GB2116431A - Combination foam/bandage dispenser for use in making a medical cast - Google Patents
Combination foam/bandage dispenser for use in making a medical cast Download PDFInfo
- Publication number
- GB2116431A GB2116431A GB08207399A GB8207399A GB2116431A GB 2116431 A GB2116431 A GB 2116431A GB 08207399 A GB08207399 A GB 08207399A GB 8207399 A GB8207399 A GB 8207399A GB 2116431 A GB2116431 A GB 2116431A
- Authority
- GB
- United Kingdom
- Prior art keywords
- canister
- foam
- valve
- dispensing apparatus
- bandage
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
- B29C44/461—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length dispensing apparatus, e.g. dispensing foaming resin over the whole width of the moving surface
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F13/00—Bandages or dressings; Absorbent pads
- A61F13/04—Plaster of Paris bandages; Other stiffening bandages
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F15/00—Auxiliary appliances for wound dressings; Dispensing containers for dressings or bandages
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Epidemiology (AREA)
- Materials For Medical Uses (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
- Media Introduction/Drainage Providing Device (AREA)
Abstract
Dispensing apparatus for use in making a foam medical cast comprises a valved canister 34 charged with foam-making chemicals, a rolled-up strip 20 of bandage fabric, a yoke arrangement 24 incorporating a bearing unit 28 for holding and allowing rotation of the bandage roll and a mount 32 for securing the canister in rigid position, and a manually operable handle 26 pivotally mounted to the yoke arrangement 24. The handle 26 cooperates with the yoke arrangement 24 in enabling the imposition of a linear actuating force on the canister valve so that operation of the handle opens the valve, whilst simultaneous transit of the yoke arrangement 24 to unroll the bandage strip 20 produces a medical cast preform of foam deposited on the outstretched bandage strip 20. <IMAGE>
Description
SPECIFICATION
Combination foam/bandage dispenser for use in making a medical cast
FIELD OF THE INVENTION
This invention relates generally to the fabrication of medical casts, more particularly to the making of urethane foam casts, and especially to apparatus for dispensing an incipiently curing polyurethane foam in the molding of a rigid, cellular plastic dressing.
BACKGROUND OF THE INVENTION
In the past, a number of different problems have frustrated the utilization of polyurethane foam as a medical cast material despite the clear advantages of such a composition for that purpose. One particularly vexing problem has centered on the difficultly of physically applying the comparatively fragile, uncured foam to the injured limb which is to be immobilized. Spraying of the foam directly onto the limb has prevented obvious containment difficulties; and injection of incipiently curing foam into a tubular sleeve has resulted in a finished cast lacking the necessary uniformity of its physical properties.
BRIEF DESCRIPTION OF THE INVENTION
The instant invention contemplates dispensing apparatus which unrolls a length of fabric bandage onto a table or other horizontal support and simultaneously meters a band of incipiently curing polyurethane foam between the side edges of the bandage strip. During a short dwell time in contact with the bandage fabric, in order to permit an initial rise, the polyurethane foam becomes imbedded in the cloth material; and the resulting composite may then be easily handled as a flexible preform that is wrapped about the injured limb, shaped as desired, and allowed to complete its cure to a rigid, lightweight cast.
Accordingly this invention provides a dispensing apparatus for use in making a foam medical cast comprising: a canister charged with foam-making chemicals under superatmospheric pressure and including an actuating and dispensing valve; a yoke arrangement having mounting means gripped about a portion of the canister to hold said canister in substantially rigid position with said valve aligned to discharge foam chemicals generally along a longitudinal axis, said yoke arrangement further including bearing means and a strip material storage roll rotatably mounted on said bearing means generally transverse said longitudinal axis; a length of strip material wound on said roll; and manually operable handle means for imposing linear actuating force on said valve, whereby operation of said handle means to open said valve coupled with simultaneous transport of said yoke arrangement across a horizontal support surface to unroll strip material from said storage roll produces an elongated bead of foam assembled with a length of said strip material preliminary to the making of a foam medical cast.
In the preferred embodiment the handle means includes a grip portion disposed generally parallel with said axis on one side thereof and an offset portion pivotally connected to said yoke arrangement on the opposite side of and spaced apart from said axis, said offset portion having intermediately disposed, canister valve actuating means aligned with said axis, whereby depression of said grip portion generally toward said axis imposes a substantially linear force at said canister valve actuating means for ensuring uniform deposition of foam chemicals.
