US2539577A - Perambulator for invalids - Google Patents

Perambulator for invalids Download PDF

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US2539577A
US2539577A US52554A US5255448A US2539577A US 2539577 A US2539577 A US 2539577A US 52554 A US52554 A US 52554A US 5255448 A US5255448 A US 5255448A US 2539577 A US2539577 A US 2539577A
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perambulator
castors
patient
frame
seat
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Hack Nathan
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00Appliances for aiding patients or disabled persons to walk about
    • A61H3/04Wheeled walking aids for disabled persons
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H3/00Appliances for aiding patients or disabled persons to walk about
    • A61H3/04Wheeled walking aids for disabled persons
    • A61H2003/046Wheeled walking aids for disabled persons with braking means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61HPHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2201/00Characteristics of apparatus not provided for in the preceding codes
    • A61H2201/16Physical interface with patient
    • A61H2201/1602Physical interface with patient kind of interface, e.g. head rest, knee support or lumbar support
    • A61H2201/1628Pelvis
    • A61H2201/1633Seat

Definitions

  • This invention relates to improvements in perambulators for inv-alids, and more particularly to a perambulator having a frame structure within which the invalid can stand and lean upon, with a seat, when desired, upon which to sit at will, said perambulator having castors upon which it can be moved around over the floor, with means for locking said castors against turning whenever desired.
  • a sectional frame structure in which different sections can be detached or removed to reduce the height of the frame
  • a type of frame structure which can be moved up to a bed with a part running under the bed, while the upper portions of said frame extended over the bed and in convenient position for the patient to lift himself from the bed into position to make full use of the perambulator in moving from place to place
  • Figure 1 is a perspective view of a perambulator embodying my invention
  • Figure 2 is a side elevation of a supporting castor, showing an eccentric brake or locking member
  • Figure 3 is a plan view of one of the rear castors, showing a brake or look operating connection
  • Figure 4 shows three plan views, in three different positions, of one of the front castors with its locking means
  • Figure 5 is a sectional view of a detail, taken on the line 5-5, of Fig. 1; I
  • Figure 6 is an enlarged view, partly in section, taken on the line 66 of Fig. 1;
  • Figure 7 is a fragmentary view of mechanism shown in Fig. 6; v y
  • Figure 8 is a sectional detail of parts in Fig. 6, taken on line 8-43;
  • Figure 9 is a plan view looking at the mechanism for turning the castors and also for operating the locking means for said castors;
  • Figure 10 is a sectional view through line IIl-I0 on Fig. 9.
  • my invention as here illustrated for explanatory purposes, includes a frame body structure having an upper horizontal U-frame member I I and a lower longer U-form member I2, connected by the vertical frame members I3, I3, at the corners with the curved brace members I4, I4, said longer U-frame member I2 being extended and provided with vertical tubular bearing members I5, I5, having rotatably mounted therein castors, as I6, I fijsaid castors each having mounted thereon, as seen in large View in Fi 2, a supportin arm or member I1, in the outer free end of which is a vertical shaft I8, having secured to its lower end an eccentric castor brake or look member I9, to be turned into and out of engagement with the castor wheel I B.
  • a bar 20 Inserted through the shaft I8, of the brake element or member I9, is a bar 20, one end of which has attached thereto a coiled spring 2I, having its other end attached to the member I1, as at 2
  • This coiled spring '2I normally holds the eccentric member I9 in its inoperative position, as indicated in light broken lines in Fig. 3.
  • the other end of said bar or member 20 has an operating cable 22 attached thereto, which cable 22 extends around a pulley 23, on a vertical member I 3, thence across to another pulley 24, on the other vertical member I3, and thence to a corresponding bar or member 20 on the other castor, whereby said shafts I8, I8 and their eccentric elements I9, I9 can be operated together on the castor wheels I6, I6, as is clear from Figs. 1, 2 and 3.
  • At the lower ends of the vertical members I3, I3, at the forward end of the perambulator are two other castors, as 25, 25, on which are members 26, '26, similar to the members I1, I1 on the rearward castors.
