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AssigneeGemtron Corporation
InventorsGary Reames, Bob Herrmann, Howard Daley, Ron Peel
Estimating the term…
An article of manufacture, such as an encapsulated dual lens sealed instrument cover, includes four components, namely, a first lens having a peripheral edge encapsulated by a polymeric/polymeric injection molded encapsulation or border and a second lens also have a peripheral edge encapsulated by a second injection molded polymeric/copolymeric encapsulation or border. A hermetic chamber is thereby formed between the two lenses. The first encapsulation is also provided with threads or similar fastening means to readily secure the instrument cover to an instrument “can” containing any variety of instruments, such as a nautical compass, amperage/voltage, fuel, etc. The first lens is inserted into a cavity of a mold and the first encapsulation is injection molded thereabout. The latter two components are then assembled with respect to the second lens and the second encapsulation is injection molded thereabout. This double injection molding process to manufacture the dual lens sealed instrument cover creates “anti-fog” characteristics and allows more rapid and cost-effective manufacturing than heretofore provided by conventional techniques utilizing metal crimping and sealing techniques.
A method of forming a unitized article comprising the steps of:
An article of manufacture comprising at least four components, first and second of said components being sheets each having a peripheral edge portion, a third of said components including a first injection molded border portion of polymeric/copolymeric synthetic plastic material in substantially complete continuous peripherally encapsulating relationship to said first sheet peripheral edge portion, a fourth of said components including a second injection molded border portion of polymeric/copolymeric synthetic plastic material in substantially complete continuous peripherally encapsulating relationship to said second sheet peripheral edge portion and in unitized relationship to said first border portion, and a terminal edge of said second sheet being in substantial registration with a locating surface of said first injection molded border portion.
A method of forming a unitized article comprising the steps of providing first and second pieces of glass each having a peripheral edge, locating the first glass piece peripheral edge in a first annular cavity, injection molding hot polymeric/copolymeric synthetic plastic material into the first annular cavity to form a first annular border encapsulating the first glass piece peripheral edge, locating the second glass piece peripheral edge against the first annular border and within a second annular cavity, and injection molding hot polymeric/copolymeric synthetic plastic material into the second annular cavity to form a second annular border encapsulating the first annular border and the second glass piece peripheral edge and unitizing the last-mentioned peripheral edge and borders.
Dependencies are inferred from the claim text.