U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"Man will not fly for 50 years."

Wilbur Wright ; 1901

Newsletter  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.

 

Class 340/390.2 - Having spring


Subclass of Class 340 - Communications: electrical
Definition: Subject matter wherein the driving mechanism comprises a
No. of patents: 1
Last issue date: 11/24/1998


NumberTitleIssue Date
5841343Buzzer with rotary volume adjustment
A electromechanical buzzer provides a rotational volume control having a flange extending over the armature of the buzzer with a downwardly extending wedge surface reducing the vibrational range of the armature. The wedge surface is oversized so that when...
11/24/1998
 
Sign InRegister
Username  
Password   
forgot password?