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.

 

Assignee: Southern Pacific Transportation Company


Location: SanFrancisco, CA
No. of patents: 14

NumberTitleIssue Date
5032044Light weight stowable front wheel seats for hauling large semistacked highway trucks in railroad cars of extraordinary height
A railroad car having a flat bed at the lowest possible level and a roof and side panels supported by stanchions at an extraordinary height is provided with cantilevered wheel seats for support of the front wheels of semistacked trucks with each truck bac...
07/16/1991
4880190Locomotive curve tracking system
A system for recording railroad track curvature utilizes linear motion transducers between the tracks of a railroad vehicle and the sides of the vehicle, or between adjacent vehicles, to continually measure the degree of curvature together with speed, sto...
11/14/1989
4446734Motor driven exciter
A hammer-type device is driven by a cam and spring arrangement in reciprocating motion to strike a moving train wheel for producing vibrations therein which are used to detect defects in the wheel....
05/08/1984
4429207Method for welding railroad rails and means therefor
A method for electroslag welding of railroad rails under field conditions employs a special mold bottom member and a special guide tube structure. The mold bottom member includes a metallic insert which is supported by heat-insulating means, e.g. ceramic ...
01/31/1984
4293795Solid state flasher relay
A solid state flasher relay of the type for switching an AC or a DC voltage across first and second loads interconnected at a common junction. More specifically, a solid state flasher relay is disclosed wherein shunting transistors are selectively control...
10/06/1981
4237794Automobile securement mechanism to freight car
Automobiles are lifted from alongside a fully enclosed multi-level deck rail car and loaded onto the decks through a side opening of the rail car. The automobiles are pushed forwardly from the rear towards an end of the rail car. Detachable securement mea...
12/09/1980
4154348Side-loading transport of automobiles by rail
Automobiles are lifted from alongside a fully enclosed multi-level deck rail car and loaded onto the decks through a side opening of the rail car. The automobiles are pushed forwardly from the rear towards an end of the rail car. Detachable securement mea...
05/15/1979
4144820Rail car closure
A door designed for use in conjunction with a gate that covers the end of an enclosed rail car whose sides are sloped at the top, to cover the portion of the car end which lies between the top of the gate and the roof of the car. The top door is supported...
03/20/1979
4116135Sliding screen closure for rail cars
A railroad car with multiple decks for carrying automobiles, including gates at the end of the rail car which can be easily moved between their open and closed positions. Each gate includes a plurality of vertical frame members and screen sections connect...
09/26/1978
4073394Lift truck with attachment for carrying automobiles
A lift truck with two sets of elongated parallel tines. One set straddles the front wheels of an automobile and the other set straddles the rear wheels. The tines of each set are brought together to engage and cradle the front and rear of the bottom of ea...
02/14/1978
4067469Method of loading automobiles through the side opening of a rail car
Automobiles are lifted from alongside a fully enclosed multi-level deck rail car and loaded onto the decks through a side opening of the rail car. The automobiles are pushed forwardly from the rear towards an end of the rail car. Detachable securement mea...
01/10/1978
4066299Apparatus for locating a malfunctioning brake control valve on train
Each car on a freight train is equipped with what is called a brake control valve. This valve is in the automatic air brake system and causes the air brake on the individual car to be applied when the pressure in the main brake pipe which runs throughout ...
01/03/1978
4037526Train tunnel ventilation method and apparatus
A train tunnel is ventilated by closing an exit end of the tunnel as a train approaches the entrance end, so that during passage through the tunnel the train acts as a loose piston moving through a long closed cylinder, to cause a rapid airflow rearwardly...
07/26/1977
3993270Slippery wheel detector
This invention relates to a method and apparatus for determining whether or not a freight car in a classification yard can be adequately retarded, prior to it being moved to make up a freight train, by measuring whether the wheels of the freight car are t...
11/23/1976
 
Sign InRegister
Username  
Password   
forgot password?