US3925833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable electric hydraulic johnny aid
Assignee: Individual
•
Filing: 1974-03-08
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Granted: 1975-12-16
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Expires: 1994-03-08
Abstract
Abstract A hoist assembly consisting of a frame with a vertically movable toilet seat and hydraulic cylinder means for raising and lowering the seat under the control of its occupant. The assembly is designed to be positioned over a conventional toilet bowl and is employed for easing infirm persons onto and off the toilet bowl.
Inventors
- 👤 Australia Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:51
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/10; A61G7/1001; A61G7/1007; A61G7/1013; A61G7/1019; A61G7/1073; A61G7/1082; A61G7/1094; A61G5/00; A61G5/10; A61G5/14; Y; Y10; Y10S; Y10S297/00; Y10S297/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
241 words
A transfer device to assist an infirm person in using a toilet bowl, comprising frame means arranged to be positioned over a toilet bowl, said frame means including a U-shaped horizontal base member with the opening in the U-shaped base member being in the rear thereof for receiving a toilet bowl, a toilet seat means, said U-shaped base member having upstanding vertical support elements on opposite side portions of said Ushaped base member adjacent the opening therein, respective movable side frame members slidably interengaged with said support elements, means to secure the toilet seat means to said side frame members, means to constrain said side frame members to upward and downward vertical movement relative to said base member, whereby said toilet seat means is constrained to upward and downward movement in a straight line relative to said base member, reciprocating drive means on said frame means, means connecting said drive means to said toilet seat means and being arranged to move the toilet seat means vertically responsive to energization of said drive means, and means to selectively energize said drive means for upward and downward movement of the toilet seat means, whereby to assist an infirm person using the device to assume a standing position from a sitting position, and vice versa, without forward or rearward movement while maintaining the toilet seat means horizontal and enabling the person to maintain supportive contact with the forward edge of the toilet seat means.
Claim 2
Dependent Claim
241 words
A transfer device to assist an infirm person in using a toilet bowl, comprising frame means arranged to be positioned over a toilet bowl, said frame means including a U-shaped horizontal base member with the opening in the U-shaped base member being in the rear thereof for receiving a toilet bowl, a toilet seat means, said U-shaped base member having upstanding vertical support elements on opposite side portions of said Ushaped base member adjacent the opening therein, respective movable side frame members slidably interengaged with said support elements, means to secure the toilet seat means to said side frame members, means to constrain said side frame members to upward and downward vertical movement relative to said base member, whereby said toilet seat means is constrained to upward and downward movement in a straight line relative to said base member, reciprocating drive means on said frame means, means connecting said drive means to said toilet seat means and being arranged to move the toilet seat means vertically responsive to energization of said drive means, and means to selectively energize said drive means for upward and downward movement of the toilet seat means, whereby to assist an infirm person using the device to assume a standing position from a sitting position, and vice versa, without forward or rearward movement while maintaining the toilet seat means horizontal and enabling the person to maintain supportive contact with the forward edge of the toilet seat means.
Claim 3
Dependent Claim
45 words
The transfer device of claim 2, and wherein said reciprocating drive means includes fluid pressure cylinder means comprising a cylinder having a piston provided with a piston rod, and means connecting said cyinder and piston rod between a side frame member and said base member.
Claim 4
Dependent Claim
42 words
The transfer device of claim 1, and wherein said reciprocating drive means comprises respective fluid cylinders connected to the side frame members, said cylinders having pistons provided with downwardly extending piston rods, and means connecting the piston rods to said base member.
Claim 5
Dependent Claim
37 words
The transfer device of claim 3, and wherein said vertical support elements comprise channel bars of substantially C-shaped cross section and said side frame members are each provided with guide rollers retentively engaged in said channel bars.
Claim 6
Dependent Claim
51 words
The transfer device of claim 1, wherein said side frame members comprise sleeve-like members and wherein the means to secure toilet seat means to said side frame members comprises cross bar means rigidly connected between the sleeve-like members, and means to connect the toilet seat means to said cross bar means.
Claim 7
Dependent Claim
36 words
The transfer device of claim 5, and a fowardly extending U-shaped support member rigidly connected to said crossbar means and having its bight portion located to supportingly underlie the forward portion of the toilet seat means.
Claim 8
Dependent Claim
84 words
The transfer device of claim 5, and wherein said reciprocating drive means comprises respective fluid cylinders mounted in the sleeve-like side frame members, said cylinders having pistons provided with downwardly extending piston rods, and means connecting said piston rods to the base member, and wherein said means to selectively energize the drive means comprises a fluid pump means mounted on the frame means, and control means to selectively connect the output of the pump means to the lower and upper portions of the cylinders.
Claim 9
Dependent Claim
65 words
The transfer device of claim 7, and wherein said control means comprises a handle member pivoted on a side portion of said U-shaped support member, reversing valve means, conduit means connecting said pump means to said lower and upper portions of the cylinders through said reversing valve means, said valve means having an operating lever, and means connecting said handle member to said operating lever.
Claim 10
Dependent Claim
42 words
The transfer device of claim 8, and wherein said pump means is provided with an electric driving motor, said motor having an energizing circuit including control switch means, and means operating said switch means responsive to pivotal movement of said handle member.
Claim 11
Dependent Claim
20 words
The transfer device of claim 8, and a fixed handle on the opposite side portion of the U-shaped support member.
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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) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |