Quotables
"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6915756 | Bells A bell is described having the first at least three or more frequencies substantially in harmonic sequence. A method for designing such a bell is also disclosed. An optimization procedure is described wherein an initial bell shape is modified until the first at leas... | 07/12/2005 |
| 4701749 | Electroacoustic calling device with universal bearing supporting a sound aperture closure member An electroacoustic calling device comprising a piezoelectric transducer contained in a housing with an aperture therein through which sound is emitted. A closure member for controlling the size of the aperture, and hence the volume of emitted sound, is lo... | 10/20/1987 |
| 4646064 | Volume control device for ringer A volume control device suitable for installation on the ringer of a telephone incorporates a tone control lever having a damping element cantilevered therefrom and extending as a wing from a point of pivoting in a direction generally parallel to a frame ... | 02/24/1987 |
| 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 |
| 4484535 | Handbell clapper A clapper body individually mounts two striker turrets on opposite ends. Each striker turret carries individual striker heads and is angularly movable on a turret platform tilted sufficiently in the swing plane so that only the head closest the bell mouth... | 11/27/1984 |
| 4337461 | Volume control mechanism for a bell assembly An indexing mechanism for the volume control of a telephone bell comprises a slot and associated indexing notches which co-operate with a guide pin and an indexing pin respectively. Volume control is effected by forcing the indexing pin over one or more n... | 06/29/1982 |
| 3941082 | Handbell A handbell including an improved clapper assembly that is adjustable with respect to the force required to cause it to swing into strike contact with the bell and is independently adjustable to vary the tonal quality of its strike, whereby a variety of af... | 03/02/1976 |