Ideally the strip material is bandage fabric. It is preferred that the bearing means should include a removable axle whereby to permit replacement of the storage roll. Also the canister mounting means can include releasible fastener means for facilitating replacement of the foam chemicals canister. Ideally the canister mounting means will include contoured section means for matably engaging a confrontable region of a said canister.
Afan-shaped discharge nozzle can, with advantage, be provided for said canister valve.
The invention provides a combination foam/bandage dispenser which affords simple, one-hand operation for use in making a polyurethane foam medical cast and which is relatively inexpensive and is disposable.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention may be performed in various ways and preferred embodiments thereof will now be described with reference to the accompanying drawings, in which:~
Figure 1 is a perspective view showing a human patient with a full-arm medical cast which was made using dispensing apparatus according to the invention;
Figure 2 is an enlarged view of a portion of the arm cast of Fig. 1 with the cast itself shown in cross-section;
Fig. 3 is a perspective view of dispensing apparatus constructed in compliance with the principles of the present invention;
Fig. 4 is a view of the dispensing apparatus of
Fig. 3, shown in its dispensing mode making a foam medical cast preform;;
Fig. 5 is a view taken in cross-section along the line 5-5 of Fig. 4 and showing placement of a band of incipiently curing polyurethane foam between the side edges of the bandage strip;
Fig. 6 is an enlarged view in partial section showing the canister valve actuating arrangement in its rest or neutral position; and
Fig. 7 is a view similar to the showing of Fig. 6 but illustrating the valve actuating arrangement in operative condition imposing a substantially linear, valve-opening force on the canister valve.
DETAILED DESCRIPTION OF THE DISCLOSED
EMBODIMENT
Referring now in detail to the drawings, specifically to Figs. 1 and 2, a finished polyurethane foam medical cast 10 is illustrated as having been applied to the upper and lower right arm 12 of a human patient. The cast 10 generally comprises a flexible, reticulated foam undergarment 14 and one or more spirally wrapped medical cast preforms 16. The preform or preforms 16 comprise a body or bead of polyurethane foam 18 and a bandage strip 20 which is disposed generally on the outer surface of the cast, the foam body 18 having become imbedded in the undergarment 14 and the bandage strip 20 as it cured, forming a monolithic structure.Details concerning the components and composition of the medical cast 10 are set forth in our recently granted United States Patent Serial No. 4,309,990 to which reference is made for completeness of the instant disclosure.
The present invention contemplates construction of the performs 16 by means of dispensing apparatus which delivers a strip of bandage material and imultaneously applies a metered quantity of incipiently curing polyurethane foam to the unrolled-bandage strip.
With reference to Figs. 3 and 4, dispensing apparatus 11 constructed in compliance with the invention comprises a yoke arrangement 24 and a manually operable handle 26. The yoke arrangement 24 includes a bearing unit 28 for holding and allowing rotation of a cylindrical bandage roll 30, and a mounting unit 32 for securing a foam chemicals canister 34 in substantially rigid position relative to the bearing unit 28 and aligned generally along a central, longitudinal axis 36. In order to provide dispensing apparatus which can be manipulated with only a single hand, as is suggested in Fig. 4, the manually operable handle 26 is fashioned to include a grip portion 38 and an offset portion 40, the grip portion 38 being disposed generally parallel with the axis 36 on one side thereof so that both may be grasped together in one hand.The offset portion 40 is pivotally connected to the yoke arrangement 24 on the opposite side of and spaced apart from the axis 36 by means of a pivot pin 42.
The canister 34 contains suitable quantities of a polyurethane prepolymer composition and liquified propellant gas for expelling that composition through a dressably actuatable valve unit 44 which is operated by a winged actator cap 46 and which is secured in place by a mounting disc or plate 48, disc 48 being adapted to be crimped onto a raised rim or bead extending outwardly from the hemispherical domed top 49 of canister 34. The valve 44 selectively communicates the contents of the canister 34 with a fan-shaped discharge nozzle 50 which is conveniently made integral with the actuator cap 46. Advantageously, the wide dimension of the nozzle 50 is situated parallel with the axis of bandage roll 30 and generally transverse the strip of bandage material 20 which is unrolled in the course of generating the cast preforms, as is suggested in Fig. 4.Continuing with reference to
Figs. 6 and 7, the nozzle 50 has a tubular base or stem portion 52 which is coupled to the actuator cap 46 and which is of lesser diameter than the actuator cap in order to define an annular shoulder
54 for purposes to be described more fully
hereinafter.
