IP Library Granted Patent US 9,441,405
Granted Patent B2
US 9,441,405 · App. 12/658,225 · Granted Sep 13, 2016

Sliding door assembly

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Quick Facts
Patent No.
US 9,441,405
App. No.
12/658,225
Granted
Sep 13, 2016
Kind
B2
Abstract

The sliding door assembly has a non-metallic frame formed of extrusions of solid cross-section and a pair of non-metallic sashes slidably disposed in the frame to move laterally between a closed position and an open position relative to frame. The floor of the sill extrusion is sloped rearwardly and longitudinally downwardly toward a notch to direct water thereto for draining out of the frame. The frame can be dropped into a commercial refrigeration cabinet and each sash is removably mounted in the frame.

Claims (29)

1. A sliding door assembly comprising

a non-metallic frame including a plurality of extrusions integrally secured together to form a one-piece rectangular frame with a first extrusion of said plurality of extrusions forming a sill, a second extrusion of said plurality of extrusions forming a left jamb, a third extrusion of said plurality of extrusions forming a right jamb and a fourth extrusion of said plurality of extrusions forming a header, each said extrusion having a pair of outer walls of solid cross-section and a floor of solid cross-section defining a channel-shaped cross-section;

a pair of non-metallic sashes slidably disposed in said frame to move laterally between a closed position and an open position relative to said frame.

2. A sliding door assembly as set forth in claim 1 wherein one of said walls of said first extrusion has a notch at one longitudinal end thereof and said floor is sloped downwardly toward said notch to direct water thereto for draining out of said first extrusion.

3. A sliding door assembly as set forth in claim 2 wherein said first extrusion further has an outwardly extending wall extending from said floor in alignment with one of said outer walls to abut against a cabinet frame.

4. A sliding door assembly as set forth in claim 3 wherein said first extrusion further has a pair of upstanding parallel rails and an upstanding rib between said rails integrated with said floor.

5. A sliding door assembly as set forth in claim 4 wherein said floor of said first extrusion is sloped rearwardly relative to said frame to direct water to said notch and said first extrusion further has a plurality of reinforcing ribs of variable length extending from said floor in alignment with said rails and said rib and on an opposite side of said floor from said rails.

6. A sliding door assembly as set forth in claim 1 wherein said first extrusion further has a pair of upstanding parallel rails and an upstanding rib between said rails integrated with said floor and extending in spaced relation to each of said second extrusion and said third extrusion to provide a notched out area.

7. A sliding door assembly as set forth in claim 6 wherein each said sash has a pair of roller assemblies removably mounted therein, each said roller assembly having a roller mounted on a respective one of said rails of said first extrusion.

8. A sliding door assembly as set forth in claim 6 wherein each said sash has a pair of bearing blocks removably mounted therein, each said bearing block being slidably mounted on a respective one of said rails of said first extrusion.

9. A sliding door assembly as set forth in claim 1 wherein said fourth extrusion has an outwardly extending wall extending from said floor in alignment with one of said outer walls to abut against a cabinet frame and said floor thereof is sloped rearwardly relative to said frame.

10. A sliding door assembly as set forth in claim 9 wherein said fourth extrusion has an upstanding rib integrated with said floor between said pair of outer walls thereof and a pair of C-shaped rails integrated with said floor thereof and on opposite sides of said rib thereof, each said C-shaped rail being longitudinally offset from the other of said C-shaped rails.

11. A sliding door assembly as set forth in claim 1 wherein each sash carries an extruded plastic panel sash interlock to intermesh with said interlock of the other sash to reduce airflow between said sashes when in a closed position in said frame.

12. A sliding door assembly as set forth in claim 11 wherein each interlock is fitted onto a respective sash and has an L-shaped fin extending in an overlapping relation with said L-shaped fin of the other sash in said closed position.

13. A sliding door assembly as set forth in claim 1 further comprising a sash cover fitted onto a side of one of said sashes and a resilient seal mounted in said sash cover and facing the other of said sashes.

14. A sliding door assembly as set forth in claim 1 wherein each sash carries an elongated resilient stop on one side for abutting a respective one of said second extrusion and said third extrusion to cushion the closure of said respective sash thereagainst.

15. A sliding door assembly as set forth in claim 14 wherein each stop is a rectangular block body having a pair of parallel flanges defining a U-shaped recess along the length thereof and a pair of legs, each said leg extending outwardly and laterally of a respective flange for splaying laterally outwardly when closed against a respective one of said second extrusion and said third extrusion.

16. A sliding door assembly as set forth in claim 1 wherein each said sash defines an L-shaped recess for receiving an insulated glass unit and which further includes a glazing bead for retaining an insulated glass unit in said recess.

