Method for manufacturing continuous compression molded archery bow limb portions and the archery bow limb portions produced thereby
AssigneeBear Archery, Inc.
InventorGary L. Simonds
Life of this patent
Estimating the term…
Abstract
The method of the present invention comprises inserting a moldable slug having a plurality of longitudinally oriented resin impregnated predominantly glass fiber filaments into a bow limb profiling mold. The mold consists of two halves, the first half containing two female cavities and a second half having two matching fitted male sections. Each cavity receives a predetermined volume and weight of continuous longitudinal fibrous reinforcement material and plastic resin matrix material. Heat and pressure are applied during initial curing and the uncured end is removed. The slug is then finally cured.
Claims9
A method of compression molding a continuous right archery bow limb and left archery bow limb for connecting to the same end of a bow handle comprising the steps of:
- a) forming a moldable slug composed of a plurality of longitudinally oriented resin impregnated glass fiber filaments;
- b) disposing said slug into a compression mold assembly comprising a first mold and a second mold, a cavity in the first mold and a mating member in the second mold, said cavity having a first cavity profiled to provide the configuration of the right limb portion and a second cavity in non-linear relation to said first cavity and profiled to provide the left limb portion, said cavity and mating mold cooperating to form said slug into a right limb portion and a connected left limb portion which is connected to the same side of a bow handle and wherein said mold assembly includes means for varying the distances between portions of the cavity and mating member;
- and
- c) curing said slug.
A method of compression molding a continuous right archery bow limb and left archery bow limb, wherein said right archery bow limb has a first end connected to one end of a bow handle and a second end which forms part of a limb slot, and said left archery bow limb has a first end connected to the same end of the bow handle as said right archery bow limb and a second end which forms part of a limb slot, said method comprising the steps of:
- a) forming a moldable slug composed of a plurality of longitudinally oriented resin impregnated glass fiber filaments;
- b) disposing said slug into a compression mold assembly comprising a first mold and a second mold, a cavity in the first mold and a mating member in the second mold, said cavity having a first cavity profiled to provide the configuration of the right limb portion and a second cavity in non-linear relation to said first cavity and profiled to provide the left limb portion, said cavity and mating mold cooperating to form said slug into a right limb portion and a connected left limb portion;
- and
- c) curing said slug.
A method of compression molding a continuous right archery bow limb and left archery bow limb for connecting to the same end of a bow handle comprising the steps of:
- a) forming a moldable slug composed of a plurality of longitudinally oriented resin impregnated glass fiber filaments;
- b) disposing said slug into a compression mold assembly comprising a first mold and a second mold, a cavity in the first mold and a mating member in the second mold, said cavity having a first cavity profiled to provide the configuration of the right limb portion and a second cavity in non-linear relation to said first cavity and profiled to provide the left limb portion, said cavity and mating mold cooperating to form said slug into a right limb portion and a connected left limb portion which is connected to the same side of a bow handle and wherein said mold assembly includes means for producing limb portions of variable cross-sectional areas;
- and
- c) curing said slug.
Dependencies are inferred from the claim text.