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

Icon_funbox Celebrity Inventors

Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.

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 74/409 - Backlash take-up


Subclass of Class 74 - Machine element or mechanism
Definition: Gear trains provided with means to eliminate backlash in
No. of patents: 405
Last issue date: 08/23/2011


                    11  
NumberTitleIssue Date
3949622System for elimination of consequences of angular clearances in driving gears, especially for machine tool driving gears
A system for the elimination of consequences of angular clearances in driving gears, especially in machine tool driving gears consisting of a dynamic electromagnetically operated brake and of a power unit for exciting said brake. The brake has a rotor cou...
04/13/1976
3949881Swing drive assembly
A load handling device is disclosed having an improved swing drive assembly including a pivotally mounted swing drive pinion biased against a segmented ring gear by an actuator with a guide roller adjacent the pinion engaging a guide flange concentric wit...
04/13/1976
3945258Dial gauge measuring the length in two different units
Dial gauge for measuring length in two different units, characterized in that a first gear and a second gear are mounted to rotate with a pinion which meshes with a spindle rack; a center pinion fixed to a first pointer meshes with said first gear; a pini...
03/23/1976
3938398Torque-transmitting devices
A torque transmitting devices has an input shaft having two axially-spaced sets of external splines. Two internally splined members are threadedly interengaged and respectively engage the spline sets on the shaft. The angular positions of the members are ...
02/17/1976
                    11  
 
Sign InRegister
Username  
Password   
forgot password?