Patent US5418767A successfully refreshed from Google Patents.
Patent US5613257A successfully refreshed from Google Patents.
US5613257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular cushion construction with detachable pommel
Assignee: ROBERT H GRAEBE REVOCABLE TRUST
•
Filing: 1994-11-04
•
Granted: 1997-03-25
•
Expires: 2014-11-04
Abstract
Abstract A modular cushion comprising a shaped base which has a flat rear portion having a substantially flat center area and a raised front portion with angularly directed valleys on each side, a removable pommel releasably secured to the flat center portion, a resilient pad positioned on the flat portion of the base to relieve pressure on the ischial and trochanters and a cover having a non-skid undersurface and two-way stretchable material covering a portion of the top. The resilient pad preferably has an array of upstanding interconnected inflatable cells. The base is of porous cellular material and has a water impervious separate integral skin adhered over the top surface for strength and protection.
Inventors
- 👤 Robert H. Graebe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:05
CPC Classifications
A; A61; A61G; A61G5/00; A61G5/10; A61G5/1043; A47; A47C; A47C27/00; A47C27/08; A47C27/081; A47C27/14; A47C27/142; A47C27/146; A47C27/148; A47C27/18; A47C4/00; A47C4/54; A47C7/00; A47C7/02; A47C7/021; A47C7/029; A61G5/1045; A61G5/1091; A61G7/00; A61G7/05; A61G7/057; A61G7/05715; A61G7/05707; Y; Y10; Y10S; Y10S5/00; Y10S5/922
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
230 words
A substantially rectangular shaped base made from expanded foam having a substantially rectangular rear portion having a substantially flat upper surface to accommodate the buttocks of a user, a raised front portion having a top surface adapted to support a user, the top surface of the front portion having a substantially flat center portion bounded by two slight leg depressions which retain and position the user without impeding slide transfer of the user on and off the base, the leg depressions being angularly inclined in a diverging direction toward the front of the base to assist in positioning the user, an angularly inclined stepdown section connecting the flat rear portion and the raised front portion to provide a transition which minimizes deformation of the soft tissues of the user which are positioned above this part of the base, the rear portion extending from the back edge of the base to the stepdown section and substantially completely across the base from side-to-side and being of substantially uniform thickness throughout, and a removable pommel member releasably attachable to the flat center of the front portion, the pommel member being a substantially triangular member having a flat substantially triangular bottom surface, a substantially triangular front surface and two substantially triangular side surfaces which come together at one edge to define a ridge line from the front toward the stepdown portion of the base.
Claim 2
Dependent Claim
230 words
A substantially rectangular shaped base made from expanded foam having a substantially rectangular rear portion having a substantially flat upper surface to accommodate the buttocks of a user, a raised front portion having a top surface adapted to support a user, the top surface of the front portion having a substantially flat center portion bounded by two slight leg depressions which retain and position the user without impeding slide transfer of the user on and off the base, the leg depressions being angularly inclined in a diverging direction toward the front of the base to assist in positioning the user, an angularly inclined stepdown section connecting the flat rear portion and the raised front portion to provide a transition which minimizes deformation of the soft tissues of the user which are positioned above this part of the base, the rear portion extending from the back edge of the base to the stepdown section and substantially completely across the base from side-to-side and being of substantially uniform thickness throughout, and a removable pommel member releasably attachable to the flat center of the front portion, the pommel member being a substantially triangular member having a flat substantially triangular bottom surface, a substantially triangular front surface and two substantially triangular side surfaces which come together at one edge to define a ridge line from the front toward the stepdown portion of the base.
Claim 3
Dependent Claim
49 words
The base of claim 1 wherein the pommel member has a flat bottom surface which is provided with a slot and loop and hook fastener members positioned in the slot and wherein the flat center portion of the base has a corresponding loop and hook fastener member attached thereto.
Claim 4
Dependent Claim
34 words
The base of claim 1 including a separate distinct surface skin member bonded to the top surface of said base, said surface member being moisture impervious and sealing the top surface of said base.
Claim 5
Dependent Claim
35 words
The base of claim 1 including raised side edges on the front portion and the flat center portion is below the side edges to facilitate transfer of a user on and off of the base.
Claim 6
Dependent Claim
32 words
The base of claim 1 including in combination a resilient pad positioned on the substantially flat upper surface of the base rear portion and means for fastening the pad to the base.
Claim 7
Dependent Claim
32 words
The combination of claim 5 wherein the fastening means comprises loop and hook fasteners secured to the bottom surface of the resilient pad and to the upper surface of the rear portion.
Claim 8
Dependent Claim
20 words
The combination of claim 6 wherein the pad is an air inflatable cushion having areas of upstanding inflatable air cells.
Claim 9
Dependent Claim
15 words
The combination of claim 5 including a cover positioned over the pad and the base.
Claim 10
Dependent Claim
165 words
A substantially rectangular shaped base made from porous water blown expanded polyurethane foam having a substantially rectangular rear portion having a substantially flat upper surface to accommodate the buttocks of a user, a raised front portion having a top surface adapted to support a user, and an angularly inclined stepdown section connecting the flat rear portion and the raised front portion to provide a transition which minimizes deformation of the soft tissues of the user which are positioned above this part of the base, the top surface of the front portion having a substantially flat center portion bounded by two slight leg depressions which retain and position the user without impeding slide transfer of the user on and off the base, the foam base being of relatively porous structure to reduce weight, and a moisture impervious skin adhered to and covering the top and outer side walls of the base to form a low weight water blown urethane foam base resistant to moisture and chemicals.
Claim 11
Dependent Claim
165 words
A substantially rectangular shaped base made from porous water blown expanded polyurethane foam having a substantially rectangular rear portion having a substantially flat upper surface to accommodate the buttocks of a user, a raised front portion having a top surface adapted to support a user, and an angularly inclined stepdown section connecting the flat rear portion and the raised front portion to provide a transition which minimizes deformation of the soft tissues of the user which are positioned above this part of the base, the top surface of the front portion having a substantially flat center portion bounded by two slight leg depressions which retain and position the user without impeding slide transfer of the user on and off the base, the foam base being of relatively porous structure to reduce weight, and a moisture impervious skin adhered to and covering the top and outer side walls of the base to form a low weight water blown urethane foam base resistant to moisture and chemicals.
Claim 12
Dependent Claim
64 words
The base of claim 9 including a removable pommel member releasably attachable to the flat center portion, the pommel member having a flat bottom provided with a recess and loop and hook fasteners positioned in the recess, the flat center portion having corresponding loop and hook fastener members positioned on the top surface of the outer skin to maintain the integrity of the skin.
References Cited (Backward Citations)
US2800165A
Cited
US2970638A
Cited
FR1271660A
Cited
US3487134A
Cited
US3376070A
Cited
US3381999A
Cited
US3542421A
Cited
US4234228A
Cited
US4643481A
Cited
US4660888A
Cited
US4796948A
Cited
US4753480A
Cited
US4824169A
Cited
US5018790A
Cited
US5149173A
Cited
US5211446A
Cited
US5052068A
Cited
US5137333A
Cited
USD335235S
Cited
US5152023A
Cited
US5163737A
Cited
US5378045A
Cited
US5317773A
Cited
US5369828A
Cited
US5461741A
Cited
US5333921A
Cited
US5352023A
Cited
US5272780A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-03-24 | 2000-09-23 | 2001-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-03-24 | 2004-09-23 | 2005-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-03-24 | 2008-09-23 | 2009-03-25 | $7700.00 | Window Closed / Lapsed |