  • These castors also have eccentric brake or lock elements 21, 21, on angle ends 28 of a connecting rod 29, which angle ends extend through the free ends of said members 26, '26, as shown and similar to the short shafts I8, I8 of the rear castors I6, I6.
  • Fig. 4 are shown in plan views, three different positions of said castor mechanism. In these three positions the castor wheel is shown in light broken lines, as 25. In the middle position, the castor wheel is shown in light broken lines, as 25. In the middle position, the castor wheel is shown in light broken lines, as 25. In the middle position, the castor wheel is shown in light broken lines, as 25. In the middle position, the castor wheel is shown in light broken lines, as 25. In the middle position, the
  • eccentric brake or locking element 21 is shown out of operating position relative to the wheel 25', while in the other two positions, representing the extreme opposite positions, said eccentric elements 21 are in operating engagement with the castor wheels 25 at the opposite corners 01:,
  • Said rod 31 is reduced at its upper end, as at 3
  • a spring 35 is also mounted on the reduced end 3
  • Said spring member 35 carries a stud or pin 38, operating through a hole 39 in the member 33, and is adapted to enter holes at and 4! in the fixed plate 32, when said member 33 is turned to the opposite sides thereof, which will result in moving the connecting rod 29 and turning the castors to the extreme side positions shown in Fig. 4.
  • a depending lever 42 is also pivotally connected with said upper U-frame member H, to which a cable :33 is attached, with its other end connected at Q3 with the cable 22, for pulling said cable '22, for the purpose of operating the eccentric braiie or locking elements is, it, against the rear castor wheels, as will be understood from Figs. 1 and 3.
  • a cable :33 is attached, with its other end connected at Q3 with the cable 22, for pulling said cable '22, for the purpose of operating the eccentric braiie or locking elements is, it, against the rear castor wheels, as will be understood from Figs. 1 and 3.
  • Above the upper U-frame i i are three detachable U-frames A l, 45, and 55, each having legs as 44', 55 and i3 detachably fitting with the one below, as at Al in all places.
  • this patient supporting structure of U-frames can be built up as high as may be required for a particular person who is to use it.
  • crutch member 48 adjustably and detachably secured to the U-frame H, by means of a clamp as will be understood from the showing in Fig. 1.
  • This crutch can'be positioned for the most comfortable use of the patient, Said crutch member has an arm .rest 55 and a hand grip which is adjustable up and down and circumferentially, for the convenience of the person using it.
  • a seat 52 which is pivotally and hingedly held at its left end.
  • Two arch sup ports, as 53 and 5d, are detachably secured at their lower ends to the rear ends of the lower U-frame i2, as at 53' and 54, Fig. 1, whereby the entire seat and its supports can be detached and removed whenever desired, thus giving free space for walking.
  • the forward edge of said seat is provided with a thicker portion, as 52, which fits into an opening 55 in said arch -support 54, as seen in Fig. 5.
  • said seat s2 At its opposite end said seat s2 is provided with 'a pair of lugs, on its under side, as 5'5, 5'5, secured thereto and through which a pivot pin 58 is inserted, said pin serving as a hinge pin for said seat when it is raised at its forward edge, as seen in Fig. 8, in light broken lines.
  • a block member 58 is shown welded to said pin 58, under said'seat, Fig. 6.
  • the end of said pin 58 is provided with 'a head 55, to interfit with a corresponding head 59', with a spring 56, on a connecting bolt 5 l to yieldingly hold said heads together, with sufficient firmness to support the free end of the seat 52 when it is swung backward on the pivot support formed by the angle part 32, in two spaced hinge lugs, as $3,
  • heads 59, and 55' is an angular interfitting and interlocking feature, designated 64, and seen in Fig. 7 and Fig. 6. This increases the supporting strength of the seat 52 when the free end thereof is swung backward and around to the left, and at the same time makes it possible to raise the free end of said seat by increased force to overcome the tension of the spring 60 and the interfitting element at 64.
  • a perambulator of the character referred to upper and lower horizontal U-shaped frame members supported one above the other at their connected ends, whereby their straight ends are open and are free to be moved under and over a bed, into convenient position for a patient, castors on said perambulator, means for locking the castor wheels against turning to prevent said perambulator from moving, a seat on the ends of the lower U-shaped frame member, under the free end of the upper U-shaped frame member, said seat being movable on a hinge to open up entrance into the open ends of said U-shaped frame members by the patient, said upper U-shaped frame members constituting supporting means for the arms of the patient at opposite sides, whereby the patient can stand in said U-shaped frame members, or sit upon the seat with his feet and legs in the U-shaped frame members.
  • a perambulator including a plurality of horizontal U-shaped frame members detachably connected one above the other, and separable to reduce the height of the U-shaped structure, a lower horizontal U-shaped frame member, with castors supporting it, and connected at its arched end with the upper frame members for supporting them with their open ends free to move over the top of a bed as said lower U-shaped frame member is moved under said bed, an adjustable seat at the forward ends of the lower U-shaped frame member and under the free ends of the upper U-shaped frame members, locking means for each castor wheel and means for manipulating said locking means within reach of the patient, whereby he can lock said perambulator against movement at will.
  • a frame structure having castor wheels at its corners, locking members adjustably held near each castor wheel, means for movingsaid locking members into locking engagement with said castor wheels to prevent them from turning on their axis, and means for turning said castor wheels on their supporting pivots to change the direction of their movement, said frame structure being of horizontal U-shaped frame members to receive the patient between their ends, whereby the patient can lean on the opposite sides of said U-shaped frame members.
  • a perambulator for invalids including a lower frame of horizontal U-shape, having castors at its ends and at its arched portion, with means for turning said castors as to direction, locking means for each castor to be moved into locking engagement with the castor wheel to prevent it from turning on its axis, said operating means being operable by the patient, upper U-shaped frame members, detachably supported one above the other, whereby frame members can be detached at will to decrease the height of said perambulator for the convenience of-the patient, and a seat adjustably supported at the open ends of said U-shaped frame members, whereby tobe moved to admit the patient into said frame structure.
  • a vertical frame structure composed of a plurality of horizontal U-shaped frames, secured together, one above the other, with their open ends in one direction, said U-shaped frames being spaced to run under a bed and over a bed as moved up to the bed, whereby a patient can conveniently move into the open ends of said U-shaped frames, with his arms over the top frame, castor wheels under the lower frame for moving said perambulator over the floor, means for locking said castor wheels against turning on their axes and also means for locking said castor wheels in adjusted positions as to directional positions, said locking means being manually operable by the patient in said perambulator, and means whereby an upper U-shap'ed frame member can be detached to lower the vertical height of said frame members for more convenience for the patient.

Description

Jan. 30, 1951 N. HACK 2,539,577
PERAMBULATOR FOR INVALIDS Filed Oct. 2, 1948 2 Sheets-Sheet l INVEN TOR,
BY a Jan. 30, 1951 N. HACK PERAMBULATOR FOR INVALIDS Filed 001'. 2, 1948 2 Sheets-Sheet 2 I N V EN TOR,
Patented Jan. 30, 1951 UNITED STATES PATENT OFFICE PERAMBULATOR FOR INVALIDS Nathan Hack, Santa Monica, Calif.
Application October 2, 1348, Serial No. 52,554
6 Claims.
This invention relates to improvements in perambulators for inv-alids, and more particularly to a perambulator having a frame structure within which the invalid can stand and lean upon, with a seat, when desired, upon which to sit at will, said perambulator having castors upon which it can be moved around over the floor, with means for locking said castors against turning whenever desired.
Among the salient objects of the invention are: to provide a sectional frame structure in which different sections can be detached or removed to reduce the height of the frame; to provide a type of frame structure which can be moved up to a bed with a part running under the bed, while the upper portions of said frame extended over the bed and in convenient position for the patient to lift himself from the bed into position to make full use of the perambulator in moving from place to place; to provide in a perambulator of the character referred to castors on which it can 1 be moved, with locking means within easy reach of the patient whereby said castors can be locked at will against turning, thus making it stationary in any adjusted position.
