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US 4,712,267 AGranted
Convertible toothbrush
OwnerPeter S. C. Chenginventor
Life of this patent
Estimating the term…
Abstract
A flexible brush block is moved along a shape-retaining S-shaped handle whose curved end regions of opposite curvature are responsible for bending the flexible block and bristles that are supported thereon into either a generally concave or a convex configuration.
Claims17
A convertible toothbrush, comprising:
- an elongated handle of shape-retaining material and having a curved portion;
- a flexible brush block for supporting bristles;
- and
- means mounting the flexible brush block on the handle for longitudinal movement along the elongation of the handle, said curved portion bending the flexible block and the bristles supported thereon into a correspondingly curved configuration when the flexible block is moved onto the curved portion.
1 more element
A convertible toothbrush, comprising:
- a generally S-shaped handle of shape-retaining material and having curved end portions of opposite curvature;
- a flexible, bendable brush block for supporting bristles;
- and
- means mounting the flexible block on the handle for movement between one of the curved end portions in which the one curved end portion bends the flexible block and the bristles supported thereon into a generally concave configuration, and another of the curved end portions in which the other curved end portion bends the flexible block and the bristles supported thereon into a generally convex configuration.
1 more element
Dependencies are inferred from the claim text.