Patent ID: 7140331
Filing Date: 2006-11-28
Classification: B25C,B25F

Abstract:
1. A suspension system for a motor of a combustion-powered hand tool having a cylinder head and a combustion chamber, comprising: a motor retaining ring defining a space for accepting the motor; an outer ring radially spaced from said retaining ring and configured for attachment to a cylinder head of a combustion chamber; at least one resilient suspension element configured for dampening vibrations between a motor support and a tool frame, and having a plurality of resilient beams connecting the retaining ring and the outer ring, wherein at least one of said resilient beams is rectangular in cross-section, said plurality of resilient beams includes a plurality of upper resilient beams and a plurality of lower resilient beams; and a flexible web separating said plurality of upper resilient beams from said plurality of lower resilient beams.