US4527843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bed pan and urine bottle washing and disinfecting machines
Assignee: AVON MURDOCH Ltd EPSTEIN BUILDINGS MIVART STREET EASTON BRISTOL BS5 6JF
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Filing: 1981-12-23
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Granted: 1985-07-09
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Expires: 2001-12-23
Abstract
Abstract A bed pan washing and disinfecting machine has a cradle mounted on a transverse shaft in a washing chamber of the machine, the cradle having an upper part to receive a bed pan in a substantially horizontal orientation and a lower part to receive a urine bottle substantially in the orientation of use so that there is no spillage during loading. After loading of the bed pan and urine bottle and closure of a door of the machine, the shaft is rotated clockwise through 110° to rotate the cradle and thus to empty the bed pan and urine bottle within the washing chamber. Cold water flushes the bed pan contents through a water trap of the machine, hot water washes the bed pan and urine bottle, and a steam cycle washes and disinfects the bed pan and urine bottle before the cradle is rotated back to its original position. The door of the machine may be a wedge-shaped vertically slidable door which on movement to a closed position effects, with the inter-position of a resilient sealing member, a seal against flanges of wall portions of the washing chamber around an access opening in a wall of the washing chamber.
Inventors
- 👤 George Murdoch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:53
CPC Classifications
A; A61; A61G; A61G9/00; A61G9/02; A61G2203/00; A61G2203/30; A61G2203/46
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
137 words
A bed pan and urine bottle washing and disinfecting machine having a wash chamber, an opening providing access to the interior of said wash chamber, a generally wedge-shaped door having a lower edge of lesser thickness than an upper edge thereof, said door slidably mounted in guide rails provided at positions laterally of said door, said guide rails extending substantially vertically, said door having an inner face which slopes downwardly outwardly and flanges formed by wall portions of said wash chamber at positions laterally of said access opening sloping downwardly outwardly with the same angle of inclination as said inner face of said door such that said inner face and said flanges cooperate to wedgingly close said access opening, and means to seal said door around said access opening as said door moves into a closed position.
Claim 2
Dependent Claim
137 words
A bed pan and urine bottle washing and disinfecting machine having a wash chamber, an opening providing access to the interior of said wash chamber, a generally wedge-shaped door having a lower edge of lesser thickness than an upper edge thereof, said door slidably mounted in guide rails provided at positions laterally of said door, said guide rails extending substantially vertically, said door having an inner face which slopes downwardly outwardly and flanges formed by wall portions of said wash chamber at positions laterally of said access opening sloping downwardly outwardly with the same angle of inclination as said inner face of said door such that said inner face and said flanges cooperate to wedgingly close said access opening, and means to seal said door around said access opening as said door moves into a closed position.
Claim 3
Dependent Claim
155 words
A bed pan and urine bottle washing and disinfecting machine having a wash chamber, an opening providing access to the interior of said wash chamber, a generally wedge-shaped door with the lower edge of said door of lesser thickness than the upper edge of said door to provide a sloped inner face cooperating with sloped wall portions of said wash chamber to wedgingly close said opening as said door moves into said closed position, said door being slidably mounted in guide rails provided at positions laterally of said door for movement in a substantially vertical plane, said guide rails extending substantially outwardly, flanges formed by wall portions of said wash chamber at positions laterally of said access opening and sloping downwardly outwardly with the same angle of inclination as said inner face of said door, and sealing means provided to seal said door around said access opening as said door moves in a closed position.
Claim 4
Dependent Claim
155 words
A bed pan and urine bottle washing and disinfecting machine having a wash chamber, an opening providing access to the interior of said wash chamber, a generally wedge-shaped door with the lower edge of said door of lesser thickness than the upper edge of said door to provide a sloped inner face cooperating with sloped wall portions of said wash chamber to wedgingly close said opening as said door moves into said closed position, said door being slidably mounted in guide rails provided at positions laterally of said door for movement in a substantially vertical plane, said guide rails extending substantially outwardly, flanges formed by wall portions of said wash chamber at positions laterally of said access opening and sloping downwardly outwardly with the same angle of inclination as said inner face of said door, and sealing means provided to seal said door around said access opening as said door moves in a closed position.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-07-08 | 1989-01-07 | 1989-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-07-08 | 1993-01-07 | 1993-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-07-08 | 1997-01-07 | 1997-07-09 | $7700.00 | Window Closed / Lapsed |