US4428506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Personal protection device
Assignee: Individual
•
Filing: 1981-11-30
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Granted: 1984-01-31
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Expires: 2001-11-30
Abstract
Abstract Persons can be protected against rape or other bodily assault by wearing this device which includes a frangible capsule of repellant material such as ammonia or fluids of noxious smell. The capsule of material is quickly opened by slashing it with a manually operable knife which for example, may be operated by a pull cord. Passages leading from the container area for the capsule lead to the body of the wearer, so that the body of the wearer will be wetted or otherwise covered with the foul smelling or repellant material. The pull cord may be attached to the clothing of the wearer so that removal of the clothing by an attacker will automatically cut the capsule to release the fluid.
Inventors
- 👤 Edward L. Withey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:47
CPC Classifications
F; F41; F41H; F41H9/00; F41H9/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
146 words
A personal protection device adapted to be carried inconspicuously on the body comprising: (a) a body member of generally flat shape having inner and outer surfaces and having a cavity formed in the outer surface and having passages leading from said cavity to at least one surface; (b) a frangible and flexible capsule disposed in the cavity and containing a repellant fluid; (c) a knife pivoted to the body member and having a rest position away from said cavity, and having an arc of movement across said cavity; (d) pull cord means connected to the knife for manually moving said knife through its arc of movement; (e) and a cap connected to said body member and covering said cavity, said cap and capsule having a size to hold the capsule stationary in the cavity so that it can be slashed when the knife is manually operated.
Claim 2
Dependent Claim
146 words
A personal protection device adapted to be carried inconspicuously on the body comprising: (a) a body member of generally flat shape having inner and outer surfaces and having a cavity formed in the outer surface and having passages leading from said cavity to at least one surface; (b) a frangible and flexible capsule disposed in the cavity and containing a repellant fluid; (c) a knife pivoted to the body member and having a rest position away from said cavity, and having an arc of movement across said cavity; (d) pull cord means connected to the knife for manually moving said knife through its arc of movement; (e) and a cap connected to said body member and covering said cavity, said cap and capsule having a size to hold the capsule stationary in the cavity so that it can be slashed when the knife is manually operated.
Claim 3
Dependent Claim
26 words
A personal protection device as set forth in claim 1 wherein detent means are provided for releasably holding the knife out of contact with the capsule.
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) | 1987-01-30 | 1987-08-01 | 1988-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-30 | 1991-08-01 | 1992-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-30 | 1995-08-01 | 1996-01-31 | $7700.00 | Window Closed / Lapsed |