Fastener tool having auxiliary fuel cell metering valve stem...

Details Fastener tool having auxiliary fuel cell metering valve stem... Fastener tool having auxiliary fuel cell metering valve stem...

B - Operations, Transporting

25

B

B25B 31/00 (2006.01) B25C 1/08 (2006.01)

Patent

CA 2413373

An auxiliary elastomeric sealing adaptor is dis- closed which effectively provides a high degree of sealing, and prevents fuel leakage, between the metering valve stem and the tool stem components of a fuel-cell powered fasten- er-driving tool despite bending; tilting, or pivotal move- ments of the metering valve stem attendant a fastener-firing operation. In addition, the incorporation of the elastomeric adaptor between the stem components reduces the need for high tolerance manufacturing techniques and also enhances the service lives of the stem components. The sealing adapt- or is mounted upon the free or distal end portion of the metering valve stem and is seated within a counterbored re- gion of the fastener-driving tool stem.

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