Floating eyewear and method of making floating eyewear
OwnerWen-Yi Hsuinventor
Life of this patent
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Abstract
Eyewear, and more particularly floating eyewear such as eyeglasses and/or sunglasses may include a frame, temples, and lenses wherein the frame and/or temples may be formed form the combination of a blowing agent and a polymer so as to render the eyewear floating. A method for making floating eyewear is also contemplated wherein a heat-activated blowing agent is dry-blended with a plastic resin to form a mixture which is loaded into a hopper coupled to a cylinder, after which the mixture is heated to a molten form, injected into a mold, cooled, and then later ejected from the mold.
Claims28
Floating eyeglasses comprising:
- a shape-memory elongate frame having slotted receptors therein, the frame comprised of a closed-cell composition, and having a density sufficient for floating;
- two shape-memory temples pivotally coupled to the frame, the temples comprised of a closed-cell composition, and having a density sufficient for floating;
- and
- two lenses coupled within the slotted receptors of the elongate frame;
- wherein the eyeglasses have an overall density sufficient for floating.
Floating eyeglasses comprising:
- a substantially rigid yet flexible elongate frame having receptors therein, the frame formed of a first closed-cell composition comprising a mixture of plastic and blowing agent wherein the ratio of plastic to blowing agent ranges from 95:5 to 99.35:0.65, the first composition having a density sufficient for floating;
- two substantially rigid yet flexible elongate temples coupled to the frame, the temples formed of a second closed-cell composition comprising a mixture of plastic and blowing agent wherein the ratio of plastic to blowing agent ranges from 95:5 to 99.35:0.65, the second composition having a density sufficient for floating;
- and
- two lenses interferingly coupled with the receptors of the elongate frame;
- wherein the eyeglasses have an overall density sufficient for floating.
Floating eyeglasses comprising:
- a one-piece elongate arced frame having receptors therein, the frame formed of a closed-cell composition comprising plastic and a blowing agent;
- two arced temples coupled to the frame, the temples formed of a closed-cell composition comprising plastic and a blowing agent;
- and
- two plastic lenses interferingly coupled with the receptors of the elongate frame;
- wherein the eyeglasses float.
Eyeglasses comprising:
- a shape-memory elongate frame which includes a closed-cell composition and a slotted receptor;
- a lens coupled to the slotted receptor;
- and
- two shape-memory temples which include a closed-cell composition, the temples pivotally coupled to the frame;
- wherein the overall density of the eyeglasses is such that the eyeglasses will sink less than five feet below the surface of water.
Eyeglasses comprising:
- a shape-memory elongate frame which includes a closed-cell composition and a slotted receptor;
- a lens coupled to the slotted receptor;
- and
- two shape-memory temples which include a closed-cell composition, the temples pivotally coupled to the frame;
- wherein the lens comprises a material selected from the group consisting of:
- polycarbonate, tri-acetyl cellulose, polymethyl methacrylate, polyamide, cellulose acetate butyrate, and polyurethane;
- wherein each closed-cell composition comprises a plastic and a blowing agent, the ratio of plastic to blowing agent ranging from 95:5 to 99.35:0.65, the plastic selected from the group consisting of:
- polyurethane, thermoplastic polyurethane, polycarbonate, polyamide, cellulose acetate butyrate, and cellulose acetate propionate, and the blowing agent selected from the group consisting of Treibmittel (“Lifobatch”) Z 1000, Tracel IM 2240 ST, and Tracel IM 3170 MS;
- wherein the overall density of the eyeglasses is such that the eyeglasses will sink less than five feet below the surface of water.
Dependencies are inferred from the claim text.