US3631546A - Device for optional coupling of a stretcher with different implements - Google Patents

Device for optional coupling of a stretcher with different implements Download PDF

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Publication number
US3631546A
US3631546A US3631546DA US3631546A US 3631546 A US3631546 A US 3631546A US 3631546D A US3631546D A US 3631546DA US 3631546 A US3631546 A US 3631546A
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United States
Prior art keywords
stretcher
cylinders
cylinder
recesses
supporting member
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
Kurt Arnold Eliasson
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HYDRAUL VERKEN AB
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HYDRAUL VERKEN AB
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Publication date
Priority to SE351469A priority Critical patent/SE329467B/xx
Application filed by HYDRAUL VERKEN AB filed Critical HYDRAUL VERKEN AB
Application granted granted Critical
Publication of US3631546A publication Critical patent/US3631546A/en
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Application status is Expired - Lifetime legal-status Critical

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1013Lifting of patients by
    • A61G7/1019Vertical extending columns or mechanisms
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/104Devices carried or supported by
    • A61G7/1044Stationary fixed means, e.g. fixed to a surface or bed
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/104Devices carried or supported by
    • A61G7/1046Mobile bases, e.g. having wheels
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1049Attachment, suspending or supporting means for patients
    • A61G7/1057Supported platforms, frames or sheets for patient in lying position
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1073Parts, details or accessories
    • A61G7/1076Means for rotating around a vertical axis
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2200/00Information related to the kind of patient or his position
    • A61G2200/30Specific positions of the patient
    • A61G2200/32Specific positions of the patient lying
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2203/00General characteristics of devices
    • A61G2203/70General characteristics of devices with special adaptations, e.g. for safety or comfort
    • A61G2203/80General characteristics of devices with special adaptations, e.g. for safety or comfort for connecting a trolley to a device, e.g. bed or column table

Abstract

This invention concerns a device for optionally coupling a stretcher with different implements permitting the releasing of the stretcher from one implement and the coupling of the stretcher with another implement, to which it is to be transferred, to be performed simultaneously without passing an intermediate position in which the stretcher is disconnected from both implements. For this purpose the invention is characterized in that the stretcher has two transverse cylinders, of which one is mounted for eccentric rotation so as to permit to vary the space between the cylinders by rotation of the eccentric cylinder. One of the implements has a member with two cylindrical recesses in its end edge portions to be engaged by the cylinders in their closest position. The other implement has a fork-shaped support with cylindrical recesses in the sides of the fork legs to be engaged by the cylinders in their most spaced-apart position, the eccentricity of the eccentric cylinder and the spacing of the cylinders and recesses being such that when transferring the eccentric cylinder from its engagement with one implement to the other, said other implement is at least partially engaged before the first implement is entirely released.

Description

United States Patent [72] Inventor Kurt Arnold Eliasson Alingsas, Sweden [21] Appl. No. 16,724 [22] Filed Mar. 5, 1970 [45] Patented Jan. 4, 1972 [73] Assignee AB I-lydraul-Verken Alingsas, Sweden [32] Priority Mar. 13, 1969 [3 3] Sweden [3 1 3514/69 [54] DEVICE FOR OPTIONAL COUPLING OF A STRETCHER WITH DIFFERENT IMPLEMENTS 4 Claims, 5 Drawing Figs.

[52] U.S.Cl 5/81, 5/86, 214/38 CC, 269/323 [51] Int. Cl A6lg 7/10, A61 g 1/02, A47b 83/04 [50] Field of Search 5/81, 82, 86, 87, 89; 269/17, 79, 229, 235, 236, 323-328; 214/38 CC, 38 D [56] References Cited UNITED STATES PATENTS 214/38 CC 5/86X Primary Examiner-Casmir A. Nunberg AttorneyErnest F. Marmorek ABSTRACT: This invention concerns a device for optionally coupling a stretcher with different implements permitting the releasing of the stretcher from one implement and the coupling of the stretcher with another implement, to which it is to be transferred, to be performed simultaneously without passing an intermediate position in which the stretcher is disconnected from both implements. For this purpose the invention is characterized in that the stretcher has two transverse cylinders, of which one is mounted for eccentric rotation so as to permit to vary the space between the cylinders by rotation of the eccentric cylinder. One of the implements has a member with two cylindrical recesses in its end edge portions to be engaged by the cylinders in their closest position. The other implement has a fork-shaped support with cylindrical recesses in the sides of the fork legs to be engaged by the cylinders in their most spaced-apart position, the eccentricity of the eccentric cylinder and the spacing of the cylinders and recesses being such that when transferring the eccentric cylinder from its engagement with one implement to the other,