In order to secure the canister 34 in rigid
relationship, the canister mounting unit 32
includes a circular strap portion 56 which is
arranged for tightly embracing the cylindrical body
of the canister 34 by means of arcuate convergible
arms 58 and a screw 60 or other releasible
fastening means. In addition, the canister
mounting unit 32 includes a forwardly extending
tongue 62 having a contoured section 64 which
matably engages the confronting, dome-shaped
region of the canister top 49, as is shown in Fig. 4,
so as to promote positive coupling of the canister
in the yoke arrangement 24.
The tongue 62 serves as a placement for the
pivot pin 42 which acts as an attachment site for
swingable handle 26, tongue 62 further serves as
the mounting for a C-shaped bandage yoke 66 of
the bearing unit 28, as is best seen in Fig. 4. A
removable axle 68 isjournaled between the arms
of the C-shaped yoke 66; and a strip of the
bandage fabric 20 of suitable length and width is
wound in a tubular core, or otherwise, to define
the bandage roll 30 which is rotatably mounted by
means of the axle 68. A suitable amount of
frictional drag is built into the relationship
between the bandage roll 30, the arms of yoke 66,
and the axle 68 to insure uniform unrolling of the
bandage strip during operation of the dispensing
apparatus 22. In addition, removable mounting of
the axle 68 simplifies replacement of the bandage
roll when desired.
It is highly important to the development of a medical cast 10 of uniform thickness and strength
that the dispensing apparatus 22 delivers a
uniform bead of foam material 1 8 onto the
bandage strip 20. Therefore and in compliance
with an important feature of the present invention, the handle 26 is arranged to impose a
substantially linear force on the canister actuating
and dispensing valve 44. For this purpose, the
offset portion 40 of handle 26 is fabricated with a
centrally disposed notch 70 aligned with axis of valve 44 and with the axis 36. As is shown in Figs.
6 and 7, the notch 70 fittably receives the valve
actuator cap 46 and acts against the shoulder 54.
As is shown in Fig. 3, the actuator cap has
integral, radially outwardly extending arms or wings 72 with raised tips 74 which serve to
position the offset portion with respect to the
actuator cap 46. Moreover, placement of the pivot
pin 42 for the handle 26 on one side of the axis 36
and location of the grip portion 38 of the handle
on the opposite side of that axis converts motion
of the grip portion 38 generally toward the
canister body in the direction of arrow 76 to a
linearly inward force on the actuating valve in the
general direction of arrow 78. Relaxation of manual gripping pressure on the handle portion
38 allows the compressed, internal rubber parts of
the actuating valve to force the cap in the
direction of the arrow 80 in Fig. 6 and movement
of the offset portion 40 in the direction of arrow ) 82 and about the pivot axis of pin 42.
For purpose of affording a more complete understanding of the invention, it is advantageous now to provide a functional description of the mode in which the dispensing apparatus 22 operates.
With a full bandage roll 30 in place in the yoke arrangement 28 and with the canister 34 properly charged with polyurethane chemicals and propellant providing superatmospheric pressure within the canister, medical cast preforms 16 will be prepared by first clamping the free, leading end of the bandage strip 20 to one edge of a table or countertop 84 and advancing the dispensing apparatus 22 away from the clamped end and in the direction of arrow 86, as is shown in Fig. 4.
As the bandage strip 20 is being unrolled, the handle 26 is depressed toward the body of the canister 34 in the direction indicated in Fig. 7 by the arrow 76, thus applying linear inward force on the valve 44 to open the valve and release the polyurethane foam chemicals onto the bandage strip as the latter is laid out on the countertop 84.
Because substantially linear force is imposed on the valve 44, the urethane chemicals are uniformly dispensed from the canister 34 and uniformly deposited on the bandage strip 20, forming an elongate body of incipiently curing foam of substantially uniform height and width, as is shown in Fig. 5. In addition, the pressure within the canister 32 is coordinated with the diameter of bandage roll 30 so that the body of foam chemicals 18 is spaced inwardly from the side edges of the bandage strip in order to promote ease of handling of the resultant preform, as is shown in Fig. 5.
When a preform of the desired length has been made, the handle 26 is manually released to stop flow of the foam chemicals; and the bandage strip 20 is cut transversely to provide a tail of suitable length for ease of handling of the preform. After a short period of time has expired in order to allow the urethane chemicals to commence cure, the preform is wrapped about the undergarment 14 in an overlapping spiral pattern to form the cast 10, as is shown in Figs. 1 and 2. The injured limb is maintained immobile for a further short period of time until the urethane foam has cured completely to a rigid mass.
The canister 34 is sized to provide sufficient foam chemicals for a single medical cast or a major portion of such a cast and the various mechanical components are fabricated from inexpensive materials. Thus, the dispensing apparatus 22 may be disposed of in the trash after a single usage.
