# US 11,076,590 B2 · Shark repellent

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 11,076,590 B2
- Document ID: US11076590B2
- Status: Granted
- Kind: B2
- Application number: 16/944,990
- Filed: 2020-07-31
- Published: 2021-02-04
- Granted: 2021-08-03
- Earliest claimed: 2019-08-02
- Applicants: Brian Chase Watson
- Inventors: Brian Chase Watson
- Web page: https://patentgrep.com/patent/US11076590B2

## CPC

- A01M 29/24: using electric or magnetic effects, e.g. electric shocks, magnetic fields or microwaves
- A01K 81/04: Fish-spears
- A41D 13/0125: {with buoyancy aids}
- B63C 9/11: covering the torso, e.g. harnesses {(B63C9/081 takes precedence)}
- F41B 7/043: {Accessories therefor}
- B63C 2009/0088: {characterised by making use of shark deterrents, e.g. electric, acoustic, mechanical or chemical means for deterring sharks}
- A01M: CATCHING, TRAPPING OR SCARING OF ANIMALS (appliances for catching swarms or drone-catching A01K57/00; fishing A01K69/00 - {A01K99/00}; biocides, pest repellants or attractants A01N); APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01K: ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A41D: OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- B63C: LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS (floating nets, floating slipways, or the like for recovering aircraft from the water B63B35/52)
- F41B: WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR (projectiles for fishing, e.g. fish-spears, A01K81/00; sports implements for throwing A63B65/00, e.g. boomerangs A63B65/08; stationary apparatus for projecting sports balls, e.g. tennis balls, A63B69/40; throwing or slinging toys A63H33/18; knives, axes B26B; projectiles or missiles other than those incorporating springs as projecting means F42B6/00)

## Abstract

Some embodiments may be of spearfishing apparatus fitted with at least one magnet configured to repel sharks away from the spearfishing apparatus. The spearfishing apparatus may be one or more of: a spearfishing shaft, a spearfishing tip, and/or a spearfishing gun. Some embodiments may be of personal floatation devices (PFDs) fitted with at least one magnet configured to repel sharks away from the PFDs. Some PFDs may be fitted with a tethered drop-down magnetic apparatus to protect lower extremities of a wearer of such PFDs. Such magnets may be electromagnets powered by batteries in some embodiments.

## Claims

### Claim 1

A personal floatation device fitted with at least one magnet that is configured to repel sharks away from the personal floatation device; wherein the personal floatation device is configured to minimize unintentional submerging of a face of a wearer of the personal floatation device within water wherein the personal floatation device comprises at least one panel and at least one drop-down magnet apparatus; wherein the at least one drop-down magnet apparatus exists in two operational configurations, a deployed configuration and a non-deployed configuration, respectively; wherein the at least one drop-down magnet apparatus comprises:
at least one magnet holder that is in physical communication with the at least one magnet;
at least one tether that is in physical communication with both the at least one magnet holder and the at least one panel of the personal floatation device; wherein the at least one tether is an elongate flexible member;
wherein in the deployed configuration, the at least one magnet holder is configured to sink below the at least one panel when the personal floatation device is in the water;
wherein in the non-deployed configuration, the at least one magnet holder is removably attached to the at least one panel via attachment means.

### Claim 2 (depends on 1)

The personal floatation device according to claim 1, wherein the personal floatation device comprises:
at least one front panel, wherein the at least one front panel comprises a first floatation means configured to provide buoyancy to the wearer; wherein the at least one front panel is configured to cover at least a portion of a front of a torso of the wearer when the wearer is properly wearing the personal floatation device; and
at least one rear panel, wherein the at least the one rear panel comprises a second floatation means configured to provide buoyancy to the wearer; wherein the at least one front panel and the at least one rear panel are in physical communication with each other via at least one intermediary linkage; wherein the at least the one rear panel is configured to cover at least a portion of a back of the torso of the wearer when the wearer is properly wearing the personal floatation device;
wherein the at least one panel is selected from the at least one front panel, the at least one rear panel, or another panel of the personal floatation device.

### Claim 3 (depends on 2)

The personal floatation device according to claim 2, wherein the personal floatation device comprises at least one second magnet that is located at one or more of:
on the at least one front panel;
attached to the at least one front panel;
partially embedded in the at least one front panel;
on an exterior covering of the at least one front panel;
on an interior covering of the at least one front panel;
on the at least one rear panel;
attached to the at least one rear panel;
partially embedded in the at least one rear panel;
on an exterior covering of the at least one rear panel;
on an interior covering of the at least one rear panel;
in physical communication with the first floatation means; or
in physical communication with the second floatation means.

### Claim 4 (depends on 2)

The personal floatation device according to claim 2, wherein the at least one intermediary linkage is at least one shoulder region; wherein the at least one shoulder region is configured to cover over a shoulder region of the wearer when the wearer is properly wearing the personal floatation device.

### Claim 5 (depends on 4)

The personal floatation device according to claim 4, wherein the personal floatation device comprises at least one second magnet that is attached to the at least one shoulder region.

### Claim 6 (depends on 1)

The personal floatation device according to claim 1, wherein the at least one panel comprises:
at least two panels, wherein each of the at least two panels comprises an exterior covering and an interior covering; wherein the exterior covering and the interior covering of each of the at least two panels are mostly disposed opposite from each other; wherein each of the at least two panels comprises at least one floatation means, wherein the at least one floatation means is disposed between the exterior covering and the interior covering of each of the at least two panels;
wherein the exterior covering mostly faces away from a torso of the wearer when the wearer is properly wearing the personal floatation device; and
wherein the interior covering mostly faces towards the torso of the wearer when the wearer is properly wearing the personal floatation device.

### Claim 7 (depends on 6)

The personal floatation device according to claim 6, wherein the personal floatation device comprises at least one second magnet that is located at one or more of:
on the exterior covering of at least one of the at least two panels;
attached to the exterior covering of at least one of the at least two panels;
at least partially embedded to the exterior covering of at least one of the at least two panels;
on the interior covering of at least one of the at least two panels;
attached to the interior covering of at least one of the at least two panels;
at least partially embedded to the interior covering of at least one of the at least two panels;
between the exterior covering and the interior covering of at least one of the at least two panels; or
in physical communication with the at least one floatation means of at least one of the at least two panels.

### Claim 8 (depends on 1)

The personal floatation device according to claim 1, wherein the personal floatation device comprises at least one compartment located on an exterior covering or on an interior covering of the personal floatation device; wherein the at least one compartment comprises the at least one magnet.

### Claim 9 (depends on 1)

The personal floatation device according to claim 1, wherein the at least one magnet is at least one electromagnet; wherein the personal floatation device comprises at least one battery configured to electrically power the at least one electromagnet; wherein the at least one electromagnet is operatively linked with the at least one battery.