Other features of improvement will be apparent from the following description of one practical embodiment of the invention, taken with the accompanying sheet of drawings, in which:
Figure 1 is a perspective view of a perambulator embodying my invention;
Figure 2 is a side elevation of a supporting castor, showing an eccentric brake or locking member;
Figure 3 is a plan view of one of the rear castors, showing a brake or look operating connection;
Figure 4 shows three plan views, in three different positions, of one of the front castors with its locking means;
Figure 5 is a sectional view of a detail, taken on the line 5-5, of Fig. 1; I
Figure 6 is an enlarged view, partly in section, taken on the line 66 of Fig. 1;
Figure 7 is a fragmentary view of mechanism shown in Fig. 6; v y
Figure 8 is a sectional detail of parts in Fig. 6, taken on line 8-43;
Figure 9 is a plan view looking at the mechanism for turning the castors and also for operating the locking means for said castors;
Figure 10 is a sectional view through line IIl-I0 on Fig. 9.
Referring now in detail to the drawings, my invention as here illustrated for explanatory purposes, includes a frame body structure having an upper horizontal U-frame member I I and a lower longer U-form member I2, connected by the vertical frame members I3, I3, at the corners with the curved brace members I4, I4, said longer U-frame member I2 being extended and provided with vertical tubular bearing members I5, I5, having rotatably mounted therein castors, as I6, I fijsaid castors each having mounted thereon, as seen in large View in Fi 2, a supportin arm or member I1, in the outer free end of which is a vertical shaft I8, having secured to its lower end an eccentric castor brake or look member I9, to be turned into and out of engagement with the castor wheel I B. Inserted through the shaft I8, of the brake element or member I9, is a bar 20, one end of which has attached thereto a coiled spring 2I, having its other end attached to the member I1, as at 2|. This coiled spring '2I normally holds the eccentric member I9 in its inoperative position, as indicated in light broken lines in Fig. 3. The other end of said bar or member 20 has an operating cable 22 attached thereto, which cable 22 extends around a pulley 23, on a vertical member I 3, thence across to another pulley 24, on the other vertical member I3, and thence to a corresponding bar or member 20 on the other castor, whereby said shafts I8, I8 and their eccentric elements I9, I9 can be operated together on the castor wheels I6, I6, as is clear from Figs. 1, 2 and 3. At the lower ends of the vertical members I3, I3, at the forward end of the perambulator, are two other castors, as 25, 25, on which are members 26, '26, similar to the members I1, I1 on the rearward castors. These castors also have eccentric brake or lock elements 21, 21, on angle ends 28 of a connecting rod 29, which angle ends extend through the free ends of said members 26, '26, as shown and similar to the short shafts I8, I8 of the rear castors I6, I6.
In Fig. 4 are shown in plan views, three different positions of said castor mechanism. In these three positions the castor wheel is shown in light broken lines, as 25. In the middle position, the
eccentric brake or locking element 21 is shown out of operating position relative to the wheel 25', while in the other two positions, representing the extreme opposite positions, said eccentric elements 21 are in operating engagement with the castor wheels 25 at the opposite corners 01:,
is rotatably held in a plate 32, Welded to the upper U-frame I l, as seen in Figs. 9 and 10. Said rod 31 is reduced at its upper end, as at 3| and has a member 33 thereon, resting on a plate 32, and provided with a handle 34, at its outer end for turning it. A spring 35 is also mounted on the reduced end 3| of said rod 3!, and held in place by means of a nut 36, with a spring washer 31 thereunder, as seen in Figs. 9 and 10. Said spring member 35 carries a stud or pin 38, operating through a hole 39 in the member 33, and is adapted to enter holes at and 4! in the fixed plate 32, when said member 33 is turned to the opposite sides thereof, which will result in moving the connecting rod 29 and turning the castors to the extreme side positions shown in Fig. 4.
Also pivotally connected with said upper U-frame member H, is a depending lever 42, to which a cable :33 is attached, with its other end connected at Q3 with the cable 22, for pulling said cable '22, for the purpose of operating the eccentric braiie or locking elements is, it, against the rear castor wheels, as will be understood from Figs. 1 and 3. 1 Above the upper U-frame i i, are three detachable U-frames A l, 45, and 55, each having legs as 44', 55 and i3 detachably fitting with the one below, as at Al in all places. Thus this patient supporting structure of U-frames can be built up as high as may be required for a particular person who is to use it.