2,680,459 6/1954 eta] 269/235 said other implement is at least partially engaged before the 3,451,070 6/1969 Danrelson 5/86 X fi tim lemem i entirely released,

I I I I I a i I I 10 I F 5 l HI l1J= i I l: I L g- I I 49 :i l I i' a M :I 2 L DEVllCE FUR (DONAL CGUPLHNG UK A STCHIER s i ii DEFFEKENT ELEMENTS The present invention concerns a device for the optional coupling of a stretcher with different implements, such as a stretcher carriage and a lifting device. in the care in a hospital, in order to permit the transfer of a patient from a bed to a bath or to an operation table itis of greatest importance that the transfer can be made without the risk that the stretcher can loosen or be tilted, especially for the transfer from one implement to another. The transport from one section of a hospital to another is always performed by means of a stretcher carriage mounted on wheels, on which the stretcher is locked into position. In order to enable the stretcher to be sunk into a bath it is necessary to transfer it to a lifting device. It is a purpose of the invention to provide a coupling device so constructed that the stretcher cannot be released from one implement before coupling members on the other implement have taken over the locking action and that the releasing and locking can be effected with one single movement without any unstable intermediate position.

The invention is characterized in that the stretcher has transverse cylinders, of which one is journaled excentrically so that the space between the sides of the cylinders turned away from or facing each other can be varied, that the one implement has a plate or frame orthe like, the end edges of which have recesses for the cylinders, and that the other implement has a fork-shaped support with corresponding recesses on the sides of the fork leg facing each other, the cylinders, upon rotation of the excentric cylinder in one direction or the other, optionally engaging and clamping the frame between them or gripping the fork legs simultaneously as the stretcher is released from the fork legs or the frame, respectively.

The invention is described in the following with reference to the accompanying drawings, in which FIG. i is a side view of a stretcher placed on a stretcher carriage in position ready for the transfer to a lifting device.

FIG. 2 shows a section along line llll in FIG. 3 through the locking device and the cooperating parts on the stretcher carriage and the lifting device.

MG. 3 shows a section along line Ill-III in FIG. 2.

FIGS. 41 and 5 show sections corresponding to FIG. 2 but with the locking device in different coupling positions.

The stretcher carriage comprises a frame 2 mounted on wheels 1 and comprising a vertical standard 3 formed as a hydraulic cylinder with a piston rod 4, which can be hoisted and lowered by means of a pump mounted on the frame. n the upper end of the piston rod is mounted a plate supporting a frame 6 which can be swung relative to the plate about a pivot 7 mounted on its one end wge, whereby an inclination of a few degrees can be obtained by means of a knee link 8 provided at the other end edge, and permitting to lower the frame 6 onto the plate 5 or to maintain the frame 6 in an inclined position by means of a lever 9.

The stretcher it) has in its median part bearing supports 1 I 12 extending downwards from the underside, in which transverse cylinders 13, M are rotatably mounted. One cylinder M is excentric relative to its axis of rotation and is rotatable by means of an operating lever H5. The cylinders l3, 114 are preferably of steel and the cylinder 14 is surrounded by a sleeve to freely rotatable thereon. This sleeve can be of resilient material, such as rubber, plastic material or the like. By rotating the excentric cylinder in one direction or the other, the space between the cylinders can be increased or reduced.

In the end edge faces of the frame 6 there are shallow cylindrical recesses l7, 18 for the cylinders l3, 14, the space between the recesses being somewhat less than the space between the sides of the cylinders facing each other when the excentric cylinder 14 is in its middle position.

The lifting device shown in FIG. ll, which can be used for lowering the stretcher into a bath or the like, comprises a vertical hydraulic cylinder 19 enclosing a piston with a piston rod 20 supporting at its upper end a rotatable head 21 with a downwards extending supporting ann 22, formed at its lower end into a fork with horizontal fork legs 23 presenting cylindrical recesses 24, 2f for the cylinders 13, it on their sides facing each other, the space between said recesses being somewhat larger than the distance between the sides of the cylinders turned away from each other when the excentric cylinder is in its middle position.

