US2022412699A1PendingUtilityA1
Self-defence Apparatus
Est. expiryJun 2, 2040(~13.8 yrs left)· nominal 20-yr term from priority
Inventors:Alistair Blair
F41H 9/10A44C 25/002A44C 15/002A44C 15/005A44C 25/001
18
PatentIndex Score
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Claims
Abstract
A pendant comprises a first part that is detachable from a second part. The first part comprises an attachment for a necklace. The second part contains a friction-actuated explosive and at least one defensive substance. The second part comprises an outlet for the defensive substance. The first part is connected to the friction-actuated explosive such that when the first part is detached from the second part the explosive may be actuated to expel the defensive substance from the outlet.
Claims
exact text as granted — not AI-modified1 . A pendant comprising a first part that is detachable from a second part; wherein:
the first part comprises an attachment for a necklace; a second part contains a friction-actuated explosive and at least one defensive substance; the second part comprises an outlet for the defensive substance; the first part is connected to the friction-actuated explosive such that when the first part is detached from the second part the explosive may be actuated to expel the defensive substance from the outlet.
2 . The pendant of claim 1 wherein the outlet is located at a region of the pendant that is positioned lowermost when the pendant is worn by a user.
3 . The pendant of claim 1 wherein the pendant is elongate and the outlet is located at an end of the pendant that is positioned lowermost when the pendant is worn by a user.
4 . The pendant of claim 1 wherein the pendant comprises a displaceable covering at its outlet.
5 . The pendant of claim 1 wherein the defensive substance comprises a lachrymatory agent, a malodorant, a visibly coloured dye, a UV dye, or any combination of the aforementioned.
6 . The pendant of claim wherein the friction-actuated explosive comprises pentaerythritol tetranitrate, lead azide or mercury fulminate.
7 . The pendant of claim 1 wherein the first part is only detachable from the second part under a predetermined force of at least 10 Newtons, or at least 15 Newtons, or at least 20 Newtons, or at least 30 Newtons, or at least 40 Newtons, or at least 50 Newtons.
8 . The pendant of claim 1 comprising an element configured to be broken under a predetermined force to allow the first part to be detached from the second part.
9 . The pendant of claim 1 comprising an insert housed within the second part and connected to the first part, the insert comprising the element that is configured to be broken.
10 . The pendant of claim 8 wherein an insert comprises a partition and a pin that is connected to the first part, wherein the pin is breakable to allow the first part to he detached from the second part.
11 . The pendant of claim 10 wherein a pin is breakable where it is joined to the partition.
12 . The pendant of claim 10 wherein a pin is breakable at a point between the partition and the pin's connection to the first part.
13 . The pendant of claim 1 comprising a necklace attached thereto.Join the waitlist — get patent alerts
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