There is also provided a crutch member 48, adjustably and detachably secured to the U-frame H, by means of a clamp as will be understood from the showing in Fig. 1. This crutch can'be positioned for the most comfortable use of the patient, Said crutch member has an arm .rest 55 and a hand grip which is adjustable up and down and circumferentially, for the convenience of the person using it.
I have also shown a seat 52, which is pivotally and hingedly held at its left end. Two arch sup ports, as 53 and 5d, are detachably secured at their lower ends to the rear ends of the lower U-frame i2, as at 53' and 54, Fig. 1, whereby the entire seat and its supports can be detached and removed whenever desired, thus giving free space for walking.
Referring to Fig. 5, said seat at its right hand end, as seen in Fig. 1, overlays and rests upon the arch support 5%, as at 55. The forward edge of said seat is provided with a thicker portion, as 52, which fits into an opening 55 in said arch -support 54, as seen in Fig. 5.
At its opposite end said seat s2 is provided with 'a pair of lugs, on its under side, as 5'5, 5'5, secured thereto and through which a pivot pin 58 is inserted, said pin serving as a hinge pin for said seat when it is raised at its forward edge, as seen in Fig. 8, in light broken lines. A block member 58 is shown welded to said pin 58, under said'seat, Fig. 6. The end of said pin 58 is provided with 'a head 55, to interfit with a corresponding head 59', with a spring 56, on a connecting bolt 5 l to yieldingly hold said heads together, with sufficient firmness to support the free end of the seat 52 when it is swung backward on the pivot support formed by the angle part 32, in two spaced hinge lugs, as $3, Between the meeting faces of said, heads 59, and 55' is an angular interfitting and interlocking feature, designated 64, and seen in Fig. 7 and Fig. 6. This increases the supporting strength of the seat 52 when the free end thereof is swung backward and around to the left, and at the same time makes it possible to raise the free end of said seat by increased force to overcome the tension of the spring 60 and the interfitting element at 64.
I am aware that changes in details of construction and arrangement can be made without departing from the spirit of my invention, and I do not, therefore, limit the invention to the showing made for purposes of explanation, except as I may be limited by the hereto appended claims forming a part of this applicationv I claim:
1. In a perambulator of the character referred to, upper and lower horizontal U-shaped frame members supported one above the other at their connected ends, whereby their straight ends are open and are free to be moved under and over a bed, into convenient position for a patient, castors on said perambulator, means for locking the castor wheels against turning to prevent said perambulator from moving, a seat on the ends of the lower U-shaped frame member, under the free end of the upper U-shaped frame member, said seat being movable on a hinge to open up entrance into the open ends of said U-shaped frame members by the patient, said upper U-shaped frame members constituting supporting means for the arms of the patient at opposite sides, whereby the patient can stand in said U-shaped frame members, or sit upon the seat with his feet and legs in the U-shaped frame members.
2. A perambulator including a plurality of horizontal U-shaped frame members detachably connected one above the other, and separable to reduce the height of the U-shaped structure, a lower horizontal U-shaped frame member, with castors supporting it, and connected at its arched end with the upper frame members for supporting them with their open ends free to move over the top of a bed as said lower U-shaped frame member is moved under said bed, an adjustable seat at the forward ends of the lower U-shaped frame member and under the free ends of the upper U-shaped frame members, locking means for each castor wheel and means for manipulating said locking means within reach of the patient, whereby he can lock said perambulator against movement at will.
3. In a perambulator, a frame structure having castor wheels at its corners, locking members adjustably held near each castor wheel, means for movingsaid locking members into locking engagement with said castor wheels to prevent them from turning on their axis, and means for turning said castor wheels on their supporting pivots to change the direction of their movement, said frame structure being of horizontal U-shaped frame members to receive the patient between their ends, whereby the patient can lean on the opposite sides of said U-shaped frame members. 7
4. A perambulator for invalids including a lower frame of horizontal U-shape, having castors at its ends and at its arched portion, with means for turning said castors as to direction, locking means for each castor to be moved into locking engagement with the castor wheel to prevent it from turning on its axis, said operating means being operable by the patient, upper U-shaped frame members, detachably supported one above the other, whereby frame members can be detached at will to decrease the height of said perambulator for the convenience of-the patient, and a seat adjustably supported at the open ends of said U-shaped frame members, whereby tobe moved to admit the patient into said frame structure.
