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US 9,168,639 B2Granted
Flexible sander
OwnerThomas E. Fosterinventor
Life of this patent
Estimating the term…
Abstract
A flexible sanding apparatus includes a thin, relatively flat spring member and one or more coil spring members coupled to a first side of the flat spring member along a length of the flat spring member. A sanding surface may be coupled to a second side of the flat spring member. The flat spring member and the coil spring members may be elongated members coupled together lengthwise. The coil spring member may be a closed coil spring member that allows concave flexing of the sanding surface and inhibits convex flexing of the sanding surface.
Claims19
A sanding apparatus, comprising:
- a thin, relatively flat spring member;
- and
- one or more coil spring members coupled to a first side of the flat spring member along a length of the flat spring member;
- wherein a sanding surface is configured to be coupled to a second side of the flat spring member, and wherein at least one of the coil spring members inhibits convex flexing of the sanding surface.
1 more element
A sanding apparatus, comprising:
- a first thin, relatively flat spring member;
- one or more coil spring members coupled to a first side of the flat spring member along a length of the flat spring member;
- and
- a first cover portion at least partially enclosing the coil spring members on the first flat spring member;
- wherein a first sanding surface is configured to be coupled to a second side of the flat spring member, and wherein at least one of the coil spring members inhibits convex flexing of the first sanding surface.
2 more elements
A sanding apparatus, comprising:
- a thin, relatively flat spring member;
- and
- one or more coil spring members coupled to a first side of the flat spring member along a length of the flat spring member, wherein at least one of the coil spring members comprises an open coil spring member;
- wherein a sanding surface is configured to be coupled to a second side of the flat spring member.
1 more element
Dependencies are inferred from the claim text.