Working cylinder for power tool with piston lubricating system

A fastener driving tool with a working cylinder and a piston, the piston outer surface having a lubricant-saturated foam material that stores and dispenses lubricant into the piston-cylinder wall interface, thereby increasing the performance and lifespan of the tool. Another embodiment discloses a t...

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Bibliographische Detailangaben
Hauptverfasser:	McCardle, Thomas A, Kabbes, Anthony D, Bradley, David D
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CYLINDERS DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR ENGINEERING ELEMENTS AND UNITS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HAND TOOLS HAND-HELD NAILING OR STAPLING TOOLS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MANIPULATORS MANUALLY OPERATED PORTABLE STAPLING TOOLS MECHANICAL ENGINEERING PERFORMING OPERATIONS PISTONS PORTABLE POWER-DRIVEN TOOLS SEALINGS SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	A fastener driving tool with a working cylinder and a piston, the piston outer surface having a lubricant-saturated foam material that stores and dispenses lubricant into the piston-cylinder wall interface, thereby increasing the performance and lifespan of the tool. Another embodiment discloses a two-part piston in which the bottom portion is made of metal and absorbs the main mechanical loading forces of the piston drive and return strokes, and the top portion is made of a non-metallic material that has surfaces that act as sliding bearings against the inner wall of the cylinder.