17. A sliding door assembly comprising

a non-metallic frame including a plurality of extrusions integrally secured together to form a one-piece rectangular frame with a first extrusion of said plurality of extrusions forming a sill, a second extrusion of said plurality of extrusions forming a left jamb, a third extrusion of said plurality of extrusions forming a right jamb and a fourth extrusion of said plurality of extrusions forming a header, each said extrusion having a pair of outer walls of solid cross-section and a floor of solid cross-section defining a channel-shaped cross-section;

at least one non-metallic sash removably mounted in said frame between said first extrusion and said fourth extrusion to move laterally on said first extrusion between a closed position and an open position relative to a respective one of said second extrusion and said third extrusion, said sash defining an L-shaped recess for receiving an insulated glass unit; and

a glazing bead for retaining the insulated glass unit in said recess of said sash.

18. A sliding door assembly as set forth in claim 17 wherein said frame is made of polyvinylchloride (PVC) and said sash is made of polyvinylchloride (PVC).

19. A sliding door assembly comprising

a non-metallic frame including a plurality of extrusions integrally secured together to form a one-piece rectangular frame with a first extrusion of said plurality of extrusions forming a sill, a second extrusion of said plurality of extrusions forming a left jamb, a third extrusion of said plurality of extrusions forming a right jamb and a fourth extrusion of said plurality of extrusions forming a header,

each said extrusion having a pair of inwardly directed outer walls of solid cross-section and a floor of solid cross-section defining a channel-shaped cross-section,

each said extrusion having an outwardly extending wall extending from said floor thereof in alignment with one of said outer walls thereof to abut against a cabinet frame and a plurality of reinforcing ribs of variable length extending from said floor thereof on an opposite side from said rails; and

a pair of non-metallic sashes slidably disposed in said frame to move between a respective pair of said walls of said first extension and said fourth extension of said frame laterally between a closed position and an open position relative to said frame.

20. A sliding door assembly as set forth in claim 19 wherein each sash carries an elongated resilient stop on one side for abutting a respective one of said second extrusion and said third extrusion to cushion the closure of said respective sash thereagainst and wherein each stop is a rectangular block body having a pair of parallel flanges defining a U-shaped recess along the length thereof and a pair of legs, each said leg extending outwardly and laterally of a respective flange for splaying laterally outwardly when closed against a respective one of said second extrusion and said third extrusion.

Assignments (12)
IP SECURITY AGREEMENT Recorded Jul 2, 2025
From: CSF EDC USA HOLDING INC.; THERMOSEAL INDUSTRIES, LLC
To: NATIONAL BANK OF CANADA
Reel/Frame 071787/0145 →
RELEASE OF SECURITY INTEREST Recorded Jun 3, 2025
From: WILMINGTON TRUST, NATIONAL ASSOCIATION, IN ITS CAPACITY AS ADMINISTRATIVE AGENT
To: THERMOSEAL INDUSTRIES, LLC
Reel/Frame 071304/0361 →
RELEASE OF SECURITY INTEREST Recorded Jun 3, 2025
From: ANTARES CAPITAL LP, IN ITS CAPACITY AS ADMINISTRATIVE AGENT
To: THERMOSEAL INDUSTRIES, LLC
Reel/Frame 071304/0319 →
RELEASE OF SECURITY INTEREST Recorded Jun 3, 2025
From: WILMINGTON TRUST, NATIONAL ASSOCIATION, IN ITS CAPACITY AS ADMINISTRATIVE AGENT
To: THERMOSEAL INDUSTRIES, LLC
Reel/Frame 071304/0283 →
SECURITY INTEREST Recorded Jun 2, 2020
From: THERMOSEAL INDUSTRIES, LLC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION
Reel/Frame 052807/0053 →
PATENT SECURITY AGREEMENT (SECOND LIEN) Recorded May 17, 2018
From: THERMOSEAL INDUSTRIES, LLC
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 046591/0201 →
PATENT SECURITY AGREEMENT (FIRST LIEN) Recorded May 16, 2018
From: THERMOSEAL INDUSTRIES, LLC
To: ANTARES CAPITAL LP, AS AGENT
Reel/Frame 046173/0165 →
RELEASE OF SECURITY INTEREST Recorded May 15, 2018
From: GOLUB CAPITAL MARKETS LLC (FKA GCI CAPITAL MARKETS LLC)
To: THERMOSEAL INDUSTRIES, LLC
Reel/Frame 045811/0862 →
RELEASE OF SECURITY INTEREST Recorded May 15, 2018
From: GOLUB CAPITAL MARKETS LLC (FKA GCI CAPITAL MARKETS LLC)
To: THERMOSEAL INDUSTRIES, LLC
Reel/Frame 045811/0757 →
SECURITY INTEREST Recorded Apr 28, 2017
From: THERMOSEAL INDUSTRIES, LLC
To: GOLUB CAPITAL MARKETS LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 042176/0718 →
SECURITY INTEREST Recorded Apr 2, 2015
From: THERMOSEAL INDUSTRIES, LLC
To: GCI CAPITAL MARKETS LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 035318/0648 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 20, 2010
From: CHUBB, RICHARD; WEARSCH, RALPH R.
To: THERMOSEAL INDUSTRIES, LLC
Reel/Frame 024417/0401 →