IP Library Granted Patent US 7,640,704
Granted Patent B2
US 7,640,704 · App. 12/021,134 · Granted Jan 5, 2010

Strengthened door with stiffeners

Assignee: Speyer Door and Window, Inc.
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Quick Facts
Patent No.
US 7,640,704
App. No.
12/021,134
Granted
Jan 5, 2010
Kind
B2
Abstract

A door comprises a frame, first and second outer skins, and first and second stiffeners. The first and second outer skins are respectively connected to first and second sides of the frame, and the first and second stiffeners are positioned between the first and second outer skins and are attached to the frame. The first stiffener is connected to the first side of the frame, and the second stiffener is connected to the second side of the frame. The first and second outer skins are respectively connected to the first and second stiffeners at positions adjacent the frame. The first and second stiffeners are joined together within an area defined by the frame, and the first and second stiffeners are joined together along a plane approximately equidistant from the first and second outer skins. The door also includes a window.

Claims (24)

1. A door, comprising:

a frame;

first and second outer skins respectively connected to first and second sides of the frame; and

first and second stiffeners positioned between the first and second outer skins and attached to the frame, wherein

the first and second stiffeners are joined together within an area defined by the frame, and

the first and second stiffeners are joined together along a plane approximately equidistant from the first and second outer skins the first stiffener is connected to the first side of the frame, and the second stiffener is connected to the second side of the frame.

2. The door according to claim 1 , wherein the first and second outer skins respectively connected to the first and second stiffeners at positions adjacent the frame.

3. The door according to claim 1 , wherein a gap exists between the first stiffener and the first outer skin and between the second stiffener and the second outer skin where the first stiffener is joined together with the second stiffener.

4. The door according to claim 1 , wherein

the first outer skin and the first stiffener define a first cavity therebetween, and

the second outer skin and the second stiffener define a second cavity therebetween.

5. The door according to claim 4 , further comprising an insulator is positioned within the first cavity and the second cavity.

6. The door according to claim 5 , wherein the insulator is a rigid foam.

7. The door according to claim 6 , further comprising an insulator substantially completely between the first and second outer skins.

8. The door according to claim 7 , wherein the insulator is a rigid foam.

9. The door according to claim 1 , wherein the frame defines a complete outer periphery of the door.

10. The door according to claim 1 , further comprising a window.

11. The door according to claim 1 , wherein the first and second skins are formed from a different material than the first and second stiffeners.

12. The door according to claim 1 , wherein

each of the first and second stiffeners include first and second portions,

the first and second portions are respectively within first and second separate planes, and

the first and second planes are substantially parallel to and offset from one another.

13. The door according to claim 1 , wherein

the first and second stiffeners extend substantially along an entire height and width of the door.

Assignments (6)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 23, 2022
From: OTTO (ABC), LLC
To: WEDGETLS LLC
Reel/Frame 061196/0379 →
CHANGE OF NAME Recorded Sep 25, 2017
From: TYTO LIFE LLC
To: OTTO LLC
Reel/Frame 043987/0466 →
CHANGE OF NAME Recorded Jun 9, 2014
From: SECURASEAL INNOVATIONS LLC
To: TYTO LIFE LLC
Reel/Frame 033105/0228 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 2, 2014
From: SECURA-SEAL TECHNOLOGIES LLC
To: SECURASEAL INNOVATIONS LLC
Reel/Frame 033003/0700 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 22, 2010
From: SPEYER DOOR AND WINDOW, INC.
To: SECURA-SEAL TECHNOLOGIES LLC
Reel/Frame 024114/0652 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 28, 2008
From: SALERNO, DON S.
To: SPEYER DOOR AND WINDOW, INC.
Reel/Frame 020425/0842 →
Continuity (2)
Provisional Application 6101815900 · Dec 31, 2007
Related Publication 20090165423A1 · Jul 2, 2009