GB1284878A - Improved artificial leg - Google Patents

Improved artificial leg

Info

Publication number
GB1284878A
GB1284878A GB57061/68A GB5706168A GB1284878A GB 1284878 A GB1284878 A GB 1284878A GB 57061/68 A GB57061/68 A GB 57061/68A GB 5706168 A GB5706168 A GB 5706168A GB 1284878 A GB1284878 A GB 1284878A
Authority
GB
United Kingdom
Prior art keywords
cylinder
passage
passages
artificial leg
fluid flow
Prior art date
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
Application number
GB57061/68A
Inventor
John Jeffery Shorter
Frank Allan Webb
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chas A Blatchford and Sons Ltd
Original Assignee
Chas A Blatchford and Sons Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chas A Blatchford and Sons Ltd filed Critical Chas A Blatchford and Sons Ltd
Priority to GB57061/68A priority Critical patent/GB1284878A/en
Priority to DE19691959822 priority patent/DE1959822A1/en
Priority to FR6941363A priority patent/FR2025009A1/fr
Priority to US881100A priority patent/US3670341A/en
Publication of GB1284878A publication Critical patent/GB1284878A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/24—Other details, e.g. assembly with regulating devices for restricting the stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
    • F15B15/04—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member with oscillating cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
    • F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1433—End caps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S16/00—Miscellaneous hardware, e.g. bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance
    • Y10S16/21—Checks, closers, check valve construction

Abstract

1284878 Artificial legs CHAS A BLATCHFORD & SONS Ltd 1 Dec 1969 [2 Dec 1968] 57061/68 Heading A5R An artificial leg having upper and lower members hinged together includes a fluid operated control device (3) which comprises a closed cylinder of adjustable length including a piston having an attached rod extending through one end of the cylinder such that the rod is connected to the upper member of the artificial leg and the cylinder to the lower member. The piston and cylinder comprises a closed system such that when the piston moves upwards fluid is expelled through an enlargement 7A into a passage 7C which communicates with air tubes 8 and 9 running outside the cylinder from an upper housing 4A to a lower housing 4B. At their lower ends passages 8 and 9 communicate with a bore 10A having a further air passage 10 communicating with the interior of the cylinder. Passages 8 and 9 contain adjustable needle valves at their upper ends to control fluid flow therethrough. Bore 10A contains a non return valve which permits fluid flow in one direction only from passage 9 to passage 10 while allowing fluid flow in both directions between passages 8 and 10. By varying these valves the "swing phase" of the artificial leg can be controlled. The cylinder includes an axially movable plug 5 screwed into upper housing 4A to vary the length of the cylinder.
GB57061/68A 1968-12-02 1968-12-02 Improved artificial leg Expired GB1284878A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB57061/68A GB1284878A (en) 1968-12-02 1968-12-02 Improved artificial leg
DE19691959822 DE1959822A1 (en) 1968-12-02 1969-11-28 Control device operating with pressure medium, in particular as a vibration control device for artificial limbs
FR6941363A FR2025009A1 (en) 1968-12-02 1969-12-01
US881100A US3670341A (en) 1968-12-02 1969-12-01 Fluid pressure control device for an artificial leg

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB57061/68A GB1284878A (en) 1968-12-02 1968-12-02 Improved artificial leg

Publications (1)

Publication Number Publication Date
GB1284878A true GB1284878A (en) 1972-08-09

Family

ID=10478260

Family Applications (1)

Application Number Title Priority Date Filing Date
GB57061/68A Expired GB1284878A (en) 1968-12-02 1968-12-02 Improved artificial leg

Country Status (4)

Country Link
US (1) US3670341A (en)
DE (1) DE1959822A1 (en)
FR (1) FR2025009A1 (en)
GB (1) GB1284878A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194443A (en) * 1986-08-07 1988-03-09 Hanger & Co Ltd J E Improvements in knee prosthesis
GB2260495A (en) * 1991-10-04 1993-04-21 Steeper Hugh Ltd Orthotic or prosthetic walking brace
US5948021A (en) * 1998-02-24 1999-09-07 Hosmer-Dorrance Corporation Hydraulic cylinders for limb gait control

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4212087A (en) * 1978-11-16 1980-07-15 Mortensen Lavaugh L Prosthetic leg with a hydraulic control
SE458945B (en) * 1985-02-18 1989-05-22 Vaexjoe Protes Ab HYDRAULIC DEVICE, SPECIFICALLY FOR LEG PROTECTION
DE3709173A1 (en) * 1987-03-20 1988-09-29 Knorr Bremse Ag Double-acting pressure-medium cylinder
US4994086A (en) * 1989-08-09 1991-02-19 United States Manufacturing Company Universal modular frame for above-knee endoskeletal prosthesis
DE29513664U1 (en) * 1995-08-25 1997-01-16 Bks Gmbh Drive connection
JP5748340B2 (en) * 2011-08-22 2015-07-15 ナブテスコ株式会社 Fluid actuator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR24035E (en) * 1920-04-23 1922-02-20 Georges Camille Basset Automatic gait regulator brake for artificial legs
GB416341A (en) * 1934-03-05 1934-09-11 J E Hanger & Company Ltd Improvements in or relating to knee joints for artificial limbs
GB748770A (en) * 1953-03-19 1956-05-09 John Brown Improvements in door checks
US2918040A (en) * 1954-12-15 1959-12-22 Mead Specialties Company Power cylinder assembly
GB982527A (en) * 1962-09-20 1965-02-03 Blatchford & Sons Ltd Improvements in and relating to artificial limbs

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194443A (en) * 1986-08-07 1988-03-09 Hanger & Co Ltd J E Improvements in knee prosthesis
GB2260495A (en) * 1991-10-04 1993-04-21 Steeper Hugh Ltd Orthotic or prosthetic walking brace
GB2260495B (en) * 1991-10-04 1996-02-07 Steeper Hugh Ltd An orthotic or prosthetic walking brace
US5948021A (en) * 1998-02-24 1999-09-07 Hosmer-Dorrance Corporation Hydraulic cylinders for limb gait control

Also Published As

Publication number Publication date
FR2025009A1 (en) 1970-09-04
DE1959822A1 (en) 1970-09-03
US3670341A (en) 1972-06-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PE20 Patent expired after termination of 20 years