Method of making an eyewear frame
OwnerKen Wilsoninventor
Life of this patent
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Abstract
A method of making an eyewear frame comprising the initial step of extruding an elongated billet of substantially rigid material having a top surface having predetermined convex cross-sectional initially as extruded curvature and a bottom surface having a predetermined concave cross-sectional initially as extruded curvature. The next step involves mounting a predetermined length of the elongated billet in a holding fixture of a computer numerical control (CNC) cutting machine. Next the CNC cutting machine is operated to cut out predetermined lens apertures and a finished eyewear frame around each of the previously machined lens apertures thereby producing a substantially stress free eyewear frame that is ready to have a stress free lens installed in its lens aperture.
Claims27
A method of making an eyewear frame comprising the following steps:
- a) forming an elongated extruded billet of substantially rigid material having a longitudinally extending X-axis and a predetermined length L1;
- said billet having a top surface, a bottom surface, a left edge and a right edge;
- said top surface having a predetermined convex cross-sectional initially as extruded curvature;
- said bottom surface having a predetermined concave cross-sectional initially as extruded curvature;
- b) mounting a predetermined length L2 of said elongated billet in a holding fixture;
- c) operating a cutting machine to cut out at least one predetermined lens aperture;
- and
- d) operating said cutting machine to cut out an eyewear frame around said previously machined lens apertures thereby producing a substantially stress free eyewear frame that is ready to have a stress free lens installed in said lens aperture.
A method of making an eyewear frame comprising the following steps:
- a) forming an elongated billet of substantially rigid material having a longitudinally extending X-axis, a front end a predetermined length L1;
- said billet having a top edge, a bottom edge, a left edge and a right edge;
- a pair of laterally spaced lens apertures extend parallel to said X-axis along the length of said elongated billet;
- b) mounting a predetermined length L2 of said elongated billet in a holding fixture;
- c) operating a cutting machine to cut a predetermined convex curvature in said front end of said elongated billet from said left edge to said right edge;
- d) operating said cutting machine to cut a pair of lens grooves in said front end of said lens apertures;
- and
- e) operating said cutting machine to cut off a slice from said front end of said elongated billet to form an eyewear frame having a predetermined concave curvature for its rear surface that extends from said left edge to said right edge of said extruded billet.
A method of making an eyewear frame comprising the following steps:
- a) forming an elongated extruded tubular billet of substantially rigid material having a longitudinally extending X-axis and a predetermined length L1;
- said billet having an outer cylinder surface, an inner cylinder surface, a front end and a rear end;
- said outer surface having a predetermined convex cross-sectional initially as extruded curvature;
- said inner surface having a predetermined concave cross-sectional initially as extruded curvature;
- b) mounting a predetermined length L2 of said elongated billet in a holding fixture;
- c) operating a cutting machine to cut out at least one predetermined lens aperture;
- and
- d) operating said cutting machine to cut out an eyewear frame around said previously machined lens apertures thereby producing a substantially stress free eyewear frame that is ready to have a stress free lens installed in said lens aperture.
A method of making an eyewear frame comprising the following steps:
- a) taking a substantially flat elongated billet sheet of substantially rigid material having a longitudinally extending X-axis, a top surface, a bottom surface, a left edge, a right edge and a predetermined length L1 and passing said flat billet between a predetermined number of rollers a predetermined number of times to form a modified billet having a top surface having a predetermined convex cross-section and a bottom surface having a predetermined concave cross-section;
- b) mounting a predetermined length L2 said elongated modified billet in a holding fixture;
- c) operating a cutting machine to cut out at least one predetermined lens aperture;
- and
- d) operating said cutting machine to cut out an eyewear frame around said previously machined lens apertures thereby producing a substantially stress free eyewear frame that is ready to have a stress free lens installed.
Dependencies are inferred from the claim text.