Patent US4015602A successfully refreshed from Google Patents.
US4015602A
Expired / Lapsed
US
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Ear mold injection dispenser
Assignee: Mid States Laboratories Inc
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Filing: 1975-12-08
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Granted: 1977-04-05
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Expires: 1995-12-08
Abstract
Abstract An ear mold injection dispenser for dispensing impression material into an ear canal and a cavity of the ear. The dispenser includes a tubular body having a valve. The impression material is mixed inside the tubular body. A plunger is inserted into the tubular body and the valve is open. The plunger pushes the material through the valve into a funnel which is inserted into the ear. The funnel is detachable from the tubular body so that the correct size of funnel can be selected for inserting inside the ear canal.
Inventors
- 👤 Eugene A. Nelson
- 👤 Woodrow R. Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:18
CPC Classifications
A; A61; A61F; A61F11/00; A61M; A61M3/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
169 words
An ear mold injection dispenser for receiving and mixing ear impression material therein and dispensing the material into the ear canal and the cavity of the ear, the dispenser comprising: a tubular body having an opening in a first end portion of said body, an opening in a second end portion of said body, said body having an outer circumference and an inner circumference, the front of the second end portion of said body including outwardly extending posts integrally formed therein; a sliding plunger received in the opening of the first end portion of said body, the sides of said plunger disposed adjacent the inner circumference of said body; a funnel having a first end portion and a second end portion, the first end portion of said funnel including a flange portion therearound, said flange portion having apertures therethrough for receiving said posts therein in a snap fit; and a valve slidably mounted between the first end portion of said funnel and the second end portion of said body.
Claim 2
Dependent Claim
169 words
An ear mold injection dispenser for receiving and mixing ear impression material therein and dispensing the material into the ear canal and the cavity of the ear, the dispenser comprising: a tubular body having an opening in a first end portion of said body, an opening in a second end portion of said body, said body having an outer circumference and an inner circumference, the front of the second end portion of said body including outwardly extending posts integrally formed therein; a sliding plunger received in the opening of the first end portion of said body, the sides of said plunger disposed adjacent the inner circumference of said body; a funnel having a first end portion and a second end portion, the first end portion of said funnel including a flange portion therearound, said flange portion having apertures therethrough for receiving said posts therein in a snap fit; and a valve slidably mounted between the first end portion of said funnel and the second end portion of said body.
Claim 3
Dependent Claim
40 words
The dispenser as described in claim 1 further including, an annular shaped grip slidably mounted around the outer circumference of said body, said grip having outwardly extending handles for holding the dispenser when dispensing the impression material into the ear.
Claim 4
Dependent Claim
112 words
The dispenser as described in claim 1 wherein, said sliding plunger comprises: elongated intersecting support members, the edges of the support members disposed adjacent the inner circumference of said body when said plunger is received therein; a convex annular shaped first end portion attached at one end of the support members, the convex annular shaped first end portion contacting the impression material inside said body and dispensing the material through the opening in the second end portion of said body; and an annular shaped second end portion attached to the other end of the support members, the second end portion used to push said plunger through the inner circumference of said body.
Claim 5
Dependent Claim
78 words
The dispenser as described in claim 1 wherein, said valve is rectangular in shape having an aperture therein, said valve received in a slot in the second end portion of said body, the ends of said valve extending outwardly from said body for moving said valve in the slot so that the aperture of said valve can be aligned with the opening of the second end portion of said body for dispensing the impression material into the ear.
Claim 6
Dependent Claim
38 words
The dispenser as described in claim 1 wherein, said funnel is tapered inwardly from the first end portion to the second end portion, the second end portion rounded at the ends thereof for inserting into the ear canal.
Claim 7
Dependent Claim
35 words
The dispenser as described in claim 5 wherein, said funnel is detachable from said body for attaching a selected funnel having a different size second end portion for inserting into a different size ear canal.
References Cited (Backward Citations)
US904745A
Cited
US1119033A
Cited
US2842127A
Cited
US2969167A
Cited
US3316909A
Cited
US3648695A
Cited
US3884231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-04 | 1980-10-04 | 1981-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-04 | 1984-10-04 | 1985-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-04 | 1988-10-04 | 1989-04-05 | $7700.00 | Window Closed / Lapsed |