The device just described works as follows. When the stretcher is to be coupled to the stretcher carriage the excentric cylinder 14 is turned by means of the lever 15 so that the distance between the rollers becomes larger than the space between the end edges of the frame a so that the stretcher can be freely put down onto the latter with the cylinders facing the recesses l7, 18. When the excentric M is turned and the space between the cylinders is thereby reduced, the cylinders engage the recesses l7 and i8 and are pressed against the frame 6 on the stretcher carriage, so that the stretcher is fixedly secured thereon.

For the transfer of the stretcher it from the stretcher carriage to the lifting device, the fork legs 23 are exactly adjusted at the same level as the cylinder l3, l4 and the stretcher carriage is moved in over the fork legs so that the recesses 24, 25 are placed opposite the cylinders, which can be facilitated by means of an abutment provided on the supporting arm. In the beginning of the turning of the operating lever 15, the grip on the frame 6 is released but since the recesses are cylindrical the stretcher cannot tilt and upon continued turning of the lever the sleeve 16 comes into contact with the edge of the recess 25 on the leg 23 of the supporting arm so that the stretcher is moved longitudinally and the cylinder 13 engages the recess in the abutment surface 24 before the grip on the frame 6 is entirely released (FIG. 3). The lever 15 is turned further on until the cylinders have taken their positions illustrated in FIG. 4, in which they are pressed outwards against the legs 23 and maintain the stretcher l0 fixedly engaged simultaneously as the latter is entirely released from the stretcher carriage and the latter can be moved away.

Since the excentric cylinder 14 during rotation moves in a circular path and the contact with the corresponding recess is made first with the border edge 26 thereof, the torque necessary for turning the cylinder 14 into its end position would become very large without the sleeve 16, which upon contact with the edge 26 is stopped, so that thefexcentric cylinder 14 upon further rotation slides within the sleeve 16, which thereby can roll down into the recess 25. The coupling is therefore effected smoothly and without the torque becoming too large in spite of a great locking force. The conditions are the same when the cylinders are pressed against the frame 6.

The locking device above described is very simple and reliable and permits a rapid transfer from one implement to another, there being no risk for the stretcher in any position to be released without a corresponding locking being simultaneously effected.

What I claim is:

1. A device for the optional coupling :of a stretcher to different implements comprising, in combination,

two locking cylinders secured to said stretcher, and substantially parallel to each other,

at least one of said cylinders being excentrically rotatable,

so that the distance between the cylinders is variable,

an implement including an inner supporting member defining first recesses for the cylinders, the distance between said first recesses being such as to allow a passage of said inner supporting member between said locking cylinders when said excentrically rotatable cylinder is turned away from the other cylinder, and locking said inner supporting member when said excentrically rotatably cylinder is turned towards said other cylinder, and another implement including a fork-shaped supporting member having corresponding second recesses for said cylinder on the sides of the fork legs turned towards each other, the distance between said second recesses being such that said cylinders upon rotation of the exbentrically rotatable mounted on said plate, so that said frame can be inclined with respect to said plate, and the ends of said frame being provided with said first recesses.

43. A device as claimed in claim 3, wherein said inner supporting member is operatively mounted on a stretcher carrier, and said fork-shaped supporting member is operatively connected to a stretcher-lifting device.

I? k t t t

Claims (4)

1. A device for the optional coupling of a stretcher to different implements comprising, in combination, two locking cylinders secured to said stretcher, and substantially parallel to each other, at least one of said cylinders being excentrically rotatable, so that the distance between the cylinders is variable, an implement including an inner supporting member defining first recesses for the cylinders, the distance between said first recesses being such as to allow a passage of said inner supporting member between said locking cylinders when said excentrically rotatable cylinder is turned away from the other cylinder, and locking said inner supporting member when said excentrically rotatably cylinder is turned towards said other cylinder, and another implement including a fork-shaped supporting member having corresponding second recesses for said cylinder on the sides of the fork legs turned towards each other, the distance between said second recesses being such that said cylinders upon rotation of the excentrically rotatable cylinder in one direction fixedly engage the fork legs simultaneously as the stretcher is released from said inner supporting member.
2. A device as claimed in claim 1, characterized in that the excentric cylinder is enclosed in a sleeve freely rotatable thereon.
3. A device as claimed in claim 1, characterized in that said inner supporting member includes a plate, a frame pivotally mounted on said plate, so that said frame can be inclined with respect to said plate, and the ends of said frame being provided with said first recesses.
4. A device as claimed in claim 3, wherein said inner supporting member is operatively mounted on a stretcher carrier, and said fork-shaped supporting member is operatively connected to a stretcher-lifting device.
US3631546D 1969-03-13 1970-03-05 Device for optional coupling of a stretcher with different implements Expired - Lifetime US3631546A (en)

