# US 7,610,937 B1 · Self-sealing regulator fill port protective/dust cover

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- Number: US 7,610,937 B1
- Document ID: US7610937B1
- Status: Granted
- Kind: B1
- Application number: 12/146,735
- Filed: 2008-06-26
- Granted: 2009-11-03
- Earliest claimed: 2008-06-26
- Assignees: Pressure Specialist, Inc.
- Inventors: Ray Trimble; Jeff Schreiber
- Web page: https://patentgrep.com/patent/US7610937B1

## CPC

- F16L 55/115: Caps {(F16L55/1286 takes precedence)}
- F16K 27/08: Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16K: VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING {(devices for emptying and evacuating the excess liquid in valves or conduits F16L55/07)}

## Abstract

A self-sealing protective/dust cover for application to a magnetically attractable filling port includes a sleeve defined by a closed wall and closed at one end by an end face. The closed wall defines an open central region and the end face is contiguous with the closed wall. A magnet provide magnetic attraction between the protective/dust cover and the filling port to maintain the protective/dust cover on the filling port.

## Claims

### Claim 1

A self-sealing protective/dust cover for application to a magnetically attractable filling port, comprising:
a sleeve defined by a closed wall and closed at one end by an end face, the closed wall defining an open central region, the end face contiguous with the closed wall; and
magnet means for magnetically attracting the protective/dust cover to the magnetically attractable filling port,
wherein when the protective/dust cover is applied to the filling port, the magnetic attraction between the protective/dust cover and the filling port maintains the protective/dust cover on the filling port, and wherein the magnet means is a flat magnet disposed in the open central region adjacent and adhered to the end face, sufficient to maintain the protective/dust cover attracted to the fill port.

### Claim 2 (depends on 1)

The protective/dust cover in accordance with claim 1 wherein the sleeve has a circular cross-section.

### Claim 3 (depends on 1)

The protective/dust cover in accordance with claim 1 wherein the magnet is a metal magnet.

### Claim 4 (depends on 1)

The protective/dust cover in accordance with claim 1 wherein the magnet is a ceramic magnet.

### Claim 5 (depends on 1)

The protective/dust cover in accordance with claim 1 wherein the magnet is adhered to the end face by an adhesive.

### Claim 6 (depends on 1)

The protective/dust cover in accordance with claim 1 wherein the sleeve is formed as a unitary element.

### Claim 7 (depends on 1)

The protective/dust cover in accordance with claim 1 wherein the magnet is substantially coextensive with the end face.

### Claim 8 (depends on 1)

The protective/dust cover in accordance with claim 1 wherein the protective/dust cover is magnetic.