The specific embodiment herein shown and described is to be considered as being primarily illustrative. Various changes in structure will, no doubt, occur to those skilled in the art; and such changes are to be understood as forming a part of this invention insofar as they fall within the spirit and scope of the appended claims.
Claims (8)
1. Dispensing apparatus for use in making a foam medical cast comprising: a canister charged with foam-making chemicals under superatmospheric pressure and including an actuating and dispensing valve; a yoke arrangement having mounting means gripped about a portion of the canister to hold said canister in substantially rigid position with said valve aligned to discharge foam chemicals generally along a longitudinal axis, said yoke arrangement further including bearing means and a a strip material storage roll rotatably mounted on said bearing means generally transverse said longitudinal axis; a length of strip material wound on said roll; and manually operable handle means for imposing linear actuating force on said valve, whereby operation of said handle means to open said valve coupled with simultaneous transport of said yoke arrangement across a horizontal support surface to unroll strip material from said storage roll produces an elongated bead of foam assembled with a length of said strip material preliminary to the making of a foam medical cast.
2. Dispensing apparatus according to Claim 1 wherein said handle means includes a grip portion disposed generally parallel with said axis on one side thereof and an offset portion pivotally connected to said yoke arrangement on the opposite side of and spaced apart from said axis, said offset portion having intermediately disposed, canister valve actuating means aligned with said axis, whereby depression of said grip portion generally toward said axis imposes a substantially linear force at said canister valve actuating means for ensuring uniform deposition of foam chemicals.
3. Dispensing apparatus according to either
Claim 1 or Claim 2 wherein said strip material is bandage fabric.
4. Dispensing apparatus according to any of
Claim 1~3 wherein said bearing means includes a a removable axle whereby to permit replacement of the storage roll.
5. Dispensing apparatus according to any of
Claims 1~4 wherein said canister mounting
means includes releasible fastener means for facilitating replacement of the foam chemicals canister.
6. Dispensing apparatus according to any of
Claims 1~5 wherein said canister mounting
means include contoured section means for
matably engaging a confrontable region of a said canister.
7. Dispensing apparatus according to any of the
preceding claims which further comprises a fan
shaped discharge nozzle for said canister valve.
8. Dispensing apparatus for use in making a foam medical cast and substantially as herein
described with reference to the accompanying
drawings.
Priority Applications (16)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8105588A SE8105588L (en) | 1981-09-22 | 1981-09-22 | MEDICAL FOAM SURFACE AND WAY TO MAKE THE SAME |
CA000398223A CA1164199A (en) | 1981-09-22 | 1982-03-12 | Combination foam/bandage dispenser for use in making a medical cast |
GB08207399A GB2116431B (en) | 1981-09-22 | 1982-03-13 | Combination foam/bandage dispenser for use in making a medical cast |
FR8204319A FR2522962A1 (en) | 1981-09-22 | 1982-03-15 | COMBINED FOAM AND BANDAGE DISPENSING APPARATUS FOR PRODUCING MEDICAL PLASTERS |
AU81552/82A AU8155282A (en) | 1981-09-22 | 1982-03-16 | Combined p.u. foam/bandage medical cast dispenser |
DE19823210259 DE3210259A1 (en) | 1981-09-22 | 1982-03-20 | Combined foam/bandage dispensing device for the preparation of a medical dressing |
NL8201169A NL8201169A (en) | 1981-09-22 | 1982-03-22 | DELIVERY DEVICE FOR APPLICATION WHEN MAKING A MEDICAL FOAM Bandage. |
BE0/207663A BE892626A (en) | 1981-09-22 | 1982-03-24 | Manual dispenser for making medical plaster cast preforms - of bandage on which layer of foam, e.g. polyurethane is deposited from pressurised can |
JP58502752A JPS59501394A (en) | 1981-09-22 | 1983-08-12 | Method for neutralizing irritating substances and toxic gases and suitable formulations for carrying out the method |
