# US 5,341,759 A · Sea bird deterrent for boats and navigation aids

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- Number: US 5,341,759 A
- Document ID: US5341759A
- Status: Granted
- Kind: A
- Application number: 07/636,768
- Filed: 1991-01-02
- Granted: 1994-08-30
- Earliest claimed: 1991-01-02
- Inventors: Roger W. Hood
- Web page: https://patentgrep.com/patent/US5341759A

## CPC

- A01M 29/32: specially adapted for birds, e.g. spikes
- B63B 15/00: Superstructures {, deckhouses, wheelhouses or the like}; Arrangements or adaptations of masts {or spars, e.g. bowsprits}(loading or unloading equipment B63B27/00; masts and staying in general E04H; sails, running rigging B63H; {mounting ladders or the like on masts B63B29/205})
- B63B 49/00: Arrangements of nautical instruments or navigational aids (nautical measuring instruments G01C; radio navigation, analogous arrangements using other waves G01S)
- 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
- B63B: SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING (arrangements of vessel ventilation, heating, cooling, or air-conditioning B63J2/00; floating substructures as supports of dredgers or soil-shifting machines E02F9/06)

## Abstract

A boat or navigation aid including a top, at least two posts extending upward from the top, and at least one line between the posts to prevent sea birds from landing on the top.

## Claims

### Claim 1

A boat comprising
a boat shell,
a deck on said shell providing surfaces to support people,
a top at an elevation above said deck,
at least two posts extending upward from said top, and
at least one line between said posts at an elevation above said top to prevent sea birds from landing on said top, said elevation being greater than about 5" and less than about 20",
wherein there are four said posts generally along the perimeter of said top, and said lines go generally along the perimeter of said top between posts, said lines along said perimeter defining a region having more than about 3' between said lines, said region having a generally square area, said lines being at two elevations,
wherein there is an additional line bisecting the region within the perimeter such that there is a space of no more than about 3' between lines.

### Claim 2 (depends on 1)

The boat of claim 1 wherein both said elevations are greater than about 5" and less than about 20".

### Claim 3 (depends on 2)

The boat of claim 2 wherein one line is at a height of between 5" and 10", and another line is at a height of between 15" and 20".

### Claim 4 (depends on 1)

The boat of claim 1 wherein an additional line is provided bisecting the region within the perimeter.

### Claim 5 (depends on 1)

The boat of claim 1 wherein said top is a hard top, and said posts are anchored in holes through the hard top.

### Claim 6 (depends on 1)

The boat of claim 1 wherein said top is a hard top having handrails secured thereto, and said posts are anchored in holes through said handrails.

### Claim 7 (depends on 1)

The boat of claim 1 wherein said top is a soft top that is supported by a frame supported on the shell, and said posts are connected to the frame.

### Claim 8 (depends on 1)

The boat of claim 1 wherein said line is marine grade synthetic plastic line.

### Claim 9 (depends on 1)

The boat of claim 1 wherein said posts are aluminum rods less than 1" in diameter.

### Claim 10 (depends on 1)

The boat of claim 1 wherein said posts are made of materials such as fiberglass.

### Claim 11

A navigation aid comprising
a support structure including a frame,
a top carried by said frame,
at least two posts extending upward from said top, and
at least one line between said posts to prevent sea birds from landing on said top, at least one line being at an elevation above said top greater than about 5" and less than about 20",
wherein said top is connected between the top edges of inclined solar panels carried by said frame, and
wherein said top is triangular, and there are three said solar panels and three said posts.