IP Library Granted Patent US 12,460,411
Granted Patent B2
US 12,460,411 · App. 18/047,367 · Granted Nov 4, 2025

Pre-glazed window wall system

Inventor: Leonard Wilcox (Suwanee, GA)
Assignee: Arconic Technologies LLC
E04B2/967
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Quick Facts
Patent No.
US 12,460,411
App. No.
18/047,367
Granted
Nov 4, 2025
Kind
B2
Abstract

A window wall system includes a sill receptor secured to an upper surface of a first floor slab, the sill receptor providing a base and an upright member extending from the base, a head receptor secured to a bottom surface of a second floor slab vertically offset from the first floor slab, and a glazing unit providing a sill, a head, and one or more panels extending between the sill and the head. A first hook defined by the sill is engageable with the upright member. When the upright member is received by the hook, the glazing unit is pivotable about the upright member toward a vertical orientation. A second hook is defined by the sill and receivable within a groove defined in the sill receptor when the glazing unit reaches the vertical orientation.

Claims (35)

1 . A window wall system, comprising:

a sill receptor secured to an upper surface of a first floor slab, the sill receptor providing a base and an upright member extending from the base;

a head receptor secured to a bottom surface of a second floor slab vertically offset from the first floor slab;

a glazing unit providing a sill, a head, and one or more panels extending between the sill and the head;

a first hook defined by the sill and engageable with the upright member, wherein the first hook extends downward and thereby defines a downwardly-opening channel sized to receive the upright member such that the glazing unit is pivotable about the upright member toward a vertical orientation; and

a second hook defined by the sill and receivable within a groove defined by the upright member in the sill receptor when the glazing unit reaches the vertical orientation, wherein the groove extends substantially parallel to the base.

2 . The window wall system of claim 1 , wherein the upright member extends perpendicular from the base.

3 . The window wall system of claim 1 , wherein receiving the upright member in the channel prevents the glazing unit from migrating toward an exterior or interior environment.

4 . The window wall system of claim 1 , further comprising a spring clip operable to prevent the head from exiting the head receptor once the head is received within the head receptor and the glazing unit reaches the vertical orientation.

5 . The window wall system of claim 4 , wherein the spring clip is mounted to the head.

6 . The window wall system of claim 4 , wherein the spring clip is mounted to the head receptor.

7 . The window wall system of claim 4 , wherein the spring clip provides a spring-loaded biasing member configured to locate a pocket when the glazing unit reaches the vertical orientation, and wherein the spring-loaded biasing member engages an obstruction within the pocket that prevent the head from exiting the head receptor.

8 . A method of installing a glazing unit of a window wall system, comprising:

securing a sill receptor to an upper surface of a first floor slab, the sill receptor providing a base and an upright member extending from the base;

securing a head receptor secured to a bottom surface of a second floor slab vertically offset from the first floor slab;

receiving the glazing unit between the first and second floor slabs, the glazing unit including a sill, a head, and one or more panels extending between the sill and the head;

receiving the upright member within a downwardly-opening channel defined by a first hook defined by the sill and pivoting the glazing unit about the upright member and toward a vertical orientation; and

receiving a second hook defined by the sill within a groove defined by the upright member in the sill receptor when the glazing unit reaches the vertical orientation, wherein the groove extends substantially parallel to the base.

9 . The method of claim 8 , wherein receiving the upright member within a downwardly-opening channel comprises:

receiving the upright member in the channel and thereby preventing the glazing unit from migrating toward an exterior or interior environment.

10 . The method of claim 8 , further comprising preventing uplift of the glazing unit by receiving the second hook within the groove.

11 . The method of claim 8 , further comprising securing the glazing unit to the sill receptor without mechanical fasteners.

12 . The method of claim 8 , wherein pivoting the glazing unit toward the vertical orientation further comprises:

locating a spring-loaded biasing member of a spring clip in a pocket once when the glazing unit reaches the vertical orientation; and

engaging the spring-loaded biasing member against an obstruction within the pocket and thereby preventing the head from exiting the head receptor.

13 . A window wall system, comprising:

a sill receptor secured to an upper surface of a first floor slab, the sill receptor providing a base and an upright member extending from the base;

a glazing unit providing a sill;

a first hook defined by the sill, wherein the first hook extends downward and thereby defines a downwardly-opening channel sized to receive the upright member; and

a second hook defined by the sill and receivable within a groove defined by the upright member in the sill receptor, wherein the groove extends substantially parallel to the base.

14 . The window wall system of claim 13 , wherein the glazing unit further provides a head, and wherein the window wall system further comprises:

a head receptor secured to a bottom surface of a second floor slab vertically offset from the first floor slab; and

a spring clip operable to prevent the head from exiting the head receptor once the head is received within the head receptor.

15 . The window wall system of claim 14 , wherein the spring clip is mounted to the head.

16 . The window wall system of claim 14 , wherein the spring clip is mounted to the head receptor.

Assignments (8)
NOTICE OF GRANT OF SECURITY INTEREST (ABL) IN INTELLECTUAL PROPERTY Recorded Oct 2, 2025
From: KAWNEER COMPANY, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 072999/0713 →
NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY (FIRST LIEN) Recorded Oct 2, 2025
From: KAWNEER COMPANY, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 072998/0416 →
NOTICE OF RELEASE OF SECURITY INTEREST IN CERTAIN PATENTS Recorded Oct 1, 2025
From: JPMORGAN CHASE BANK, N.A., AS AGENT
To: ARCONIC TECHNOLOGIES LLC
Reel/Frame 072989/0222 →
NOTICE OF RELEASE OF SECURITY INTEREST IN CERTAIN PATENTS Recorded Oct 1, 2025
From: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, AS AGENT
To: ARCONIC TECHNOLOGIES LLC
Reel/Frame 072995/0849 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 30, 2025
From: ARCONIC TECHNOLOGIES LLC
To: KAWNEER COMPANY, INC.
Reel/Frame 072422/0707 →
NOTICE OF GRANT OF SECURITY INTEREST (ABL) IN INTELLECTUAL PROPERTY Recorded Aug 18, 2023
From: ARCONIC TECHNOLOGIES LLC
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 064641/0798 →
NOTICE OF GRANT OF SECURITY INTEREST IN INTELLECTUAL PROPERTY (FIRST LIEN) Recorded Aug 18, 2023
From: ARCONIC TECHNOLOGIES LLC
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION
Reel/Frame 064641/0781 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 18, 2022
From: WILCOX, LEONARD
To: ARCONIC TECHNOLOGIES LLC.
Reel/Frame 061454/0105 →