IP Library › Granted Patent US 8,689,380
Granted Patent B2
US 8,689,380 · App. 13/356,003 · Granted Apr 8, 2014

Multi-stranded coil spring

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Quick Facts
Patent No.
US 8,689,380
App. No.
13/356,003
Granted
Apr 8, 2014
Kind
B2
Abstract

A spring assembly including a helical coil formed from a multi-strand cord.

Claims (14)

1. A coil spring assembly, comprising:

a first helical spring comprising a plurality of strands configured as a multi-strand cord, the first helical spring having four or more active coils, at least one inactive coil forming a closed end, and a free length of at least about four inches; and

a second helical spring comprising a plurality of strands configured as a multi-strand cord, the second helical spring having four or more active coils, at least one inactive coil forming a closed end, and a free length of at least about four inches,

wherein the first helical spring has a smaller diameter than the second helical spring and is located concentrically inside the second helical spring; and wherein the first and second helical spring have a substantially constant mean diameter.

2. The coil spring assembly of claim 1 , wherein the multi-strand cord defining the first and second helical springs has a coating.

3. The coil spring assembly of claim 2 , wherein the coating includes an epoxy.

4. The coil spring assembly of claim 2 , wherein the coating includes a plastic.

5. The coil spring assembly of claim 2 , wherein the coating includes polytetrafluoroethylene (PTFE).

6. The coil spring assembly of claim 1 , wherein the plurality of strands of the multi-strand cords defining the first and second helical springs comprises three or more strands.

7. The coil spring assembly of claim 1 , wherein the first and second helical springs have a substantially circular cross sectional geometry.

8. The coil spring assembly of claim 1 , wherein at least one of the first and second helical springs has a variable pitch.

9. The coil spring assembly of claim 1 , wherein at least one of the first and second helical springs has a constant pitch.

10. The coil spring assembly of claim 1 , wherein the plurality of strands defining the first and second helical springs is formed of a material selected from the group consisting of plastic, steel, aluminum, copper, titanium, bronze, and rubber.