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Application Number Priority Date Filing Date Title
SE351469A SE329467B (en) 1969-03-13 1969-03-13

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US3631546A true US3631546A (en) 1972-01-04

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US (1) US3631546A (en)
CH (1) CH505619A (en)
DE (1) DE2009479C3 (en)
DK (1) DK121452B (en)
FI (1) FI44667C (en)
FR (1) FR2037957A5 (en)
GB (1) GB1296124A (en)
NL (1) NL159279B (en)
NO (1) NO122548B (en)
SE (1) SE329467B (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842449A (en) * 1972-08-09 1974-10-22 Geurtsen Bv Transport apparatuses for bedridden persons
US4277218A (en) * 1978-03-20 1981-07-07 Siemens Aktiengesellschaft Examination installation
WO1987003193A1 (en) * 1985-11-25 1987-06-04 Arjo Hospital Equipment Ab Coupling device for coupling an object, especially a seat or table device, with a first and a second holder
US5083331A (en) * 1990-05-14 1992-01-28 Stierlen-Maquet Ag Mobile patient support system
US5239713A (en) * 1989-10-27 1993-08-31 Ahlstrom Consumer Products, Ltd. Hospital bed
US5306109A (en) * 1991-04-23 1994-04-26 Kreuzer Gmbh & Co. Ohg Transportable medical apparatus, in particular infusion supply
GB2394412A (en) * 2002-08-21 2004-04-28 Siemens Ag Patient trolley with interchangeable stretcher
WO2011088169A1 (en) * 2010-01-13 2011-07-21 Ferno-Washington, Inc. Powered roll-in cots
US20140359940A1 (en) * 2005-12-05 2014-12-11 Ahlman Ip, Llc Patient Single Surface System
US9174249B2 (en) 2012-12-12 2015-11-03 Lam Research Corporation Ultrasonic cleaning method and apparatus therefore
USD742794S1 (en) 2013-06-17 2015-11-10 Ferno-Washington, Inc. Patient transport device
US9248062B2 (en) 2012-07-20 2016-02-02 Ferno-Washington, Inc. Automated systems for powered cots
USD749014S1 (en) 2013-06-17 2016-02-09 Ferno-Washington, Inc. Legs of a patient transport device
USD751000S1 (en) 2013-06-17 2016-03-08 Ferno-Washington, Inc. Control panel of a patient transport device having surface ornamentation
US9510982B2 (en) 2010-01-13 2016-12-06 Ferno-Washington, Inc. Powered roll-in cots
US9999555B2 (en) 2013-02-27 2018-06-19 Ferno-Washington, Inc. Powered roll-in cots having wheel alignment mechanisms
US10045894B2 (en) 2013-11-15 2018-08-14 Ferno-Washington, Inc. Self-actuating cots
US10543136B2 (en) 2012-12-04 2020-01-28 Ferno-Washington, Inc. Side arm extensions and mattress attachment components for patient transport devices

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2680459A (en) * 1950-10-17 1954-06-08 Du Pont Cam actuated construction clamp
US2812974A (en) * 1955-09-22 1957-11-12 Hubert J Mchugh Removable transport-container locking mechanism
US3270353A (en) * 1965-05-10 1966-09-06 Century Mfg Co Sectional wheel chair assembly
US3451070A (en) * 1967-01-16 1969-06-24 Harry A Danielson Patient transporting and lifting device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2680459A (en) * 1950-10-17 1954-06-08 Du Pont Cam actuated construction clamp
US2812974A (en) * 1955-09-22 1957-11-12 Hubert J Mchugh Removable transport-container locking mechanism
US3270353A (en) * 1965-05-10 1966-09-06 Century Mfg Co Sectional wheel chair assembly
US3451070A (en) * 1967-01-16 1969-06-24 Harry A Danielson Patient transporting and lifting device

