# US 5,701,714 A · Wrought iron grating assembly

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- Number: US 5,701,714 A
- Document ID: US5701714A
- Status: Granted
- Kind: A
- Application number: 08/636,945
- Filed: 1996-04-24
- Granted: 1997-12-30
- Earliest claimed: 1995-04-27
- Assignees: bima Industrie-Service GmbH
- Inventors: Alexander Dietrichs
- Web page: https://patentgrep.com/patent/US5701714A

## CPC

- E04F 11/1842: {Balusters; Grille-type elements}
- E06B 9/01: Grilles fixed to walls, doors, or windows; Grilles moving with doors or windows; Walls formed as grilles, e.g. claustra {(emergency release of window grilles E05B65/1033; security bars for wings E05C19/003)}
- Y10T 403/345: Coplanar
- Y10T 403/443: All encompassed
- E04F: FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS (windows, doors E06B)
- E06B: FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES (shades or blinds for greenhouses A01G9/22; curtains A47H; lids for car boots or bonnets B62D25/10; skylights E04B7/18; sunshades, awnings E04F10/00)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A grille-type guard system, in particular a wrought iron grating assembly, includes a plurality of longitudinal bars in spaced-apart disposition, and a plurality of crossbars which are connected to the longitudinal bars at crossing points. The crossbars are formed at each crossing point with an arched section for receiving the longitudinal bars at least partially in a form-fitting manner, with the securement between the crossbars and the longitudinal bars being effected in each crossing point in non-detachable manner by a screw fastener that is received in aligned bores of the longitudinal bar and crossbar.

## Claims

### Claim 1

A wrought iron grating assembly, comprising:
a plurality of longitudinal bars in spaced-apart relationship;
a plurality of crossbars connection to the longitudinal bars, each one of the crossbars being formed at a crossing point with the longitudinal bars with an arched section receiving the longitudinal bars at least partially in a form-fitting manner;
threaded fastening means attaching the crossbars to the longitudinal bars at each crossing point; and
means for non-detachably securing the fastening means in place.

### Claim 2 (depends on 1)

The grating assembly of claim 1 wherein each crossbar is formed with a threaded blind hole in the area of the crossing points and each longitudinal bar exhibits a bore in alignment with the threaded blind hole, said threaded fastening means including a machine screw received in the aligned blind hole and bore of the longitudinal bar and crossbar.

### Claim 3 (depends on 2)

The grating assembly of claim 2 wherein the machine screw is an Allen screw exhibiting a hexagonal socket.

### Claim 4 (depends on 2)

The grating assembly of claim 2 wherein the machine screw has a head, said longitudinal bar being formed with a counterbore for receiving the head of the machine screw.

### Claim 5 (depends on 3)

The grating assembly of claim 3 wherein said securing means includes a steel ball forced into the hexagonal socket of the Allen screw.

### Claim 6 (depends on 1)

The grating assembly of claim 1 wherein the longitudinal bars and the crossbars are formed at each crossing point with aligned bores, said threaded fastening means including a screw received in the aligned bores.

### Claim 7

A grille-type guard system, comprising:
first elongate members extending in spaced-apart relationship;
second elongate members extending in spaced-apart relationship and connected to the first elongate members at crossing points, said first elongate members being formed at each crossing point with an arched section for receiving the second elongate members at least partially in a form-fitting manner;
threaded fastening means attaching the first and second elongate members to one another in each crossing point; and
means for non-detachably securing the fastening means in place.

### Claim 8 (depends on 7)

The guard system of claim 7 wherein the first and second elongate members are formed at each crossing point with aligned bores, said threaded fastening means including a screw received in the aligned bores.

### Claim 9 (depends on 7)

The guard system of claim 7 wherein the screw is an Allen screw.

### Claim 10 (depends on 8)

The guard system of claim 8 wherein the screw has a head, one of the first and second elongate members being formed with a counterbore for receiving the head of the screw.

### Claim 11 (depends on 9)

The guard system of claim 9 wherein said fastening means includes a steel ball forced into the hexagonal socket of the Allen screw.