IP Library Granted Patent US 12,559,939
Granted Patent B2
US 12,559,939 · App. 19/217,276 · Granted Feb 24, 2026

Clamp assembly for a formwork system

Inventor: Kenneth M. Chevis (Houston, TX)
Assignee: Apache Industrial Services, Inc.
E04B2/8629E04G11/00E04G11/062E04G11/085E04G11/087E04G11/54E04G11/56E04G13/02E04G17/00E04G17/001E04G17/002E04G17/042E04G17/0644E04G17/0652E04G17/14E04G17/16E04B2/14E04G2009/025E04G2009/028E04G2017/008E04G21/3276
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Quick Facts
Patent No.
US 12,559,939
App. No.
19/217,276
Granted
Feb 24, 2026
Kind
B2
Abstract

Various implementations described herein are directed to a formwork system. In one implementation. the formwork system includes aluminum extrusions and aluminum castings. The aluminum castings and the aluminum extrusions can be assembled by being pressed and riveted together.

Claims (17)

1 . A clamp assembly for a formwork system, comprising:

a clamp, comprising:

a first member having a first base, a first planar portion which extends outwardly from the first base along a first axis, and a first outer portion which extends from the first planar portion;

a second member having a second base, a second planar portion which extends outwardly from the second base parallel to the first axis and a second outer portion which extends from the second planar portion;

a release mechanism configured to transition the clamp assembly between a first position and a second position;

a connector clip attached to both the first base and the second base,

a pipe brace having an attachment mechanism,

wherein the connector clip is configured to releasable couple to the attachment mechanism;

wherein the clamp assembly, when in the first position, the first planar portion and the second planar portion are urged towards each other, along a second axis,

wherein the clamp assembly, when in the second position, where the first planar portion and the second planar portion are urged away from each other, along the second axis, and

wherein the first axis and the second axis are perpendicular to each other.

2 . The clamp assembly of claim 1 , the clamp being configured to provide for the releasable coupling of a first flange of a first formwork panel and a second flange of a second formwork panel.

3 . The clamp assembly of claim 2 , the pipe brace further comprising a turnbuckle mechanism.

4 . The clamp assembly of claim 3 , the pipe brace being configured to provide support for the first formwork panel and the second formwork panel when the first formwork panel and the second formwork panel are coupled by the clamp.

5 . The clamp assembly of claim 3 , the pipe brace being configured to provide support for at least one scaffold coupled to the formwork system.

6 . The clamp assembly of claim 2 , the first formwork panel having a first height of 3 feet, 6 feet, or 9 feet.

7 . The clamp assembly of claim 2 , the second formwork panel having a second height of 3 feet, 6 feet, or 9 feet.

Assignments (2)
CORRECTIVE ASSIGNMENT TO CORRECT THE ERROR IN ASSIGNEE NAME FROM APACHE INDUSTRIAL HOLDINGS, INC. TO APACHE INDUSTRIAL SERVICES, INC. PREVIOUSLY RECORDED ON REEL 72635 FRAME 610. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Oct 31, 2025
From: CHEVIS, KENNETH M.
To: APACHE INDUSTRIAL SERVICES, INC.
Reel/Frame 073431/0137 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 22, 2025
From: CHEVIS, KENNETH M.
To: APACHE INDUSTRIAL HOLDINGS, INC.
Reel/Frame 072635/0610 →
Continuity (7)
Continuation 19073775 · Mar 7, 2025
Continuation 17988693 · Nov 16, 2022
Continuation 16680368 · Nov 11, 2019
Continuation 15630923 · Jun 22, 2017
Provisional Application 62471173 · Mar 14, 2017
Provisional Application 62354325 · Jun 24, 2016
Related Publication 20250283329A1 · Sep 11, 2025
References Cited (4)
US 4826113A · Winters · 1989 [cited by examiner]
US 5863020A · Olson · 1999 [cited by examiner]
US 12291864B2 · Chevis · 2025 [cited by examiner]
GB 838828A · 1960 [cited by examiner]