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Pneumatic tool with as-cast air signal passage

Inactive Publication Date: 2007-08-02
STANLEY FASTENING SYST LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008] Therefore, it is desirable to overcome these and other limitations thu

Problems solved by technology

The machining of the air signal passage in the prior art devices is expensive and time consuming.
In addition, the machining step introduces surface irregularities thus potentially creating leaks in the housing.

Method used

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  • Pneumatic tool with as-cast air signal passage
  • Pneumatic tool with as-cast air signal passage
  • Pneumatic tool with as-cast air signal passage

Examples

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Embodiment Construction

[0018] Referring now to the drawings, more particularly referring to FIG. 1, there is shown therein a fastener driving device, generally indicated at 10, which embodies the principles of the present invention. The operation of device 10 is explained more fully in U.S. Application No. 60 / 369,884, which is hereby incorporated by reference. The tool comprises housing 12 having, among other things, a cylinder containing body portion 14, a handle portion 16 and a cap portion 18. The size and shape of these components can vary considerably depending on the type of fastener and application, but all have in common an internal air chamber 20 for containing compressed air, for example, from an external source.

[0019] The compressed air chamber 20 is pressurized from an air supply line through an inlet connection attached to the handle (not shown). In this particular embodiment, the cap 18 may be attached to the body portion 14 with screws (not shown). Part of the volume in cap 18 is used to e...

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Abstract

A fastener driving device includes a housing containing a chamber for storing compressed air a cylinder structure disposed within the housing, a piston movably disposed within the cylinder, a driver connected to the piston, a main valve cooperable with the cylinder structure and movable between an open position and a closed position. The main valve in its open position allows air to move the piston through a drive stroke. The fastener driving device also includes a trigger valve operable between first and second positions. The trigger valve in its first position communicates air pressure from the chamber to the main valve through a signal passageway so as to retain the main valve in a closed position. The trigger valve in its second position allows the air to be exhausted to atmosphere through the signal passageway to permit the main valve to open. The cylinder and the signal passageway comprise an integrally molded structure.

Description

[0001] This application is a divisional application of U.S. patent application Ser. No. 10 / 406,579, filed Apr. 4, 2003, and claims priority to U.S. Provisional Application Nos. 60 / 369,802, 60 / 369,882, and 60 / 369,884, all filed on Apr. 5, 2002. The entire contents of all of these applications are incorporated herein by reference.BACKGROUND [0002] 1. Field of Invention [0003] This invention relates to fastener driving devices and, more particularly, to fastener driving devices of the portable type. [0004] 2. Discussion of Related Art [0005] Fastener driving tools for driving fasteners such as nails, staples or the like are commonly used in industry and commerce. The fasteners are generally supplied from a collated strip or stick of fasteners disposed in a magazine coupled to a nose-piece portion of the fastener driving tool. The fastener driving tool also comprises a housing to store compressed air provided from an external source, and a cylinder is disposed within the housing. A pist...

Claims

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Application Information

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IPC IPC(8): B21J15/28
CPCB25C1/041
Inventor BURKE, BRIAN C.CANLAS, PRUDENCIO S. JR.SIMONELLI, DAVID J.
Owner STANLEY FASTENING SYST LP
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