Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Handle – handle component – or handle adjunct – Handle with ergonomic structure enhancements such as...
Reexamination Certificate
2000-08-23
2001-10-23
Knight, Anthony (Department: 3626)
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Handle, handle component, or handle adjunct
Handle with ergonomic structure enhancements such as...
C016S114100, C016S421000
Reexamination Certificate
active
06305052
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to hand held devices, and specifically relates to handles for such devices, and devices including such devices,
2. Present State of the Art
It is known to provide handles of tooth brushes with a certain degree of shaping to enable them to be comfortably and firmly held, but generally such candles are elongated rods, and do not provide the comfort and grip which might be expected, because when the fingers are wrapped round the rod handle, there is only limited contact between the rod and the fingers, and control and comfort are compromised.
BRIEF SUMMARY OF THE INVENTION
The present invention seeks to provide a handle of or for hand held devices, including toothbrushes, which is configured to provide enhanced comfort and firmness to the user.
According to the invention there is provided a handle for or of a hand held device, wherein the handle has on a side thereof a concave convex profile to accommodate the pad and base (or heel) of the thumb, opposite which side the handle is sufficiently bulbous to provide a surface against which all of the first three fingers of the user engage.
The handle is preferably moulded in plastics material, and can be used for or as part of any of a large variety of hand held devices, including tooth and other brushes, working tools such as screwdrivers, chisels, ratchet tools, and hand held articles in general.
REFERENCES:
patent: 2520355 (1950-08-01), Bell
patent: 5791055 (1998-08-01), Mangol
patent: 23 44 987 (1975-03-01), None
patent: 0 062 270 (1982-10-01), None
patent: 0 775 552 (1997-05-01), None
patent: 2 311 243 (1997-09-01), None
patent: 94 03052 (1994-02-01), None
patent: 96 32230 (1996-10-01), None
patent: 97 04927 (1997-02-01), None
patent: 97 07706 (1997-03-01), None
Knight Anthony
Ultradent Products Inc.
Williams Mark
Workman & Nydegger & Seeley
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