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3842449A (en) * 1972-08-09 1974-10-22 Geurtsen Bv Transport apparatuses for bedridden persons
US4277218A (en) * 1978-03-20 1981-07-07 Siemens Aktiengesellschaft Examination installation
WO1987003193A1 (en) * 1985-11-25 1987-06-04 Arjo Hospital Equipment Ab Coupling device for coupling an object, especially a seat or table device, with a first and a second holder
US5239713A (en) * 1989-10-27 1993-08-31 Ahlstrom Consumer Products, Ltd. Hospital bed
US5083331A (en) * 1990-05-14 1992-01-28 Stierlen-Maquet Ag Mobile patient support system
US5306109A (en) * 1991-04-23 1994-04-26 Kreuzer Gmbh & Co. Ohg Transportable medical apparatus, in particular infusion supply
GB2394412B (en) * 2002-08-21 2005-09-07 Siemens Ag Patient trolley
GB2394412A (en) * 2002-08-21 2004-04-28 Siemens Ag Patient trolley with interchangeable stretcher
US20040111800A1 (en) * 2002-08-21 2004-06-17 Frank Bartels Patient gurney for use with multiple, different patient support boards
US20140359940A1 (en) * 2005-12-05 2014-12-11 Ahlman Ip, Llc Patient Single Surface System
WO2011088169A1 (en) * 2010-01-13 2011-07-21 Ferno-Washington, Inc. Powered roll-in cots
US20130168987A1 (en) * 2010-01-13 2013-07-04 Ferno-Washington, Inc. Powered roll-in cots
US10335329B2 (en) 2010-01-13 2019-07-02 Ferno-Washington, Inc. Powered cots
US10098796B2 (en) 2010-01-13 2018-10-16 Ferno-Washington, Inc. Powered roll-in cots
US9510982B2 (en) 2010-01-13 2016-12-06 Ferno-Washington, Inc. Powered roll-in cots
US9233033B2 (en) * 2010-01-13 2016-01-12 Ferno-Washington, Inc. Powered cot
US9248062B2 (en) 2012-07-20 2016-02-02 Ferno-Washington, Inc. Automated systems for powered cots
US10512570B2 (en) 2012-07-20 2019-12-24 Ferno-Washington, Inc. Automated systems for powered cots
US10543136B2 (en) 2012-12-04 2020-01-28 Ferno-Washington, Inc. Side arm extensions and mattress attachment components for patient transport devices
US9364870B2 (en) 2012-12-12 2016-06-14 Lam Research Corporation Ultrasonic cleaning method and apparatus therefore
US9174249B2 (en) 2012-12-12 2015-11-03 Lam Research Corporation Ultrasonic cleaning method and apparatus therefore
US10391006B2 (en) 2013-02-27 2019-08-27 Ferno-Washington, Inc. Powered roll-in cots having wheel alignment mechanisms
US9999555B2 (en) 2013-02-27 2018-06-19 Ferno-Washington, Inc. Powered roll-in cots having wheel alignment mechanisms
USD749014S1 (en) 2013-06-17 2016-02-09 Ferno-Washington, Inc. Legs of a patient transport device
USD751000S1 (en) 2013-06-17 2016-03-08 Ferno-Washington, Inc. Control panel of a patient transport device having surface ornamentation
USD742794S1 (en) 2013-06-17 2015-11-10 Ferno-Washington, Inc. Patient transport device
USD770332S1 (en) 2013-06-17 2016-11-01 Ferno-Washington, Inc. Control panel of a patient transport device having surface ornamentation
US10045894B2 (en) 2013-11-15 2018-08-14 Ferno-Washington, Inc. Self-actuating cots

Also Published As

Publication number Publication date
FI44667B (en) 1971-08-31
DE2009479C3 (en) 1978-07-27
DE2009479B2 (en) 1977-12-08
NO122548B (en) 1971-07-12
FR2037957A5 (en) 1970-12-31
DK121452B (en) 1971-10-18
SE329467B (en) 1970-10-12
DE2009479A1 (en) 1970-10-29
CH505619A (en) 1971-04-15
GB1296124A (en) 1972-11-15
NL159279B (en) 1979-02-15
NL7003486A (en) 1970-09-15
FI44667C (en) 1971-12-10

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