US3873192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable temple for eyeglasses
Assignee: Sellstrom Manufacturing Co
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Filing: 1974-02-28
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Granted: 1975-03-25
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Expires: 1994-02-28
Abstract
Abstract Adjustable temples are provided which are adapted to be connected to the frame of a pair of eyeglasses. Each temple is of like construction and includes first and second members slidably interconnected and manually adjustable to assume selected positions of adjustment wherein the length of the temple may be varied. One of the members is provided with an elongated longitudinally extending guideway in which a portion of the other member is slidably disposed. An elongated, longitudinally extending resilient member is disposed within the guideway. A portion of the other member is positioned between and is in frictional engagement with the resilient member and a wall of the guideway. The manual adjustment of the members is effected only when a predetermined amount of external force is applied so as to overcome the frictional engagement retaining the members in a selected position of adjustment.
Inventors
- 👤 Marshall N Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:40
CPC Classifications
G; G02; G02C; G02C5/00; G02C5/14; G02C5/20
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
156 words
An adjustable temple for the frame of a pair of eyeglasses, said temple comprising elongated first and second members slidably interconnected and manually adjustable to assume selected relative positions, said first member having one end for hingedly connecting to the frame, said second member having an ear-engaging portion, one of said members being provided with an elongated, longitudinally extending guideway open at one end, the other member having an elongated shank portion extending through the open one end and being disposed within said guideway for selected sliding adjustment; and an elongated longitudinally extending spring means disposed substantially moveable independently thereof to within said guideway and resiliently engage said shank portion and effect frictional engagement thereof between said spring means and a wall of said guideway whereby said first and second members are retained in a selected position of adjustment until a predetermined external force is applied to the members overcoming the resistance of the frictional engagement.
Claim 2
Dependent Claim
156 words
An adjustable temple for the frame of a pair of eyeglasses, said temple comprising elongated first and second members slidably interconnected and manually adjustable to assume selected relative positions, said first member having one end for hingedly connecting to the frame, said second member having an ear-engaging portion, one of said members being provided with an elongated, longitudinally extending guideway open at one end, the other member having an elongated shank portion extending through the open one end and being disposed within said guideway for selected sliding adjustment; and an elongated longitudinally extending spring means disposed substantially moveable independently thereof to within said guideway and resiliently engage said shank portion and effect frictional engagement thereof between said spring means and a wall of said guideway whereby said first and second members are retained in a selected position of adjustment until a predetermined external force is applied to the members overcoming the resistance of the frictional engagement.
Claim 3
Dependent Claim
48 words
The adjustable temple of claim 1 wherein said first member is provided with said guideway and includes an element which extends transversely of said guideway, and said second member is provided with said shank portion having an elongated, longitudinally extending slot formed therein and slidably accommodating said element.
Claim 4
Dependent Claim
16 words
The adjustable temple of claim 2 wherein the slot formed within the shank portion is open-ended.
Claim 5
Dependent Claim
25 words
The adjustable temple of claim 1 wherein the elongated spring means within said guideway comprises a leaf spring adapted to normally assume a bowed condition.
Claim 6
Dependent Claim
22 words
The adjustable temple of claim 4 wherein the length of said leaf spring is substantially coextensive with the length of said guideway.
Claim 7
Dependent Claim
24 words
The adjustable temple of claim 2 wherein said spring means is provided with an opening slidably accommodating a portion of said transversely extending element.
Claim 8
Dependent Claim
22 words
The adjustable temple of claim 6 wherein the transversely extending element is a rivet interconnecting inner and outer walls of said guideway.
Claim 9
Dependent Claim
94 words
The adjustable temple of claim 4 wherein the length of said leaf spring is substantially less than the length of said guideway, and said one member is provided with a pair of longitudinally spaced elements disposed within said guideway and extending Transversely thereof; one of said elements being slidably accommodated within an opening formed in said leaf spring and the second of said elements being disposed endwise of said leaf spring; the shank portion of said other member being provided with an elongated longitudinally extending slot slidably accommodating said pair of transversely extending elements.
Claim 10
Dependent Claim
28 words
The adjustable temple of claim 1 wherein said second member is provided with said guideway, said guideway and the ear-engaging portion of said member being in endwise relation.
Claim 11
Dependent Claim
19 words
The adjustable temple of claim 2 wherein said transversely extending element interconnects inner and outer walls forming said guideway.
Claim 12
Dependent Claim
60 words
The adjustable temple of claim 10 wherein the inner wall includes a pair of sections arranged in endwise relation, one of said sections being elongated and having an end thereof disposed adjacent the end of said first member adapted to be hingedly connected to the frame, said inner wall one section being interconnected to the outer wall by said element.
References Cited (Backward Citations)
US3133141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |