes a shank engaged in the opening of the housing, and includes a peripheral flange extended... | 06/05/2007 |
| 7220904 | Bell and clapper for bells A clapper for a bell is hollow on the inside for receiving objects, such as a personal dedication. The clapper may also be provided with a coating for damping the volume of the bell strike, or at least change the sound. ... | 05/22/2007 |
| 7182039 | Striker mechanism for bell unit A striker mechanism 21 which clangs a bell 21 is made up of a support member 31 which projects radially outward of the bell, a striker 41 pivotably mounted on the support member so as to be rockable in a direction toward and away from the... | 02/27/2007 |
| 6739282 | Bell assembly having actuatable clapper A bell device includes a securing device attached to a bell member, a seat rotatably secured to the securing device with a shaft and rotatable relative to the securing device about the shaft, and a resilient member having one end secured to the seat and a clapper se... | 05/25/2004 |
| 6239692 | Sounder A multi-tone sounder system including the sounder and a method of controlling the sounder in which at least a pair of chime bars (3, 5), bells or gongs are spaced apart and arranged to be struck by a solenoid operated striker (26) positioned between the c... | 05/29/2001 |
| 6125785 | Bell assembly A bell assembly in which the bell is mounted on a plastic base by means of a plastic collar snap-fitted into aligned holes in the bell and the bell mounting element of the base. The collar is formed with an axial bore for receiving a plastic manually depr... | 10/03/2000 |
| 5975008 | Rotatable striking elements for a handbell A clapper assembly includes circular strikers which can be individually rotated so that a new portion of the surface of the striker is presented in the direction of the clapper stroke. A pair of opposing plates located at the end of the clapper bar retain... | 11/02/1999 |
| 5659286 | Doorbell base A doorbell base is made integrally and is provided with two resonators and a hollow housing located between said two resonators. Each of two resonators is provided respectively at two opposite side walls thereof with a locating projection for locating a s... | 08/19/1997 |
| 5550319 | Decorative display and ornament therefor A display, such as a Christmas display, comprises a plurality of ornaments (14), each including a striker (18), a pair of bells (26, 27) disposed in spaced relation from the striker (18) and a means (46) responsive to an electrical signal from a control u... | 08/27/1996 |
| 5315909 | Musical wind chime A musical wind chime especially to one which generates music according to the appearance of the wind chime includes a wind chime body and a sound control circuit. A power source is used to supply the required electrical power to the sound control circuit.... | 05/31/1994 |
| 4977850 | Signal apparatus A signal apparatus comprising a post-mountable arm adapted at one end to be mounted on a vertical stand post and having provided at the other end thereof a bell adapted to be struck by a counter-weight mounted on one end of a balance beam when blood reach... | 12/18/1990 |
| 4941424 | Door alarm A sonic alarm device is provided for signalling the opening of a door which is hingedly mounted adjacent the edge on a door frame for swinging movement about an upright hinge axis into and out of a closed position. The door alarm is mounted in the interio... | 07/17/1990 |
| 4677892 | Electrical actuator for percussion instruments An improved striker mechanism for percussion instruments such as chimes, bells, drums, and the like, is disclosed. A clapper is mounted on an armature for motion between a rest position and an impact position. A solenoid-permanent magnet set is provided t... | 07/07/1987 |
| 4566400 | Handbell An improved bell is disclosed which features a clapper continuously adjustable for hardness of strike. The clapper comprises a hard inner member and a resilient outer member. The periphery of the clapper is circular but the hard inner member is not circul... | 01/28/1986 |
| 4135474 | Bell actuating mechanism In the combination of a spring driven motor having a winding shaft which rotates less than one complete revolution during the unwinding of the motor from a fully wound condition, escapement means for permitting the motor to unwind at a controlled rate and... | 01/23/1979 |
