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US 8,032,991 B2Granted
Pry bar ergonomic handle
AssigneeMayhew Steel Products, Inc.
InventorJohn C. Lawless
Life of this patent
Estimating the term…
Abstract
A heavy duty hand tool handle has specifically configured thermoplastic and overmolded elastomeric material, with a thermoplastic grip and thumb receiving recesses for equal right and left hand ergonomic use. Metal indicia are forcibly embedded in the thermoplastic case to provide e.g. safety information which remains legible in long term heavy duty abrasive use.
Claims9
A tool handle comprising:
- a thermoplastic core comprising a central hole for receiving a shank;
- an elastomeric covering formed on the thermoplastic core;
- indicia forming material disposed within the thermoplastic core, said indicia material having indicia formed thereon;
- wherein the indicia material comprises a metallized sheet or foil, said sheet or foil has a predetermined thickness, said sheet or foil does not comprise a predetermined shape of the indicia to be formed, and wherein the indicia material by the predetermined thickness thereof extends outwardly from the thermoplastic core to a height about equal to a height of the elastomeric material, whereby the indicia is legible after being subjected to sandblasting under pressure, according to ASTM D968, Method A.
1 more element
A pry bar comprising:
- a handle having a distal end, a proximate end, and a through hole extending from the handle distal end to the handle proximate end;
- a grip portion disposed between the handle distal end and the handle proximate end, said grip portion comprising a thermoplastic core and an elastomeric material covering the core;
- two thumb receiving recesses being formed in the thermoplastic core disposed between the handle distal end and the handle proximate end;
- a blade, said blade having a proximate end and a distal end, said blade proximate end being secured within said handle distal end, said blade being elongate, said blade distal end being formed with a pry end, said pry end being in angular disposition;
- an impact cap disposed in the through hole adjacent to the proximate end of the handle;
- and
- wherein said thermoplastic core comprises an upper grip surface and a lower grip surface, said upper surface comprises product information indicia, and said lower grip surface comprises safety information indicia, wherein the indicia is formed from a metallized sheet or foil disposed within the thermoplastic core, said sheet or foil has a predetermined thickness, said sheet or foil does not comprise a predetermined shape of the indicia, wherein the sheet or foil by the predetermined thickness thereof extends outwardly from the thermoplastic core to a height about equal to the height of the elastomeric material, whereby the indicia is legible after being subjected to a sandblasting under pressure test comprising ASTM D968, Method A.
4 more elements
Dependencies are inferred from the claim text.