Patent US3686691A successfully refreshed from Google Patents.
US3686691A
Expired / Lapsed
US
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Ear-protecting device
Assignee: Sellstrom Manufacturing Co
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Filing: 1970-08-26
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Granted: 1972-08-29
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Expires: 1990-08-26
Abstract
Abstract An ear-protecting device is provided which is mounted so as to be substantially self-adjusting and thus, conform substantially to the portion of the head of the wearer which is circumjacent the accommodated ear. The device includes a supporting arm and an ear-acommodating unit which is connected thereto and is adjustable about a plurality of angularly disposed axes.
Inventors
- 👤 Marshall N Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:42
CPC Classifications
A; A61; A61F; A61F11/00; A61F11/06; A61F11/14
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
138 words
An ear-protecting device comprising an elongated supporting arm having one end thereof adapted to be disposed in proximity to an ear of the wearer of said device, and a substantially selfadjusting ear-accommodating unit; said unit including an outer casing having an open side through which the ear of the wearer passes when said device is worn and a first complemental connector means disposed on the exterior of said casing opposite said open side, a second complemental connector means engaging said first connector means and mounted for rotation only with respect thereto about a fixed first axis disposed substantially perpendicular to the open side of said casing, said second complemental connector means being mounted on said supporting arm for limited pivotal movement about a fixed second axis; said first and second axes being transversely disposed relative to one another.
Claim 2
Dependent Claim
138 words
An ear-protecting device comprising an elongated supporting arm having one end thereof adapted to be disposed in proximity to an ear of the wearer of said device, and a substantially selfadjusting ear-accommodating unit; said unit including an outer casing having an open side through which the ear of the wearer passes when said device is worn and a first complemental connector means disposed on the exterior of said casing opposite said open side, a second complemental connector means engaging said first connector means and mounted for rotation only with respect thereto about a fixed first axis disposed substantially perpendicular to the open side of said casing, said second complemental connector means being mounted on said supporting arm for limited pivotal movement about a fixed second axis; said first and second axes being transversely disposed relative to one another.
Claim 3
Dependent Claim
67 words
The ear-protecting device of claim 1 wherein said elongated supporting arm comprises an inner section and an outer section; said sections being interconnected for relative pivotal movement about a third axis; said outer section being connected to said second complemental connector means; said third axis being angularly disposed relative to said first and second axes and in non-intersecting relation with respect to at least said second axis.
Claim 4
Dependent Claim
43 words
The ear-protecting device of claim 2 wherein the outer section of said supporting arm terminates in a fork having tines with the ends thereof pivotally connected to the second complemental connector means of said ear-accommodating unit, said Pivotal connection defining said second axis.
Claim 5
Dependent Claim
67 words
The ear-protecting device of claim 3 wherein the outer section of said supporting arm is provided with stop means engageable with said second complemental connector means for limiting pivotal movement thereof about said second axis to a predetermined sector; said stop means comprising a lug projecting from the juncture of the tines of said fork and movable within a slot formed in said second complemental connector means.
Claim 6
Dependent Claim
32 words
The ear-protecting device of claim 1 wherein said supporting arm carries stop means cooperating with said unit for restricting pivotal movement of the latter about said second axis to a predetermined sector.
Claim 7
Dependent Claim
35 words
The ear-protecting device of claim 1 wherein an elongated supporting arm is provided at each end of a head-engaging band and a substantially self-adjusting ear-accommodating unit of like construction is connected to each supporting arm.
Claim 8
Dependent Claim
91 words
The ear-protecting device of claim 1 wherein said first complemental connector means includes a protuberance formed on the exterior of said casing opposite the open side of said casing, said protuberance having an annular periphery and an axially disposed opening formed therein; said second complemental connector means includes a socketlike element encompassing said protuberance, said socketlike element being provided with an opening coincident to said protuberance opening, and fastener means disposed within said coincident openings for retaining said complemental connector means in assembled relation; said fastener means defining said first axis.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |