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Patent No. 5421089

Fork With Timer

A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.

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Class 213/43 - Fluid


Subclass of Class 213 - Railway draft appliances
Definition: Wherein devices of the class indicated the spring is the
No. of patents: 53
Last issue date: 12/25/2007


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NumberTitleIssue Date
4304338Center-of-car cushioning device with gas return
A cushion assembly having an outer cylinder and a metering cylinder extending between end caps and defining an annular reservoir therebetween with communication being provided by metering orifices distributed along the length of the metering cylinder. A p...
12/08/1981
4261471Fabricated backstop for railway cars
A fabricated backstop for an end-of car cushioning unit in a railway car. The backstop is composed of two plate members or pieces which are welded separately to the inside of a center sill. One backstop piece is a generally U-shaped vertical plate member ...
04/14/1981
4232793Car coupling arrangement for railway passenger cars
A coupler arrangement for rapid transit passenger cars includes a self-centering coupler shank having limited horizontal and vertical swinging movement about a spherical bearing structure. The arrangement includes first and second shock absorbing mechanis...
11/11/1980
4205753Hydraulic buffer for a vehicle
A hydraulic buffer for a vehicle, the buffer including a piston and cylinder arrangement in which the piston is displaced by the pressure of hydraulic fluid, the hydraulic fluid being contained in a chamber defined by the piston and cylinder, the chamber ...
06/03/1980
4113113Valve closure for railway car cushioning device
An end-of-car railway car cushioning unit has a cylinder and a cylindrical piston mounted in the cylinder with the piston rod secured to the piston extending through an opening in the rear end of the cylinder with the piston forming a high pressure fluid ...
09/12/1978
4043545Sealed cushioning unit
A method and apparatus for cushioning motion and dissipating impact energy, preferably in a marine environment, including a piston and cylinder assembly, impedance means associated with the piston and cylinder for impeding translation of the piston within...
08/23/1977
4040523Railway car cushioning device
An end-of-car hydraulic pneumatic cushioning device for connecting to the coupler of a railway car having a piston mounted within a cylinder and a piston rod secured to the piston extending rearwardly from the cylinder. The piston divides the cylinder int...
08/09/1977
4026418Hydraulic cushioning unit with a gas return
This disclosure deals with a hydraulic cushioning unit for a railway car, including a gas return. The unit includes a main reservoir which is precharged with a hydraulic oil and an inert gas. At least one reservoir extension is also provided at the upper ...
05/31/1977
4002244Buffer, particularly suitable for use in railway vehicles
A buffer, particularly suitable for use in railway vehicles, comprising a cylinder including a movable piston and a buffer fluid contained therein, the buffer fluid formed of a very high-viscosity fluid such as silicone oil, and at the same time the cylin...
01/11/1977
3999745Snubber
A snubber having a seal assembly in which a seal having a generally U-shaped cross section encircling a reciprocating rod is engaged with a separate integral wedge element in such a way that radial loads are applied so as to force the outer lip of the sea...
12/28/1976
3976287Shock isolator construction
A shock isolator wherein a piston is movably mounted within a compressible solid chamber formed within a housing, the piston including first passages and second passages, the compressible solid material to be extracted through said first passages during a...
08/24/1976
3944270Hydropneumatic shock absorbing mounted bumper
The bumper of a vehicle is secured to the vehicle chassis by shock absorbers having each a cylinder attached to the vehicle chassis and a hollow piston assembly attached to the bumper. Liquid in the cylinder communicates with liquid in the piston assembly...
03/16/1976
3938851Recoil mechanism
A tractor recoil mechanism for maintaining tension of the track includes a cylinder having a sleeve piston movably disposed therein, associated with a rear frame portion. A rod member, disposed within the sleeve piston to form therewith a closed chamber w...
02/17/1976
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