5. In a perambulator of the character shown, a vertical frame structure composed of a plurality of horizontal U-shaped frames, secured together, one above the other, with their open ends in one direction, said U-shaped frames being spaced to run under a bed and over a bed as moved up to the bed, whereby a patient can conveniently move into the open ends of said U-shaped frames, with his arms over the top frame, castor wheels under the lower frame for moving said perambulator over the floor, means for locking said castor wheels against turning on their axes and also means for locking said castor wheels in adjusted positions as to directional positions, said locking means being manually operable by the patient in said perambulator, and means whereby an upper U-shap'ed frame member can be detached to lower the vertical height of said frame members for more convenience for the patient.
6. In a perambulator, a plurality of horizontal U-shaped frames, connected together one above the other to receive a patient in said U-shaped frames with his arms over the top frame, castor REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 2,096,229 Dudley Oct. 19, 1937 2,114,586 Bowen Apr. 19, 1938 2,374,182 Duke Jan. 11, 1945 2,439,163 Farmer Apr. 6, 1948 FOREIGN PATENTS Number Country Date 301,958 Great Britain Dec. 10, 1928
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3189345A (en) * 1962-10-02 1965-06-15 Seven E Corp Walker and lifting device
US3256035A (en) * 1965-03-15 1966-06-14 Garringer Frank Walker for invalids
US3270353A (en) * 1965-05-10 1966-09-06 Century Mfg Co Sectional wheel chair assembly
US3474993A (en) * 1967-03-23 1969-10-28 Charles E Murcott Workbench underarm devices for invalid support
US4068857A (en) * 1974-04-30 1978-01-17 Sven Arne Lennart Karlsson Apparatus enabling disabled persons to move independently
US5133377A (en) * 1990-12-05 1992-07-28 Truxillo Peter L Invalid walker
US5251862A (en) * 1991-12-06 1993-10-12 Walter Raymond Transporting and lifting apparatus and methods for aiding handicapped individuals

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB301958A (en) * 1927-09-09 1928-12-10 Sydney Hodges Improvements relating to lifting apparatus
US2096229A (en) * 1936-08-03 1937-10-19 John A Dudley Caster brake
US2114586A (en) * 1936-10-16 1938-04-19 Charles Bond Caster control means for movable trucks and the like
US2374182A (en) * 1942-03-16 1945-04-24 Duke Sam Invalid walker
US2439163A (en) * 1946-09-18 1948-04-06 Melvin M Farmer Invalid transfer device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB301958A (en) * 1927-09-09 1928-12-10 Sydney Hodges Improvements relating to lifting apparatus
US2096229A (en) * 1936-08-03 1937-10-19 John A Dudley Caster brake
US2114586A (en) * 1936-10-16 1938-04-19 Charles Bond Caster control means for movable trucks and the like
US2374182A (en) * 1942-03-16 1945-04-24 Duke Sam Invalid walker
US2439163A (en) * 1946-09-18 1948-04-06 Melvin M Farmer Invalid transfer device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3189345A (en) * 1962-10-02 1965-06-15 Seven E Corp Walker and lifting device
US3256035A (en) * 1965-03-15 1966-06-14 Garringer Frank Walker for invalids
US3270353A (en) * 1965-05-10 1966-09-06 Century Mfg Co Sectional wheel chair assembly
US3474993A (en) * 1967-03-23 1969-10-28 Charles E Murcott Workbench underarm devices for invalid support
US4068857A (en) * 1974-04-30 1978-01-17 Sven Arne Lennart Karlsson Apparatus enabling disabled persons to move independently
US5133377A (en) * 1990-12-05 1992-07-28 Truxillo Peter L Invalid walker
US5251862A (en) * 1991-12-06 1993-10-12 Walter Raymond Transporting and lifting apparatus and methods for aiding handicapped individuals

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