IL69491A IL69491A (en) | 1981-09-22 | 1983-08-12 | Process for neutralizing irritant and toxic gases and composition for carrying out said process |
PCT/DE1983/000141 WO1984000694A1 (en) | 1981-09-22 | 1983-08-12 | Process for neutralizing irritating substances and poisonous gas |
DE19833329251 DE3329251A1 (en) | 1981-09-22 | 1983-08-12 | Process for neutralising irritants and toxic gases and compositions suitable for carrying out the process |
AU18862/83A AU1886283A (en) | 1981-09-22 | 1983-08-12 | Verfahren zur neutralisierung von reizstoffen und giftigen gasen und zur durchfuhrung des verfahrens geeignete praparate |
EP83108009A EP0101083A1 (en) | 1981-09-22 | 1983-08-12 | Process for neutralising irritants and toxic gases and for preparations suitable for carrying out the process |
DE19843403810 DE3403810A1 (en) | 1981-09-22 | 1984-02-03 | Method for the decontamination of rooms, articles and people, and products suitable for carrying out the method |
AU24252/84A AU2425284A (en) | 1981-09-22 | 1984-02-07 | Process for decontaminating rooms objects and persons using pvp |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8105588A SE8105588L (en) | 1981-09-22 | 1981-09-22 | MEDICAL FOAM SURFACE AND WAY TO MAKE THE SAME |
CA000398223A CA1164199A (en) | 1981-09-22 | 1982-03-12 | Combination foam/bandage dispenser for use in making a medical cast |
GB08207399A GB2116431B (en) | 1981-09-22 | 1982-03-13 | Combination foam/bandage dispenser for use in making a medical cast |
FR8204319A FR2522962A1 (en) | 1981-09-22 | 1982-03-15 | COMBINED FOAM AND BANDAGE DISPENSING APPARATUS FOR PRODUCING MEDICAL PLASTERS |
AU81552/82A AU8155282A (en) | 1981-09-22 | 1982-03-16 | Combined p.u. foam/bandage medical cast dispenser |
DE19823210259 DE3210259A1 (en) | 1981-09-22 | 1982-03-20 | Combined foam/bandage dispensing device for the preparation of a medical dressing |
NL8201169A NL8201169A (en) | 1981-09-22 | 1982-03-22 | DELIVERY DEVICE FOR APPLICATION WHEN MAKING A MEDICAL FOAM Bandage. |
BE0/207663A BE892626A (en) | 1981-09-22 | 1982-03-24 | Manual dispenser for making medical plaster cast preforms - of bandage on which layer of foam, e.g. polyurethane is deposited from pressurised can |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2116431A true GB2116431A (en) | 1983-09-28 |
GB2116431B GB2116431B (en) | 1984-11-28 |
Family
ID=34222731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08207399A Expired GB2116431B (en) | 1981-09-22 | 1982-03-13 | Combination foam/bandage dispenser for use in making a medical cast |
Country Status (7)
Country | Link |
---|---|
AU (1) | AU8155282A (en) |
CA (1) | CA1164199A (en) |
DE (1) | DE3210259A1 (en) |
FR (1) | FR2522962A1 (en) |
GB (1) | GB2116431B (en) |
NL (1) | NL8201169A (en) |
SE (1) | SE8105588L (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB879666A (en) * | 1957-11-09 | 1961-10-11 | Dura Design Plastics Ltd | A method of manufacturing casts made with plastic foam material |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2778537A (en) * | 1953-07-24 | 1957-01-22 | Kanno Kurt | Liquid dispenser |
FR1199948A (en) * | 1957-11-09 | 1959-12-17 | Procedure for establishing an orthopedic cast | |
AU453807B2 (en) * | 1970-12-21 | 1974-09-26 | J. POITRAS and EDWIN W. WLODYKA EDWARD | Treated material dispenser |
US3748211A (en) * | 1971-06-30 | 1973-07-24 | M Hoopengardner | Carpet tape dispenser |
-
1981
- 1981-09-22 SE SE8105588A patent/SE8105588L/en unknown
-
1982
- 1982-03-12 CA CA000398223A patent/CA1164199A/en not_active Expired
- 1982-03-13 GB GB08207399A patent/GB2116431B/en not_active Expired
- 1982-03-15 FR FR8204319A patent/FR2522962A1/en not_active Withdrawn
- 1982-03-16 AU AU81552/82A patent/AU8155282A/en not_active Abandoned
- 1982-03-20 DE DE19823210259 patent/DE3210259A1/en not_active Withdrawn
- 1982-03-22 NL NL8201169A patent/NL8201169A/en not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB879666A (en) * | 1957-11-09 | 1961-10-11 | Dura Design Plastics Ltd | A method of manufacturing casts made with plastic foam material |
Also Published As
Publication number | Publication date |
---|---|
NL8201169A (en) | 1983-10-17 |
SE8105588L (en) | 1983-03-23 |
DE3210259A1 (en) | 1983-09-22 |
AU8155282A (en) | 1983-09-22 |
GB2116431B (en) | 1984-11-28 |
FR2522962A1 (en) | 1983-09-16 |
CA1164199A (en) | 1984-03-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |