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US 2008/0184859 A1Published application
Base For A Paper Punch and Method of Forming Same
AssigneeLee Tack Plastic & Metal Manufactory Ltd.
InventorKwok Ki Stephen CHAN
Life of this patent
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Abstract
A method of forming a base (118) for a paper punch (154) is disclosed as including the steps of (a) providing a cast iron core (102) with a wall (104) and a plate (106) with a hole (108); (b) providing two generally U-shaped cast iron plates (110); (c) positioning the plates (110) spaced apart from and on opposite sides of the core (102); and (d) insert-moulding the core (102) and plates (106) with a plastics material, e.g. ABS.
Claims27
A method of forming a base for a paper punch, including the steps of:
- (a) providing a core part with a wall member and a plate with at least one hole;
- (b) providing at least two generally U-shaped plate members;
- and
- (c) insert-moulding at least said core part with a plastics material.
1 more element
A base for a paper punch, including:
- a body part fixedly engaged with
- a core part with a wall member and a plate with at least one hole;
- and
- two generally U-shaped plate members spaced apart from and on opposite sides of said core part;
- wherein said core part and plate members are made of a material different from that with which said body part is made.
2 more elements
Dependencies are inferred from the claim text.