US3993403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulated fitting sheath for eyeglass temples
Assignee: Individual
•
Filing: 1975-04-04
•
Granted: 1976-11-23
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Expires: 1995-04-04
Abstract
Abstract Protective, removable, flexible insulated sheaths are employed on heat-softened temples of eyeglasses during fitting of the glasses to the head of the wearer to prevent injury or discomfort to the wearer. The temples are allowed to cool and harden while held in position on the head.
Inventors
- 👤 Roderick B. Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:06
CPC Classifications
G; G02; G02C; G02C11/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
92 words
A method for forming a sheath for encasing heat-softened eyeglass temples, comprising: a. providing a length of knit fabric; b. doubling back the fabric upon itself to form a lengthwise fold; c. stretching the fabric in the direction of the fold, and while maintaining the fabric in its stretched condition; d. fastening the mating edges of the fabric together to form a seam running substantially parallel to the bend whereby, when the stretching force is removed, the sheath assumes a bent orientation with the seam at the outer periphery of the bend.
Claim 2
Independent Claim
92 words
A method for forming a sheath for encasing heat-softened eyeglass temples, comprising: a. providing a length of knit fabric; b. doubling back the fabric upon itself to form a lengthwise fold; c. stretching the fabric in the direction of the fold, and while maintaining the fabric in its stretched condition; d. fastening the mating edges of the fabric together to form a seam running substantially parallel to the bend whereby, when the stretching force is removed, the sheath assumes a bent orientation with the seam at the outer periphery of the bend.
Claim 3
Independent Claim
84 words
A method for fitting a heat-softenable eyeglass temple closely to the head of a wearer, comprising heating the temple to the softening point, and placing the glasses on the head of the wearer with a flexible, elastic insulating sheath provided snuggly on the temple to protect the wearer's head from the heat of the temple; manipulating the sheathed, heat-softened, temple into conformance with the wearer's head; and maintaining the temple in the conformed orientation until it cools to a temperature below the softening point.
Claim 4
Independent Claim
84 words
A method for fitting a heat-softenable eyeglass temple closely to the head of a wearer, comprising heating the temple to the softening point, and placing the glasses on the head of the wearer with a flexible, elastic insulating sheath provided snuggly on the temple to protect the wearer's head from the heat of the temple; manipulating the sheathed, heat-softened, temple into conformance with the wearer's head; and maintaining the temple in the conformed orientation until it cools to a temperature below the softening point.
Claim 5
Dependent Claim
25 words
The method of claim 2 in which the temple is first heated to its softening point, and then the sheath is placed on the temple.
Claim 6
Dependent Claim
26 words
The method of claim 2 in which the sheath is porous and is placed on the temple before the latter is heated to its softening point.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-23 | 1980-05-24 | 1980-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-23 | 1984-05-24 | 1984-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-23 | 1988-05-24 | 1988-11-23 | $7700.00 | Window Closed / Lapsed |