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Assignee: Polygon Company


Location: Walkerton, IN
No. of patents: 11

NumberTitleIssue Date
7980762Hybrid bearing cylinder
A hybrid bearing cylinder having a composite sleeve and a metallic jacket positioned around the composite sleeve and secured thereto. The hybrid bearing cylinder is adapted to be secured to metallic cylinder end caps by threading, welding, swaging or other metal att...
07/19/2011
7931403Position sensing composite cylinder
A fluid power composite cylinder that includes conductive and resistive material as part of the composite cylinder. The conductive and resistive material to provide a sensor feature that is used to assist position sensing electronic devices in sensing the position o...
04/26/2011
7412920End cap assembly
A fluid activated cylinder assembly including an end cap having an annular protrusion and a hollow cylinder having an end zone. The cylinder applies compressive force to the annular protrusion in the end zone. The end zone having no accommodating cavity and no accom...
08/19/2008
7306078Composite brake cylinder
A composite material and framework structure adapted to be utilized as a piston and cylinder apparatus. A cylindrical tube composed of a composite material is compressed between two end caps at the axial ends of the cylindrical composite tube. Beam elements extend b...
12/11/2007
7240607Removable end plug
A pressure assembly including a cylinder, an end plug and a split ring band. The cylinder has an end, an inner surface and an outer surface. The end plug is inserted into the end of the cylinder, the end plug having an outer surface that is in partial contact with t...
07/10/2007
7100492End cap assembly
A fluid activated cylinder assembly including an end cap having an annular protrusion and a hollow cylinder having an end zone. The cylinder applies compressive force to the annular protrusion in the end zone. The end zone having no accommodating cavity and no accom...
09/05/2006
6860638Spherical bearing
A spherical bearing including a generally annular first portion having at least a partial substantially spherical outer surface and a generally annular second portion having at least a partial substantially concave surface, the outer surface at least partially engag...
03/01/2005
5669284Fluid cylinder end cap assembly
An end cap assembly for a fluid cylinder includes a cylindrical casing having a longitudinal axis and an open end, and an end cap closing the open end of the casing. The end cap has a first connecting device for connecting with the casing, and the casing ...
09/23/1997
5651303Fluid cylinder end cap assembly
An end cap assembly for a fluid cylinder includes a cylindrical casing having a longitudinal axis and an open end, and an end cap closing the open end of the casing. The end cap has a first connecting device for connecting with the casing, and the casing ...
07/29/1997
5465647Fluid cylinder end cap assembly
An end cap assembly for a fluid cylinder is disclosed. The assembly includes a pair of end caps comprising closure units closing the open ends of a cylindrical casing. Each closure unit has an axially extending annular skirt having an outer cylindrical su...
11/14/1995
5129184Magnetic sealing gasket
A magnetic sealing device for a refrigeration appliance is disclosed that includes first and second pultruded gaskets, one of the gaskets being connected to the cabinet and the other of the gaskets being connected to the door. One of the gaskets has an ex...
07/14/1992
 
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