US3736604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid filled mattress
Assignee: Carson Manufacturing Co Inc
•
Filing: 1971-03-01
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Granted: 1973-06-05
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Expires: 1991-03-01
Abstract
Abstract A fluid filled mattress surrounded by a protective sheet with a fireproof sheet on the top held in place by a cover sheet, provided with means to form a flexible framework adjustable to suitable pressures of the fluid in the mattress; also provided with flap means inside of the mattress dividing it into compartments, the flap means being either perforated or freely swingable so as to resist excessive motion of the body or fluid within the mattress when displaced by weight thereon; also securing means to hold the lining and cover in position in a box in which the fluid mattress is confined.
Inventors
- 👤 R Carson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:10
CPC Classifications
A; A47; A47C; A47C21/00; A47C21/04; A47C21/048; A47C27/00; A47C27/08; A47C27/085; A47C27/087; A47C31/00; A47C31/001
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
89 words
In a fluid filled mattress, a bag made of pliant material, means through which said bag is filled with fluid, means to maintain the filled bag in the shape of a mattress and to inhibit lateral expansion thereof, waterproof protective covering around the bottom and sides of said fluid filled bag to prevent accidental escape of fluid, a plurality of baffle flaps extended from the top of said bag inside toward the bottom of said bag and being swingable and being capable to retard said movement of said fluid.
Claim 2
Dependent Claim
89 words
In a fluid filled mattress, a bag made of pliant material, means through which said bag is filled with fluid, means to maintain the filled bag in the shape of a mattress and to inhibit lateral expansion thereof, waterproof protective covering around the bottom and sides of said fluid filled bag to prevent accidental escape of fluid, a plurality of baffle flaps extended from the top of said bag inside toward the bottom of said bag and being swingable and being capable to retard said movement of said fluid.
Claim 3
Dependent Claim
27 words
A mattress as specified in claim 1, and weight means on each of said flaps to predetermine the degree of resistance to fluid movement in said mattress.
Claim 4
Dependent Claim
97 words
In a fluid filled mattress, a bag made of pliant material, means through which said bag is filled with fluid, means to maintain the filled bag in the shape of a mattress and to inhibit lateral expansion thereof, waterproof protective covering around the bottom and sides of said fluid filled bag to prevent accidental escape of fluid, said waterproof covering having a bottom, sides, flexible strips along tops of the sides being adapted to be turned over the top of said bag, and fastening means to hold said strips in position on the top of said bag.
Claim 5
Dependent Claim
97 words
In a fluid filled mattress, a bag made of pliant material, means through which said bag is filled with fluid, means to maintain the filled bag in the shape of a mattress and to inhibit lateral expansion thereof, waterproof protective covering around the bottom and sides of said fluid filled bag to prevent accidental escape of fluid, said waterproof covering having a bottom, sides, flexible strips along tops of the sides being adapted to be turned over the top of said bag, and fastening means to hold said strips in position on the top of said bag.
Claim 6
Dependent Claim
26 words
A mattress as specified in claim 3, and a protective pad on the top of said bag extended under and being held by said flexible strips.
Claim 7
Dependent Claim
36 words
A mattress as specified in claim 3, and said shape maintaining means including a band extending around the sides of said bag and secured together to a predetermined size for predetermining the stiffness of said mattress.
Claim 8
Dependent Claim
85 words
In a fluid filled mattress, a bag made of pliant material, means through which said bag is filled with fluid, means to maintain the filled bag in the shape of a mattress and to inhibit lateral expansion thereof, waterproof protective covering around the bottom and sides of said fluid filled bag to prevent accidental escape of fluid, said shape maintaining means including a band extending around the sides of said bag and secured together to a predetermined size for predetermining the stiffness of said mattress.
Claim 9
Dependent Claim
85 words
In a fluid filled mattress, a bag made of pliant material, means through which said bag is filled with fluid, means to maintain the filled bag in the shape of a mattress and to inhibit lateral expansion thereof, waterproof protective covering around the bottom and sides of said fluid filled bag to prevent accidental escape of fluid, said shape maintaining means including a band extending around the sides of said bag and secured together to a predetermined size for predetermining the stiffness of said mattress.
Claim 10
Dependent Claim
102 words
In a fluid filled mattress, a bag made of pliant material, means through which said bag is filled with fluid, means to maintain the filled bag in the shape of a mattress and to inhibit lateral expansion thereof, waterproof protective covering around the bottom and sides of said fluid filled bag to prevent accidental escape of fluid, said shape maintaining means including, a stiffener element along each side of said bag and a tightening element surrounding said bag and said stiffening elements, and means to hold said tightening elements secured at a predetermined tightness thereby to predetermine the stiffness of said mattress.
Claim 11
Dependent Claim
102 words
In a fluid filled mattress, a bag made of pliant material, means through which said bag is filled with fluid, means to maintain the filled bag in the shape of a mattress and to inhibit lateral expansion thereof, waterproof protective covering around the bottom and sides of said fluid filled bag to prevent accidental escape of fluid, said shape maintaining means including, a stiffener element along each side of said bag and a tightening element surrounding said bag and said stiffening elements, and means to hold said tightening elements secured at a predetermined tightness thereby to predetermine the stiffness of said mattress.
Claim 12
Dependent Claim
120 words
In a fluid filled mattress, a bag made of pliant material, means through which said bag is filled with fluid, means to maintain the filled bag in the shape of a mattress and to inhibit lateral expansion thereof, waterproof protective covering around the bottom and sides of said fluid filled bag to prevent accidental escape of fluid, said shape maintaining means including a rigid frame surrounding said bag, said waterproof protective covering including a lining extended over all the sides and the bottom of said frame, a cover extended over the top of said bag secured to the frame, and said frame and said lining and cover being of sufficient looseness to permit the tucking of bedding around said mattress.
Claim 13
Dependent Claim
120 words
In a fluid filled mattress, a bag made of pliant material, means through which said bag is filled with fluid, means to maintain the filled bag in the shape of a mattress and to inhibit lateral expansion thereof, waterproof protective covering around the bottom and sides of said fluid filled bag to prevent accidental escape of fluid, said shape maintaining means including a rigid frame surrounding said bag, said waterproof protective covering including a lining extended over all the sides and the bottom of said frame, a cover extended over the top of said bag secured to the frame, and said frame and said lining and cover being of sufficient looseness to permit the tucking of bedding around said mattress.
Claim 14
Dependent Claim
60 words
A mattress as specified in claim 8, and means for securing said cover and said lining to the sides of said frame including rigid fastening elements overlying the edge portions of said cover and lining along the top edge portion of the sides of said frame, and means to secure said fastening elements to the respective sides of said frame.
Claim 15
Dependent Claim
33 words
A mattress as specified in claim 9, and a portion of said fasteniNg elements being removable to permit access to the space between the cover and lining for filling or emptying said bag.
Claim 16
Dependent Claim
26 words
A mattress as specified in claim 10, heating means between said lining and said bag, and heat insulating means between said heating means and said lining.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-04 | 1976-12-04 | 1977-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-04 | 1980-12-04 | 1981-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-04 | 1984-12-04 | 1985-06-05 | $7700.00 | Window Closed / Lapsed |