US4752072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telescoping self-defense keychain
Assignee: Armament Systems and Procedures Inc
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Filing: 1986-12-22
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Granted: 1988-06-21
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Expires: 2006-12-22
Abstract
Abstract A telescoping self-defense keychain includes a keyring attached on a swivel for tethering one or more keys. The keychain may also be used for self-defense or by police to control a suspect during arrest. The keychain has a telescoping member which may be extended to increase the overall length of the keychain to provide more effective use as a weapon. The telescoping member is held in the extended position by a flared end on the telescoping member which wedges into a swaged end of the handle. A leaf spring engages the flared end of the telescoping member to retain it in a retracted position.
Inventors
- 👤 Kevin L. Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:35
CPC Classifications
A; A44; A44B; A44B15/00; A44B15/005; F; F41; F41B; F41B15/00; F41B15/02; F41B15/022; F41B15/025; Y; Y10; Y10T; Y10T70/00; Y10T70/80; Y10T70/8432; Y10T70/8676
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
114 words
A self-defense keychain comprising: a handle member having a cavity in the interior with an opening on one end of the handle exposing the cavity; a keyring attached to one end of the handle; a telescoping member disposed in the cavity of the handle and having a tip end which extends through the opening in the handle, the telescoping member being movable between a retracted position and an extended position; locking means for locking the telescoping member in the extended position, the locking means comprising a flared end on the telescoping member which wedges into a swaged end on the handle member; and retaining means for holding the telescoping member in the retracted position.
Claim 2
Dependent Claim
114 words
A self-defense keychain comprising: a handle member having a cavity in the interior with an opening on one end of the handle exposing the cavity; a keyring attached to one end of the handle; a telescoping member disposed in the cavity of the handle and having a tip end which extends through the opening in the handle, the telescoping member being movable between a retracted position and an extended position; locking means for locking the telescoping member in the extended position, the locking means comprising a flared end on the telescoping member which wedges into a swaged end on the handle member; and retaining means for holding the telescoping member in the retracted position.
Claim 3
Dependent Claim
38 words
The self-defense keychain as recited in claim 1 in which the retaining means comprises a leaf spring which engages the flared end of the telescoping member with sufficient friction to hold the telescoping member in the retracted position.
Claim 4
Dependent Claim
22 words
The self-defense keychain as recited in claim 2 in which the handle includes a swivel with a hole for attaching the keyring.
Claim 5
Dependent Claim
46 words
The self-defense keychain as recited in claim 3 in which the handle includes an end cap which is threaded into one end of the handle, the end cap containing an axial hole through which the swivel passes, the swivel being thereby retained by the end cap.
Claim 6
Dependent Claim
31 words
The self-defense keychain as recited in claim 4 in which the tip end of the telescoping member is a separate piece which is threaded into the telescoping member and is removable.
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) | 1991-06-21 | 1991-12-21 | 1992-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-21 | 1995-12-21 | 1996-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-21 | 1999-12-21 | 2000-06-21 | $7700.00 | Window Closed / Lapsed |