11. The coil spring assembly of claim 1 , wherein the first and second helical springs comprise a pocketed spring.

Assignments (18)
SECURITY INTEREST Recorded Aug 2, 2024
From: WELLS FARGO BANK, NATIONAL ASSOCIATION; NATIONAL BEDDING COMPANY, L.L.C.; SERTA SIMMONS BEDDING, LLC; SSB MANUFACTURING COMPANY; TOMORROW SLEEP LLC; TUFT & NEEDLE, LLC; DREAMWELL, LTD.
To: ECLIPSE BUSINESS CAPITAL LLC, AS ADMINISTRATIVE AGENT
Reel/Frame 068325/0886 →
SECURITY AGREEMENT Recorded Jul 3, 2023
From: DREAMWELL, LTD.; TUFT & NEEDLE, LLC; SERTA SIMMONS BEDDING, LLC; NATIONAL BEDDING COMPANY, L.L.C.; TOMORROW SLEEP LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION
Reel/Frame 064193/0668 →
RELEASE OF FIRST LIEN SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded Jun 30, 2023
From: ECLIPSE BUSINESS CAPITAL LLC, AS ADMINISTRATIVE AGENT
To: DREAMWELL, LTD.; SSB MANUFACTURING COMPANY; NATIONAL BEDDING COMPANY L.L.C.; SERTA SIMMONS BEDDING, LLC; TUFT & NEEDLE, LLC; TOMORROW SLEEP LLC
Reel/Frame 064185/0236 →
RELEASE OF FIRST LIEN SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded Jun 30, 2023
From: UBS AG, STAMFORD BRANCH, AS ADMINISTRATIVE AGENT
To: DREAMWELL, LTD.; SSB MANUFACTURING COMPANY; NATIONAL BEDDING COMPANY, L.L.C.
Reel/Frame 064185/0293 →
RELEASE OF SUPER-PRIORITY SECURITY INTEREST IN INTELLECTUAL PROPERTY Recorded Jun 30, 2023
From: WILMINGTON SAVINGS FUND SOCIETY, FSB, AS ADMINISTRATIVE AGENT
To: DREAMWELL, LTD.; SSB MANUFACTURING COMPANY; NATIONAL BEDDING COMPANY, L.L.C.; SERTA SIMMONS BEDDING, LLC; TUFT & NEEDLE, LLC; TOMORROW SLEEP LLC
Reel/Frame 064185/0479 →
TERM LOAN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Jun 30, 2023
From: DREAMWELL, LTD.; TUFT & NEEDLE, LLC; SERTA SIMMONS BEDDING, LLC; NATIONAL BEDDING COMPANY, L.L.C.; TOMORROW SLEEP LLC; SSB MANUFACTURING COMPANY
To: WILMINGTON SAVINGS FUND SOCIETY, FSB, AS ADMINISTRATIVE AGENT
Reel/Frame 064185/0583 →
NOTICE OF AGENCY RESIGNATION AND ASSIGNMENT OF SUPER-PRIORITY TERM LOAN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Feb 6, 2023
From: UBS AG, STAMFORD BRANCH, AS THE RESIGNING ADMINISTRATIVE AGENT
To: WILMINGTON SAVINGS FUND SOCIETY, FSB, AS SUCCESSOR ADMINISTRATIVE AGENT
Reel/Frame 063272/0391 →
SECURITY INTEREST Recorded Jan 31, 2023
From: DREAMWELL, LTD.; SSB MANUFACTURING; NATIONAL BEDDING; SERTA SIMMONS BEDDING, LLC; TUFT & NEEDLE, LLC; TOMORROW SLEEP LLC
To: ECLIPSE BUSINESS CAPITAL LLC
Reel/Frame 062571/0391 →
SECURITY INTEREST Recorded Jan 27, 2023
From: DREAMWELL, LTD.; SSB MANUFACTURING; NATIONAL BEDDING; SERTA SIMMONS BEDDING, LLC; TUFT & NEEDLE, LLC; TOMORROW SLEEP LLC
To: ECLIPSE BUSINESS CAPITAL LLC
Reel/Frame 062525/0458 →
RELEASE OF SECOND LIEN SECURITY INTEREST IN INTELLECTUAL PROPERTY RECORDED AT R/F 040813/1075 Recorded May 10, 2022
From: GOLDMAN SACHS BANK USA, AS ADMINISTRATIVE AGENT
To: DREAMWELL, LTD.
Reel/Frame 059925/0322 →
SUPER-PRIORITY TERM LOAN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Jun 24, 2020
From: DREAMWELL, LTD.
To: UBS AG, STAMFORD BRANCH, AS ADMINISTRATIVE AGENT
Reel/Frame 053022/0029 →
SECOND LIEN TERM LOAN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Dec 5, 2016
From: DREAMWELL, LTD.
To: GOLDMAN SACHS BANK USA, AS ADMINISTRATIVE AGENT
Reel/Frame 040813/0175 →
ABL INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Dec 5, 2016
From: DREAMWELL, LTD.
To: UBS AG, STAMFORD BRANCH, AS ADMINISTRATIVE AGENT
Reel/Frame 040813/0213 →
FIRST LIEN TERM LOAN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Dec 5, 2016
From: DREAMWELL, LTD.
To: UBS AG, STAMFORD BRANCH, AS ADMINISTRATIVE AGENT
Reel/Frame 040813/0136 →
RELEASE OF SECURITY INTEREST Recorded Nov 18, 2016
From: MORGAN STANLEY SENIOR FUNDING, INC., AS AGENT
To: DREAMWELL, LTD.; SIMMONS BEDDING COMPANY; NATIONAL BEDDING COMPANY L.L.C.
Reel/Frame 040647/0639 →
CORRECTIVE ASSIGNMENT TO CORRECT THE RECEIVING PARTY DATA INFORMATION FROM UBS AG, STAMFORD BRANCH, AS AGENT TO MORGAN STANLEY SENIOR FUNDING, INC. PREVIOUSLY RECORDED ON REEL 029128 FRAME 0126. ASSIGNOR(S) HEREBY CONFIRMS THE RECEIVING PARTY DATA INFORMATION. Recorded May 1, 2014
From: SIMMONS BEDDING COMPANY; DREAMWELL, LTD.; NATIONAL BEDDING COMPANY L.L.C.
To: MORGAN STANLEY SENIOR FUNDING, INC., AS AGENT
Reel/Frame 032810/0697 →
SECURITY AGREEMENT Recorded Oct 15, 2012
From: SIMMONS BEDDING COMPANY; DREAMWELL, LTD.; NATIONAL BEDDING COMPANY L.L.C.
To: UBS AG, STAMFORD BRANCH, AS AGENT
Reel/Frame 029128/0091 →
SECURITY AGREEMENT Recorded Oct 15, 2012
From: SIMMONS BEDDING COMPANY; DREAMWELL, LTD.; NATIONAL BEDDING COMPANY L.L.C.
To: UBS AG, STAMFORD BRANCH, AS AGENT
Reel/Frame 029128/0126 →