# US 4,392,283 A · Grommet clip

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- Number: US 4,392,283 A
- Document ID: US4392283A
- Status: Granted
- Kind: A
- Application number: 06/202,641
- Filed: 1980-10-31
- Granted: 1983-07-12
- Earliest claimed: 1980-10-31
- Assignees: Automation Industries, Inc.
- Inventors: David R. Timmons
- Web page: https://patentgrep.com/patent/US4392283A

## CPC

- F24F 13/0218: {Flexible soft ducts, e.g. ducts made of permeable textiles}
- F16B 19/02: Bolts or sleeves for positioning of machine parts, e.g. notched taper pins, fitting pins, sleeves, eccentric positioning rings
- F16L 3/14: Hangers in the form of bands or chains
- F24F 13/0254: {characterised by their mounting means, e.g. supports}
- Y10T 24/44752: Integral locking-means
- F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02)
- F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D)
- 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 grommet clip, particularly useful for suspending air conditioning ducts, formed of a flat body having opposite portions snapped together along a fold line with means which penetrate a web on the duct and which define an eyelet to receive hangers for supporting the duct.

## Claims

### Claim 1

In combination with a penetratable web, a grommet clip for penetrating said web and providing hanger means therefor comprising:
(a) a flat body having first and second portions adapted to be brought together along a single fold line thinner than the remainder of the body in one predetermined overlapping position,
(b) a connecting hole in the first body portion remote from the fold line,
(c) a pointed snap-in pin projecting from the second body portion remote from the fold line for forcibly penetrating the web and the connecting hole when the body portions are in said overlapping positions to lock the body portions together about the penetrated web,
(d) finger guard extension means integral with said first body portion and projecting outwardly from that side of the flat body opposite the projecting pin for preventing finger contact with the pointed pin as the body portions are locked together about the penetrated web, and
(e) first and second eyelet holes located in the respective body portions which are aligned to receive suspension means when the body portions are in said interlocked overlapped position.

### Claim 2 (depends on 1)

A grommet clip according to claim 1 wherein the body is of plastic and is rectangular, and wherein a pair of said connecting hole and projecting pin is provided, each pin having an enlarged midsection which fits forcibly within the associated connecting hole.