Patent US3783473A successfully refreshed from Google Patents.
US3783473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Washing device
Assignee: Foerenade Fabriksverken AB
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Filing: 1972-11-09
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Granted: 1974-01-08
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Expires: 1992-11-09
Abstract
Abstract A washing device for cleaning surfaces such as human skin and the like hygienically which includes an upper shell portion and a lower plate portion having discharge and suction return openings therein adapted for connection, respectively, to a source of washing foam and a source of vacuum. A porous cover element is received over the shell and the lower plate and underlies the discharge and suction return openings in a manner to effect passage of the washing foam through the porous cover onto the surface being cleaned when the device is pressed thereagainst, the cover effecting passage of the discharged washing foam directly to the suction return opening so as to prevent dripping when the device is raised from the surface being cleaned.
Inventors
- 👤 J Engquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:47
CPC Classifications
A; A47; A47K; A47K7/00; A47K7/02; A61; A61H; A61H9/00; A61H9/0021; A61H9/0028
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
222 words
A washing device for cleaning surfaces such as human skin and the like hygienically, comprising, in combination, body means including a plate portion having at least one discharge opening therein, means within said body defining a flow passage for connecting said discharge opening to a source of washing medium for discharge through said discharge opening, said body means having at least one suction return opening spaced peripherally from said discharge opening, means within said body means for connecting said suction opening to a source of suction, and cover means on said body means, said cover means having a porous portion adapted to cover said discharge opening and said suction opening such that washing medium discharged through said discharge opening passes through said porous portion of said cover means onto the surface being cleaned and is thereafter withdrawn from the surface through said suction opening when said plate portion and associated porous portion of said cover means are pressed against the surface being cleaned, said porous portion of said cover means further being adapted for movement away from said plate portion when the washing device is spaced from the surface being cleaned such that washing medium discharged from said discharge opening is withdrawn through said suction opening without passing outwardly through said porous cover means whereby to prevent dripping of the washing medium.
Claim 2
Dependent Claim
222 words
A washing device for cleaning surfaces such as human skin and the like hygienically, comprising, in combination, body means including a plate portion having at least one discharge opening therein, means within said body defining a flow passage for connecting said discharge opening to a source of washing medium for discharge through said discharge opening, said body means having at least one suction return opening spaced peripherally from said discharge opening, means within said body means for connecting said suction opening to a source of suction, and cover means on said body means, said cover means having a porous portion adapted to cover said discharge opening and said suction opening such that washing medium discharged through said discharge opening passes through said porous portion of said cover means onto the surface being cleaned and is thereafter withdrawn from the surface through said suction opening when said plate portion and associated porous portion of said cover means are pressed against the surface being cleaned, said porous portion of said cover means further being adapted for movement away from said plate portion when the washing device is spaced from the surface being cleaned such that washing medium discharged from said discharge opening is withdrawn through said suction opening without passing outwardly through said porous cover means whereby to prevent dripping of the washing medium.
Claim 3
Dependent Claim
36 words
A washing device as defined in claim 1 wherein said discharge opening is disposed centrally of said plate portion, and wherein said suction opening is located generally adjacent a peripheral edge portion of said plate portion.
Claim 4
Dependent Claim
24 words
A washing device as defined in claim 2 wherein said suction opening comprises an elongated opening which at least partially encircles said discharge opening.
Claim 5
Dependent Claim
33 words
A washing device as defined in claim 1 wherein said cover means comprises a porous glove releasably mounted on said body means and extending substantially around the peripheral surface of said body means.
Claim 6
Dependent Claim
51 words
A washing device as defined in claim 4 wherein said porous glove is made from a single sheet of porous material having generally planar upper and lower surfaces and sliced between its said upper and lower surfaces to define upper and lower layers separable to allow insertion of said body means.
Claim 7
Dependent Claim
55 words
A washing device as defined in claim 1 wherein said plate portion comprises a generally flat lower plate, and wherein said body means further includes an upper shell portion having a rear end wall, and means mounted on said end wall for connecting said washing device to sources of washing medium, pressurized gas and vacuum.
Claim 8
Dependent Claim
79 words
A washing device as defined in claim 6 wherein said upper shell portion defines with said lower plate an internal chamber adapted to be connected to a source of vacuum, said discharge opening being disposed generally centrally in said lower plate and being adapted for connection to sources of washing medium and pressurized gas, said lower plate and said upper shell defining said suction opening therebetween along the periphery of said lower plate in communicating relation with said chamber.
Claim 9
Dependent Claim
95 words
A washing device as defined in claim 1 wherein said body means includes an upper shell portion having means thereon for connection to a source of vacuum, a source of pressurized air and a source of washing medium, said body means further having means for connecting said discharge opening to the sources of pressurized air and washing medium, said suction opening being disposed peripherally of said discharge opening and being adapted for connection to the source of suction such that washing medium discharged through said discharge opening is withdrawn through said suction opening by suction.
Claim 10
Dependent Claim
42 words
A washing device as defined in claim 1 wherein said plate portion is generally triangular in plan configuration and has a plurality of discharge openings spaced along the major axis thereof, said discharge openings being adapted to discharge a washing medium therethrough.
Claim 11
Dependent Claim
64 words
A washing head as defined in claim 1 wherein said flow passage includes a mixing chamber connected in communication with said discharge opening and adapted for connection to sources of washing medium and pressurized air, and including means disposed within said chamber to effect intermixing of washing medium and pressurized air introduced therein to effect discharge of a washing foam through said discharge opening.
Claim 12
Dependent Claim
47 words
A washing device as defined in claim 1 wherein said cover means comprises a porous glove mountable over said body means and having upper and lower layers, said upper and lower layers being interchangeable to place either of said layers in underlying relation to said plate portion.
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) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |