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US 5,760,868 AGranted
Unitary hingeless eyeglass frame
AssigneeOakley, Inc.
InventorsJames H. Jannard, Peter K. Yee
Life of this patent
Estimating the term…
Abstract
Disclosed is a hingeless eyeglass frame designed so the entire eyeglass frame provides a medially directed force at the posterior portion of the earstems to increase the retentive force between the eyewear and the head. In one vented embodiment, each lens of a dual-lens eyeglass is provided with a plurality of apertures extending therethrough, at the junction between the lens and the surrounding frame. The unitary frame or conventionally hinged frames may also have apertures to allow airflow for ventilation.
Claims16
A hingeless eyeglass frame for receiving a separate lens, comprising:
- an arcuate lens support section for extending across the front of the face of a wearer to support at least one lens in the wearer's line of sight, said support section having a central zone and first and second lateral zones, said support section further having a recess in the frame for receiving at least one lens;
- and
- first and second earstems extending from the first and second lateral zones such that when the frame is on the front of the wearer's head the first and second earstems extend posteriorly from the lens support section, past the wearer's ears, and towards each other partway around the back of the wearer's head, said first and second earstems terminating in first and second posterior ends;
- each of said earstems concave in a medial direction and having a separation between the first and second posterior ends within the range of about 2 inches to about 4 inches in an unstressed orientation:
- wherein the eyeglass frame is of a hingeless unitary construction.
2 more elements
Dependencies are inferred from the claim text.