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Plunger matrix mattress assemblies

U.S. Patent 9,314,108

Issued April 19, 2016

Abstract

A plunger matrix mattress includes a number of independently movable foam padded plungers that form an array of independently movable points of support. This type of mattress significantly improves body contouring over conventional coil spring mattress designs. The plunger matrix mattress also allows substantial airflow through the mattress improving over conventional foam mattress designs. Different plungers may have different spring and dampening characteristics to allow different plungers and plunger zones of the mattress to exhibit different firmness levels. Individual plungers may be removed and replaced independently, for example to replace the plunger with another plunger with a different spring characteristic, and make other types of adjustments and repairs. A variety of optional design features and configurations provide for a wide range of alternative configurations with differing levels of sophistication and functionality to produce a range of models designed to meet differing customer preferences and price points.

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Plunger for a plunger matrix mattress

U.S. Patent 9,226,591

Issued January 5, 2016

Abstract

A plunger for a matrix mattress includes a pin guide having a flange and a guide body extending from the flange. A pin slidably received within the pin guide includes a flange located above the flange of the pin guide and a shaft extending from the flange through the guide body. The flange of the pin carries a deformable head. A tension spring has a first end fixed to the guide body and a second end located below the guide body positioned to receive a bottom end of the pin shaft. The spring is configured to resiliently stretch with downward motion of the pin with respect to the pin guide. A dampening device captured around the shaft of the pin between the flange of the pin and the flange of the pin guide resiliently deforms with downward motion of the pin with respect to the pin guide.

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Dual-spring plunger for a plunger matrix mattress

U.S. Patent 9,119,478

Issued September 1, 2015

Abstract

A dual-spring plunger for a plunger matrix mattress assembly includes an outer tension spring with an upper end fixed to an outer spring mount of a plunger guide body and a lower end located below the guide body positioned to receive a bottom end of a pin of the plunger. An inner tension spring nested within the outer tension spring has an upper end fixed to the inner spring mount of the guide body and a lower end having a spur slidably captured within a slot through a fin of the shaft of the pin. The outer spring is tensioned while the inner spring is not tensioned during a first portion of downward movement of the pin relative to the pin guide, whereas both the outer and the inner spring are tensioned during a second portion of downward movement of the pin relative to the pin guide.

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Spring coils for innerspring assemblies and methods of manufacture

U.S. Patent 8,979,079

Issued March 17, 2015

Abstract

A progressive spring coil comprises a first spring portion comprising a top end and a bottom end and having a first spring rate, wherein the first spring rate is substantially linear or substantially nonlinear; a second spring portion comprising a top end and a bottom end and having a second spring rate, wherein the second spring rate is substantially linear or substantially nonlinear; and a third spring portion disposed between the first spring portion and the second spring portion, wherein the third spring portion has a third spring rate, wherein the third spring rate is substantially linear or substantially nonlinear.

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Asymmetric coil spring

U.S. Patent D681,980

Issued May 14, 2013

Abstract

The ornamental design for an asymmetric coil spring, as shown and described.
[Certificate for correction of inventorship dated 09/03/2013 attached on page 4.]

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