# US 4,391,113 A · One-hand key ring

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

- Number: US 4,391,113 A
- Document ID: US4391113A
- Status: Granted
- Kind: A
- Application number: 06/289,507
- Filed: 1981-08-03
- Granted: 1983-07-05
- Earliest claimed: 1981-08-03
- Inventors: Douglas M. Jorgens
- Web page: https://patentgrep.com/patent/US4391113A

## CPC

- A44B 15/00: Key-rings
- Y10T 70/8757: Releasable catches
- A44B: BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE (fastenings specially adapted for footwear A43C)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

This invention relates to a novel key ring holder which can be used with only one hand to remove or replace a key ring full of keys. The invention comprises the key ring holder adapted at one end to fit around a belt loop and at the other end adapted to hold a set of keys on a ring in which there is a button actuated spring which is movable by one finger to open and close a U-shaped slot while other fingers of the same hand remove or replace the key ring on the U-shaped slot.

## Claims

### Claim 1

A key ring device adapted to be attached at one end to a piece of clothing and to hold a ring of keys at the other comprising a tubular outer shell, a slot disposed within said outer portion, a U-shaped inner body, a spring disposed within said U-shaped inner body, a button fixedly attached to said U-shaped inner body which button passes through the slot in the outer shell, said inner body comprising a U-shaped key ring holder portion, means to attach the key ring device to a piece of clothing.

### Claim 2 (depends on 1)

The device of claim 1 comprising a retaining block fixedly attached within said outer shell for holding the spring in position.

### Claim 3 (depends on 1)

The device of claim 1 in which said means to attach the key ring device is a split ring adapted to fit over a belt loop.

### Claim 4 (depends on 1)

The device of claim 1 in which said means to attach the key ring device is a friction clip.

### Claim 5 (depends on 2)

The device of claim 2 comprising a reinforcing block disposed in said outer shell abutting said U-shaped body.