US4951489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Key holder
Assignee: Individual
•
Filing: 1989-06-26
•
Granted: 1990-08-28
•
Expires: 2009-06-26
Abstract
Abstract A key holder which has a pair of shells for enclosing the keys which are connected together by a spring-loaded locking hinge. The keys are connected to the shells by at least one arm attached to one of the shells. The keys can be stacked on top of each other inside the key holder. The spring-loaded locking hinge generally holds the shells in a closed position relative to each other. This is accomplished by a knob on one part of the hinge which engages with a notch on another part inside the hinge. A spring kept in torsion and compression tends to urge the shells open so that when a button on the end of the hinge is pressed, the knob disengages the notch and the spring causes the shells to open.
Inventors
- 👤 Nathan C. Proch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:06
CPC Classifications
A; A45; A45C; A45C11/00; A45C11/32; A45C11/323; Y; Y10; Y10T; Y10T70/00; Y10T70/80; Y10T70/8432; Y10T70/8676
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
224 words
A key holder for holding keys comprising a pair of shells for enclosing keys; at least one arm attached to at least one of said shells for holding said keys; a hinge connecting the shells together to allow the shells to open and close relative to each other wherein said hinge is comprised of three hollow cylindrical portions one of which has a notch on an interior portion thereof and a spring within said hinge which when wound tends to urge the shells open; said three cylindrical portions comprising a top cylindrical portion and a bottom cylindrical portion both of which are connected to one of said shells and a central cylindrical portion connected to the other shell and which lies in between the top cylindrical portion and the bottom cylindrical portion; a body which is generally cylindrical in shape and fits inside the three hollow cylindrical portions and is able to move longitudinally therein; and wherein the means for locking the hinge is a projection on the outside of the body which fits into the notch inside one of said cylindrical portions so that the hinge and shells are locked when the projection fits into the notch and when the body is moved so that the projection moves out of the notch, the spring releases to allow the hinge and shells to open.
Claim 2
Dependent Claim
224 words
A key holder for holding keys comprising a pair of shells for enclosing keys; at least one arm attached to at least one of said shells for holding said keys; a hinge connecting the shells together to allow the shells to open and close relative to each other wherein said hinge is comprised of three hollow cylindrical portions one of which has a notch on an interior portion thereof and a spring within said hinge which when wound tends to urge the shells open; said three cylindrical portions comprising a top cylindrical portion and a bottom cylindrical portion both of which are connected to one of said shells and a central cylindrical portion connected to the other shell and which lies in between the top cylindrical portion and the bottom cylindrical portion; a body which is generally cylindrical in shape and fits inside the three hollow cylindrical portions and is able to move longitudinally therein; and wherein the means for locking the hinge is a projection on the outside of the body which fits into the notch inside one of said cylindrical portions so that the hinge and shells are locked when the projection fits into the notch and when the body is moved so that the projection moves out of the notch, the spring releases to allow the hinge and shells to open.
Claim 3
Dependent Claim
41 words
A key holder as in claim 1, further comprised of at least one liner placed inside the shells in such a manner that air pockets are formed between the keys and the shells to reduce the noise made by the keys.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-27 | 1994-02-26 | 1994-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-27 | 1998-02-26 | 1998-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-27 | 2002-02-26 | 2002-08-28 | $7700.00 | Window Closed / Lapsed |