# US 4,379,359 A · Positive lock hose clamp

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

- Number: US 4,379,359 A
- Document ID: US4379359A
- Status: Granted
- Kind: A
- Application number: 06/230,454
- Filed: 1981-02-02
- Granted: 1983-04-12
- Earliest claimed: 1981-02-02
- Inventors: Donald L. Young
- Web page: https://patentgrep.com/patent/US4379359A

## CPC

- F16L 33/02: Hose-clips
- Y10T 24/1424: Lever
- Y10T 24/2147: Strap tightener
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A toggle clamp assembly for a flexible hose includes a flexible strap having a friction grip buckle for securing the ends of the strap into a loop around a hose and a toggle lever having one end attached to the strap and adapted to pivot from a non-tensioning position to a tensioning position for applying tension to the strap for clamping it about a flexible hose. The toggle lever includes a slot for receiving a twist fastener for fastening or holding the lever in the tensioning position.

## Claims

### Claim 1

A hose clamping strap for clamping a flexible hose to a cylindrical air supply conduit, comprising:
an elongated flexible woven fabric strap having a first end and a second end,
a friction buckle secured to said first end of said strap and adapted to receive said second end for establishing a loop of a selective size,
a toggle lever having a fixed end fixed to said strap at spaced points along said strap adjacent said first end, and a curved free end normally extending along said strap in a direction toward and substantially to said buckle and pivotal to extend in a second direction for removing slack from said strap and clamping said strap against a flexible hose, and
fastening means comprising a slot in the free end of said toggle lever, and a releasable twist fastener secured to said strap for extending through said slot and rotating to a securing position for releasably securing said free end of said toggle lever to said strap in a position extending in said second direction opposite said first direction.

### Claim 2 (depends on 1)

The clamping strap of claim 1 wherein said fixed end of said toggle lever is substantially the same length as said free end.

### Claim 3 (depends on 1)

The clamping strap of claim 1 in combination with an air blower having a cylindrical outlet conduit, and a flexible air supply hose releasably secured to said conduit by said clamping strap.