US3807526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ear protector
Assignee: Illinois Tool Works Inc
•
Filing: 1972-10-26
•
Granted: 1974-04-30
•
Expires: 1992-10-26
Abstract
Abstract A noise reducing ear protector attached to the temple bars of spectacles of various types such as eyeglasses, protective goggles and the like, and including arm elements inclined downwardly and rearwardly from the temple bars to at least overlie the tragus and adjacent auditory canal opening for reducing high decibel noise levels such as constant and recurring sounds encountered in industrial operations from punch presses, riveting operations and many others; the overlying area of the arms may be rather minimal, or it may be enlarged with a removable and disposable pad, or further provided with a plug which may be at least partially mounted into the auditory canal opening.
Inventors
- 👤 H Sygnator
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:28
CPC Classifications
A; A61; A61F; A61F11/00; A61F11/06; A61F11/08; A61F11/12; A61F9/00; A61F9/02; A61F9/029; G; G02; G02C; G02C11/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
130 words
An ear protector in combination with spectacle temple bars, and comprising an arm integral with and carried by a temple bar and angled downwardly therefrom with the free end portion thereof disposed below an intermediate rear end portion of the temple bar, said arm being offset outwardly to a vertical plane generally parallel to the vertical plane of the adjacent temple bar, the offset distance not generally greater than the distance of the tragus portion of an ear from the associated temple bar and, in position to closely overlie entrace to the auditory canal of the adjacent ear for reducing effects of high decibel sound on the inner ear, the terminal portion of the arm including disposable means for restricting entry of sound to the inner portion of the ear.
Claim 2
Dependent Claim
130 words
An ear protector in combination with spectacle temple bars, and comprising an arm integral with and carried by a temple bar and angled downwardly therefrom with the free end portion thereof disposed below an intermediate rear end portion of the temple bar, said arm being offset outwardly to a vertical plane generally parallel to the vertical plane of the adjacent temple bar, the offset distance not generally greater than the distance of the tragus portion of an ear from the associated temple bar and, in position to closely overlie entrace to the auditory canal of the adjacent ear for reducing effects of high decibel sound on the inner ear, the terminal portion of the arm including disposable means for restricting entry of sound to the inner portion of the ear.
Claim 3
Dependent Claim
40 words
An ear protector as claimed in claim 1, wherein the means for restricting entry of sound includes a longitudinal slot in the extremity of the arm in cooperation with a removable enlarged pad gripped therein for increased sound barrier effect.
Claim 4
Dependent Claim
34 words
An ear protector in accordance with claim 1, wherein the arm portion is resilient and biased inwardly to press the tragus inwardly toward a position closing the auditory canal opening of an associated ear.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-29 | 1977-10-29 | 1978-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-29 | 1981-10-29 | 1982-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-29 | 1985-10-29 | 1986-04-30 | $7700.00 | Window Closed / Lapsed |