US3594833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feather spring pillow
Assignee: MANFRED RICHTER DAUNENKISSEN-UND BETTENFABRIK
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Filing: 1969-04-17
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Granted: 1971-07-27
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Expires: 1989-04-17
Abstract
Abstract A resilient feather pillow comprising at least two internal chambers surrounded by an outer covering, with one of the chambers containing feathers and the other chamber being subdivided into a number of compartments which are arranged to alternately contain prestressed springs and yieldable elastic material. After compression of the pillow the prestressed springs serve to cause the pillow to assume its original shape and softness.
Inventors
- 👤 Manfred Richter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:40
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/12; A47C27/124; A47G; A47G9/00; A47G9/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
152 words
A pillow, comprising a substantially flat envelope composed of two substantially parallel flexible panels forming edges along the circumference of said pillow; two flexible partitions in the interior of said envelope subdividing the same into two exterior chambers each located adjacent to one of said panels and an interior chamber located between said exterior chambers; flexible dividers in said interior chamber forming therein a central interior compartment spaced from said edges of said pillow; spring means having a high resiliency located in said central inner compartment yieldingly engaging said flexible partitions so as to urge them against the corresponding panels respectively; a first filler material having a lower average resiliency than said spring means filling at least portions of said interior chamber outside of said central inner compartment and a second filler material having an average resiliency higher than the average resiliency of said first filler material and filling said exterior compartments.
Claim 2
Dependent Claim
152 words
A pillow, comprising a substantially flat envelope composed of two substantially parallel flexible panels forming edges along the circumference of said pillow; two flexible partitions in the interior of said envelope subdividing the same into two exterior chambers each located adjacent to one of said panels and an interior chamber located between said exterior chambers; flexible dividers in said interior chamber forming therein a central interior compartment spaced from said edges of said pillow; spring means having a high resiliency located in said central inner compartment yieldingly engaging said flexible partitions so as to urge them against the corresponding panels respectively; a first filler material having a lower average resiliency than said spring means filling at least portions of said interior chamber outside of said central inner compartment and a second filler material having an average resiliency higher than the average resiliency of said first filler material and filling said exterior compartments.
Claim 3
Dependent Claim
26 words
A pillow as defined in claim 1 wherein said spring means comprise metallic coil springs held in at least partly compressed condition by said flexible partitions.
Claim 4
Dependent Claim
30 words
A pillow as defined in claim 1 wherein said interior chamber is divided into a central compartment containing said spring means and two flanking compartments containing said first filler material.
Claim 5
Dependent Claim
36 words
A pillow as defined in claim 1 wherein said interior chamber is divided by said dividers into at least four interior compartments, and compartments having spring means therein alternate with Compartments having first filler material therein.
Claim 6
Dependent Claim
36 words
A pillow as defined in claim 1 wherein said interior and exterior chambers are divided into elongated compartments, and said compartments in said interior chamber are staggered with respect to said compartments in said exterior chambers.
References Cited (Backward Citations)
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Cited
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Cited
US1664537A
Cited
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Cited
US1846312A
Cited
US3109182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |