Title: Sitting-squatting water closet

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1. A dual function water closet for use in either the sitting or the squatting position, comprising: a fixed lower section and a movable upper section foldable thereon; said lower section comprising a closet bowl being elongated in a fore and aft direction; said upper section comprising a toilet set hinged to the aft portion of the closet bowl and being in abutment sealing relationship with the sides of the elongated closet bowl when moved to the down position for use in the sitting position; a footrest fixed to each side of the closet bowl for support of the user in the squat position; said closet bowl having the level of its interior bottom surface below the horizontal plane of the side footrests; a urine spray shield at the forward end of the closet bowl; and said urine spray shield having an outer upper surface which nestles under the forward undersurface of the toilet seat for deflecting the urine of the user into the body of the closet bowl when the user is facing in the forward direction.

2. The water closet as set forth in claim 1, wherein said urine spray shield is formed integral with the body of the closet bowl, and has an interior concave curvature which merges in a streamlined fashion with the inner curvature of the body of the closet bowl and functions to receive and redirect the urine into the body of the closet bowl such that it is not deflected back onto the user.

3. The water closet as set forth in claim 1, wherein: the toilet seat thickness is approximately half of the height difference between the upper surface of the footrests and the top of the toilet seat; whereby, the height difference between the two functional positions of squatting and sitting, is incorporated in the thickness of the movable toilet seat portion of the water closet.

4. The water closet as set forth in claim 1, further including: a drain valve outlet in the bottom of the closet bowl; nozzles mounted under the urine spray shield, and around the interior periphery of the closet bowl; said nozzles being addjusted so as to inject flushing fluid to move deposited waste matter to the drain valve outlet; and said drain valve outlet being positioned within the closet bowl such that the user situated in either the sitting or the squatting position would normally deposit waste matter thereon; whereby, the waste matter does not have to be moved any appreciable distance within the closet bowl by the action of the flush fluid before being removed through the drain valve outlet.

5. The water closet as set forth in claim 1, further including: a urine spray shield at the aft end of the closet bowl for deflecting the urine into the body of the closet bowl when the user is facing in the aft direction.

6. The water closet as set forth in claim 5, further including: means for restraining said movable upper section in the raised position; and a handle fixed to said movable upper section on each side thereof, for support utilization by the user in the squatting position when facing in an aft direction with said movable upper section being restrained in the raised position.

7. A dual purpose water closet for sitting or squatting, comprising: a fixed lower section and a movable upper section foldable thereon; said lower section comprising a closet bowl being of a low-down profile and elongated in a fore and aft direction with upraised sides; said upper section comprising a seat hinged to the rear portion of the closet bowl; said seat being in an abutment sealing relationship along the upper edge of the upraised sides of the closet bowl, when folded down onto said lower section; a footrest on each side of the closet bowl for support of the user in the squat position; said closet bowl having its bottom below the horizontal level of the side footrests; said lower section being for use in a squat position when said upper section is raised; said upper section being for use in a seated position when folded down onto said lower section; a urine spray shield at the forward end of the closet bowl; said urine spray shield having an outer upper surface which nestles under the forward undersurface of the seat for deflecting the urine of the user into the body of the closet bowl when the user is sitting on the toilet seat.

8. The water closet as set forth in claim 7, wherein said urine spray shield is formed integral with the body of the closet bowl, and has an interior concave curvature which functions to receive and redirect the urine into the body of the closet bowl without deflecting it onto the user.

9. The water closet as set forth in claim 7, wherein: the seat thickness is approximately half of the height difference between the upper surface of the footrests and the top of the seat; whereby, the height difference between the two functional positions of squatting and sitting, is incorporated in the thickness of the foldable seat portion of the water closet.

10. The water closet as set forth in claim 7, further including: a drain valve outlet in the bottom of the closet bowl; nozzles mounted under the urine spray shield, and around the interior periphery of the closet bowl; said nozzles being adjusted so as to inject flushing fluid to move deposited waste matter to the drain valve outlet; and said drain valve outlet being positioned within the closet bowl such that the user situated in either the sitting or the squatting position would normally deposit waste matter thereon; whereby, the waste matter does not have to be moved any appreciable distance within the closet bowl by the action of the flush fluid before being removed through the drain valve outlet.

11. The water closet as set forth in claim 7, further including: a urine spray shield at the aft end of the closet bowl for deflecting the urine into the body of the closet bowl when the user is in the squatting position and facing in the aft direction.

12. The water closet as set forth in claim 11, further including: means for restraining the seat in the raised position; and a handle fixed to the seat on each side thereof, for support utilization by the user in the squatting position when facing towards the aft end of the closet bowl with the seat being restrained in the raised position.

13. A dual function use water closet for use in either the sitting or the squatting position, comprising: a closet bowl elongated in a forward and a rearward direction, and having an interior bowl length dimension of at least twice its width; a toilet seat hinged to the rearward portion of the closet bowl, and in abutment sealing relationship with the elongated sides of the closet bowl when folded down onto the closet bowl for use in the sitting position with the user facing in the forward direction; a footrest fixed on each of the elongated sides of the closet bowl for supporting the user in the squatting position; and a urine spray shield at the rearward end of the closet bowl for deflecting the urine into the body of the closet bowl when the user is in the squatting position and facing in the rearward direction.

14. The water closet as set forth in claim 13, wherein said urine spray shield is formed integral with the body of the closet bowl, and has an interior concave curvature for receiving the urine and redirecting it into the body of the closet bowl without deflecting it onto the user when the user is in the squatting position and facing in the rearward direction.

15. The water closet as set forth in claim 13, wherein: the toilet seat thickness is approximately half of the height difference between the upper surface of the footrests and the top of the toilet seat; whereby, the height difference between the two functional positions of squatting and sitting is incorporated in the thickness of the foldable toilet seat portion of the water closet.

16. The water closet as set forth in claim 13, further including: a drain valve outlt in the bottom of the closet bowl; nozzles mounted under the urine spray shield, and around the interior periphery of the closet bowl; said nozzles being adjusted so as to inject flushing fluid to move deposited waste matter to the drain valve outlet; and said drain valve outlet being positioned within the closet bowl such that the user situated in either the sitting or the squatting position would normally deposit waste matter thereon; whereby, the waste matter does not have to be moved any appreciable distance within the closet bowl by the action of the flush fluid before being removed through the drain valve outlet.

17. The water closet as set forth in claim 13, further including: means for restraining the toilet seat in the raised position; and a handle fixed to the toilet seat on each side thereof, for support utilization by the user in the squatting position when facing towards the raised toilet seat and with the toilet seat being restrained in the raised position.

18. The water closet as set forth in claim 13, further including: a urine spray shield at the forward end of the closet bowl; said forward urine spray shield having an outer upper surface which nestles under the forward undersurface of the toilet seat for deflecting the urine into the body of the closet bowl when the user is sitting on the toilet seat and facing in the forward direction.

19. A dual functional use water closet for either the sitting or the squatting position, comprising: a closet bowl elongated in a fore and aft direction, and having an interior bowl length dimension of at last twice its width; a footrest fixed on each of the elongated sides of the closet bowl in a horizontal plane for supporting a person in the squat position; said closet bowl having the level of its interior bottom surface below the horizontal plane of the side footrests for bodily clearance of a person in the squat position, and having an elongated side height above the horizontal plane of the side footrests such that there is no supporting body contact with the person in the squat position; a toilet seat hinged to the aft portion of the closet bowl for movement between a down position to support a person in the sitting position, and a raised position to expose the full interior bowl length dimension of the closet bowl for a person assuming the squatting position; said toilet seat when in the down position, being in abutment sealing relationship with the elongated sides of the toilet bowl for containing the spatter and spray from the deposited waste matter and urine when used by a person in the sitting position; means for restraining the toilet seat in the raised position; and a handle fixed to the toilet seat on each side thereof, for support utilization by a person in the squatting position when facing towards the raised toilet seat and with the toilet seat being restrained in the raised position.

20. A dual functional use water closet for either the sitting or the squatting position, comprising: a closet bowl elongated in a fore and aft direction, and having an interior bowl length dimension of at least twice its width; a footrest fixed on each of the elongated sides of the closet bowl in a horizontal plane for supporting a person in the squat position; said closet bowl having the level of its interior bottom surface below the horizontal plane of the side footrests for bodily clearance of a person in the squat position, and having an elongated side height above the horizontal plane of the side footrests such that there is no supporting body contact with the person in the squat position; a toilet seat hinged to the aft portion of the closet bowl for movement between a down position to support a person in the sitting position, and a raised position to expose the full interior bowl length dimension of the closet bowl for a person assuming the squatting position; said toilet seat when in the down position, being in abutment sealing relationship with the elongated sides of the toilet bowl for containing the spatter and spray from the deposited waste matter and urine when used by a person in the sitting position; and a urine spray shield at the aft end of the closet bowl for deflecting the urine into the body of the closet bowl when the user is in the squatting position and facing in the aft direction.

21. A dual functional use water closet for either the sitting or the squatting position, comprising: a closet bowl elongated in a fore and aft direction, and having an interior bowl length dimension of at least twice its width; a footrest fixed on each of the elongated sides of the closet bowl in a horizontal plane for supporting a person in the squat position; said closet bowl having the level of its interior bottom surface below the horizontal plane of the side footrests for bodily clarance of a person in the squat position, and having an elongated side height above the horizontal plane of the side footrests such that there is no supporting body contact with the person in the squat position; a toilet seat hinged to the aft portion of the closet bowl for movement between a down position to support a person in the sitting position, and a raised position to expose the full interior bowl length dimension of the closet bowl for a person assuming the squatting position; said toilet seat when in the down position, being in abutment sealing relationship with the elongated sides of the toilet bowl for containing the spatter and spray from the deposited waste matter and urine when used by a person in the sitting position; and a urine spray shield at the forward end of the closet bowl; said forward urine spray shield having an outer upper surface which nestles under the forward undersurface of the toilet seat for deflecting the urine into the body of the closet bowl when the user is in the squatting position and facing in the forward direction.

22. The water closet as set forth in claim 21, wherein said urine spray shield is formed integral with the body of the closet bowl, and has an interior concave curvature for receiving the urine and directing it into the body of the closet bowl without deflecting it onto the user when the user is in the squatting position and facing in the forward direction.

Other info:

Inventors: Kristoffersen, Bjorn R. (Kirkland, WA, US)

Application Number: 663587
Filing Date: 1976-03-03
Publication_date: 1977-03-22
Assignee: The Boeing Company (Seattle, WA)
Primary Class(es): 4/300 4/254, 4/905
Other Classes:
US Patent Ref:

1243148

Oct, 1917

Erwin

4/254.

Other Refs: 842,422463,664

Mar, 1939	FR
Aug, 1928	DT

Primary Examiner: Smith, Robert I.
Assistant Examiner:
Attorney: Hartmann; H. Gus