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

Icon_funbox Bizarre Patents

Patent No. 6205950

Pet Toilet-Like Water Disk and Food Storage

One pet-friendly inventor patented "a device for watering pets, e.g., a dog or cat." The device, he helpfully noted, "has the general shape of a toilet."

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 246/257 - FLUID-MOTOR ACTUATION


Subclass of Class 246 - Railway switches and signals
Definition: Actuating mechanism operated by fluid-pressure.
No. of patents: 17
Last issue date: 11/27/2007


NumberTitleIssue Date
7300023Machine for railway switching
An in-tie machine for moving the movable elements of a switching device, such as the switch points of a switch point assembly or the moving V-point of a movable point frog, with a sliding device which selectively engages a control rod with either a fixed seat or a m...
11/27/2007
7267304Railroad yard switch machine
A railroad switch machine which is normally operated by an electric motor but which may be manually operated without causing rotation of the power shaft of the electric motor to enable the switch machine to move the switch points without having to overcome the brake...
09/11/2007
7191986Device for mechanically and electrically checking the switching device of a railway switch machine
In a device for checking the operation of devices (4) used to displace movable switch parts (2, 3), in which the movable switch parts (2, 3) are connected with each other by a coupling rod (13), the coupling rod (13) is comprised o...
03/20/2007
7178764Device for operating rail switches
In a device for operating rail switches, in which a plurality of mutually coupled hydraulic operating devices are arranged in an offset manner in the longitudinal direction of the rails, the cylinder-piston units of the hydraulic operating devices are connected to b...
02/20/2007
7168663Point machine for movable frogs
In a switch actuator for movable frogs (1), comprising at least one cylinder piston unit (5) having a defined preset piston stroke, the cylinder piston unit (5) is connected with bearings (6) capable of being displaced in the axial direct...
01/30/2007
6568641Electrically operated railroad switch machine
A switch machine for moving railroad switch points. The switch machine includes a switch stand adapted to be connected to the railroad switch points. The switch stand includes a rotatable hub which is selectively rotatable to throw the switch points. A ro...
05/27/2003
6427950Electrically operated railroad switch machine
A switch machine for moving railroad switch points. The switch machine includes a switch stand adapted to be connected to the railroad switch points. The switch stand includes a rotatable hub which is selectively rotatable to throw the switch points. A ro...
08/06/2002
6402095Device for displacing the moveable parts of rail switches or crossings
In a device for displacing the movable parts of rail switches or crossings, in which a plurality of hydraulic cylinder piston units engaging in an offset manner in the longitudinal direction of the rails are each connected in series, at least one directio...
06/11/2002
6164602Railroad frog assembly with multi-position holdback
A railroad frog assembly is provided with a spring wing rail multi-position holdback subassembly that continuously retains the spring wing rail in each spring wing rail open position when activated by the wheels of a railcar traversing the frog assembly, ...
12/26/2000
6056244Railway switch setting device
A device for setting railway switches includes a plurality of interlinked hydraulic switching devices (6) connected to a separate reversible hydraulic drive unit in a manner offset in the longitudinal direction of the rails, wherein the working volumes of...
05/02/2000
6032906Point drive unit
A point drive unit (10) is disclosed for driving railway points to move via a connecting means of the points located generally centrally between two of the rails (3) of the railway track. The unit comprises a housing (11, 12) adapted to be installed betwe...
03/07/2000
5806810Spring rail frog having switchable magnet for holding wing rail open
A railroad frog assembly is provided with a switched magnet that immediately retains a frog flexible wing rail in its open position in response to a railcar wheel passing through the frog assembly, and that delayably releases the frog flexible wing rail f...
09/15/1998
5772157Operating railroad switches
The railroad power switch operates from the energy stored in a hydraulic accumulator. A pump charges the accumulator and keeps it charged. A power cylinder acts on the moveable rail of a railroad switch through this hydraulic energy. The energy opens the ...
06/30/1998
5687935Device for operating switches
A device for operating switches includes a plurality of interlinked hydraulic switching devices (7) offset in the longitudinal direction of the rails. The first mechanical switching device is connected with a hydraulic cylinder/piston unit acting as a pum...
11/18/1997
5531408Railroad switch stand
A railroad switch stand for actuating a rail switch between open and thrown positions includes, in one embodiment, an upstanding frame supporting a handwheel at approximately chest height for movement between a first position enabling manual rotation of a...
07/02/1996
5417392Hydraulic switch stand with rail pump charging and hydraulic lock
The present invention relates to a hydraulic apparatus for moving railroad switch points from side-to-side. The apparatus has a hydraulic cylinder operatively connected to the switch points to move the switch points from side-to-side in fluid communicatio...
05/23/1995
5375796Railway switch stand having slide block actuator and two independent operating mechanisms
A railway switch stand includes a reciprocating toggle arm which extends from the stand to operate a railway track switch between open and closed positions. The toggle arm has one end connected to a block which is operably mounted on the switch stand base...
12/27/1994
 
Sign InRegister
Username  
Password   
forgot password?