Patent US4321998A successfully refreshed from Google Patents.
US4321998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Earplug container
Assignee: North Safety Products LLC
•
Filing: 1980-03-06
•
Granted: 1982-03-30
•
Expires: 2000-03-06
Abstract
Abstract A combined protective case and inserter for earplugs has a cover held in a closed or an open position by a frictional backing feature, and can be reversed whereby either one of two earplug inserting means are exposed externally for the case for aiding the insertion of the earplug into a users ear.
Inventors
- 👤 Roger Van de Walker
- 👤 Weston E. Draper, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:59
CPC Classifications
A; A61; A61F; A61F11/00; A61F11/06; A61F11/08; A61B; A61B50/00; A61B50/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
166 words
An earplug container having a cylindrical collar in one end thereof, and a cover, said cover being adapted to pivot about said cylindrical collar, said cover having oppositely projecting male and female inserter members each having a cylindrical portion adapted to engage said cylindrical collar in said container, said collar including a recess at the bottom thereof for assembly of said cover on said container and including a cam surface, a boss on each of said cylindrical inserter adapted to pass through said recess and engage said cam surface on the bottom of said collar, said cam surface being so arranged as to urge said cover downwardly against said container when the cover is pivoted about said cylindrical collar toward its closed position, and latch means at the opposite end of said container detent means on said cover overlying said latch means, said latch cooperating with a detent on said cover to latch said cover in closed position and to urge said cover against said container.
Claim 2
Dependent Claim
166 words
An earplug container having a cylindrical collar in one end thereof, and a cover, said cover being adapted to pivot about said cylindrical collar, said cover having oppositely projecting male and female inserter members each having a cylindrical portion adapted to engage said cylindrical collar in said container, said collar including a recess at the bottom thereof for assembly of said cover on said container and including a cam surface, a boss on each of said cylindrical inserter adapted to pass through said recess and engage said cam surface on the bottom of said collar, said cam surface being so arranged as to urge said cover downwardly against said container when the cover is pivoted about said cylindrical collar toward its closed position, and latch means at the opposite end of said container detent means on said cover overlying said latch means, said latch cooperating with a detent on said cover to latch said cover in closed position and to urge said cover against said container.
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) | 1985-03-29 | 1985-09-28 | 1986-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-29 | 1989-09-28 | 1990-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-29 | 1993-09-28 | 1994-03-30 | $7700.00 | Window Closed / Lapsed |