Patent US3783864A successfully refreshed from Google Patents.
US3783864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ear plug
Assignee: Individual
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Filing: 1969-10-08
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Granted: 1974-01-08
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Expires: 1989-10-08
Abstract
Abstract The invention relates to an ear plug to be inserted into the auditory meatus of an ear, having an exterior member of a soft flexible material and an interior tubular member which extends through the exterior member from one end thereof, and having manually operable means, operatively connected with the exterior as well as the interior member, operable to cause an expansion of the exterior member and thereby engage the exterior member firmly against the wall of the auditory canal.
Inventors
- 👤 F Moller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:23
CPC Classifications
H; H04; H04R; H04R25/00; H04R25/65; H04R25/652; H04R25/656
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
160 words
An ear plug to be inserted into the auditory canal of a human ear comprising: a tubular member (16) of a relatively stiff material and having along at least a part of its length a screw-threaded portion (24); a substantially pear-shaped hollow member (10) of a relatively soft resilient material surrounding said tubular member (16) and extending from adjacent said screw-threaded portion of said tubular member (16) to the end thereof, said pear-shaped hollow member having an outwardly extending flange (20) in the portion thereof adjacent said screw-threaded portion (24) of said tubular member (16); a screw-threaded nut member (26) mounted on said screw-threaded portion of said tubular member (16) and engaging an internal portion of said outwardly extending flange (20) for preventing displacement of said pear-shaped hollow member (10) beyond the end of said tubular member, such that when said nut member (26) is threaded onto said tubular member (16), said pear-shaped hollow member (10) is caused to deform.
Claim 2
Dependent Claim
160 words
An ear plug to be inserted into the auditory canal of a human ear comprising: a tubular member (16) of a relatively stiff material and having along at least a part of its length a screw-threaded portion (24); a substantially pear-shaped hollow member (10) of a relatively soft resilient material surrounding said tubular member (16) and extending from adjacent said screw-threaded portion of said tubular member (16) to the end thereof, said pear-shaped hollow member having an outwardly extending flange (20) in the portion thereof adjacent said screw-threaded portion (24) of said tubular member (16); a screw-threaded nut member (26) mounted on said screw-threaded portion of said tubular member (16) and engaging an internal portion of said outwardly extending flange (20) for preventing displacement of said pear-shaped hollow member (10) beyond the end of said tubular member, such that when said nut member (26) is threaded onto said tubular member (16), said pear-shaped hollow member (10) is caused to deform.
Claim 3
Dependent Claim
35 words
An ear plug According to claim 1 including a washer (28) interposed between said nut member (16) and said flange (20), said washer (28) bearing against said internal portion of said flange (20) in use.
Claim 4
Dependent Claim
59 words
An ear plug according to claim 1 wherein said tubular member (16) has a flange (18) at the end thereof and said pear-shaped hollow member (10) has an opening at the end thereof through which said tubular member (16) extends with the flange (18) of said tubular member bearing against the outer surface of said pear-shaped hollow member (10).
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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |