# US 12,006,706 B2 · Device for correctly laying floor tiles

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- Number: US 12,006,706 B2
- Document ID: US12006706B2
- Status: Granted
- Kind: B2
- Application number: 17/436,607
- Filed: 2020-03-09
- Published: 2022-05-19
- Granted: 2024-06-11
- Earliest claimed: 2019-03-19
- Applicants: Brunoplast SAS Di Eleuteri Lorenzo & C.
- Inventors: Bruno Eleuteri
- Web page: https://patentgrep.com/patent/US12006706B2

## CPC

- E04F 21/1877: {Leveling devices}
- E04F 15/02022: {with means for aligning the outer surfaces of the flooring elements (E04F15/02038 takes precedence)}
- E04F 21/0092: {Separate provisional spacers used between adjacent floor or wall tiles (E04F13/0889, E04F15/02005 takes precedence)}
- E04F: FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS (windows, doors E06B)

## Abstract

A knob (1), for correctly laying tiles, comprises a first jaw (10) and a second jaw (20) which are connected to each other in such a way that said knob (1) can adopt a clamped configuration, in which the first and the second jaw (10,20) are in contact with each other, and a wide apart configuration, in which the first and the second jaw (10,20) are not in contact with each other.

## Claims

### Claim 1

Knob (1), for correctly laying tiles, comprising
a first jaw (10) and a second jaw (20), each jaw (10,20) delimiting a half-seat (30) and a threaded half-duct (40); wherein the first and the second jaw (10,20) are connected to each other in such a way that said knob (1) can adopt a clamped configuration, in which the first and the second jaw (10,20) are in contact with each other and the two half-seats (30) and the two half-ducts (40) respectively form a cylindrical seat (31) and a threaded duct (41), which is intended to house a threaded rod (S) of a strap (B); and a wide apart configuration, in which the first and the second jaw (10,20) are not in contact with each other;
said knob (1) comprising closing means (5) for keeping the knob (1) in the clamped configuration and characterising in that said closing means (5) are of the latch type wherein one of said two jaws (10,20) comprises an elastic latch (7) and the other jaw (10,20) comprises a slot (8) suitable for housing the latch (7) with an elastic snap-in action.

### Claim 2 (depends on 1)

Knob (1) according to claim 1, wherein each jaw (10,20) comprises a base semi-annular flange (60), projecting from an opposite side of the jaw (10,20) relative to the half-duct (40) and the half-seat (30) of the jaw; said base semi-annular flanges (60), of the jaws (10,20) being suitable for being positioned on said two adjacent tiles and for forming an annular flange (61) when the knob (1) is in the clamped configuration.

### Claim 3 (depends on 2)

Knob (1) according to claim 2, wherein each semi-annular flange (60) has a lower surface which is inclined, so that it is sloping outwards.

### Claim 4 (depends on 1)

Knob (1) according to claim 1, wherein said first and second jaw (10,20) are hinged to each other.

### Claim 5 (depends on 4)

Knob (1) according to claim 4, wherein the first jaw (10) comprises a pin (11) and the second jaw (20) comprises at least one open sleeve (21), housing said pin (11).

### Claim 6 (depends on 5)

Knob (1) according to claim 5, wherein said sleeve (21) of the second jaw (20) comprises a radial opening (22) directed towards an opposite side of the second jaw (20) relative to the half-duct (40) and to the half-seat (30) of the second jaw (20).

### Claim 7 (depends on 1)

Knob (1) according to claim 1, wherein the threaded duct (41) formed by the two half-ducts (40) has a thread with rounded edges.

### Claim 8 (depends on 1)

Device (100), for correctly laying tiles, comprising a strap (B) which includes a base plate (P), lying in a horizontal plane, which is intended to be positioned on a sub-floor or on a wall, below two or more adjacent tiles, and a vertical threaded rod (S), which is connected directly, or by means of a vertical thin plate (V), to the base plate (P); and a knob (1) according to claim 1.