US2298101A - Method of making rubber nasal masks - Google Patents

Method of making rubber nasal masks Download PDF

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Publication number
US2298101A
US2298101A US385797A US38579741A US2298101A US 2298101 A US2298101 A US 2298101A US 385797 A US385797 A US 385797A US 38579741 A US38579741 A US 38579741A US 2298101 A US2298101 A US 2298101A
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US
United States
Prior art keywords
rubber
bulbous
bulbous portion
making
nasal masks
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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
Application number
US385797A
Inventor
Carl L Beal
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American Anode Inc
Original Assignee
American Anode Inc
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
Priority claimed from US328329A external-priority patent/US2296011A/en
Application filed by American Anode Inc filed Critical American Anode Inc
Priority to US385797A priority Critical patent/US2298101A/en
Application granted granted Critical
Publication of US2298101A publication Critical patent/US2298101A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D99/00Subject matter not provided for in other groups of this subclass
    • B29D99/0064Producing wearing apparel
    • B29D99/0071Masks, e.g. gas masks
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62BDEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B23/00Filters for breathing-protection purposes
    • A62B23/06Nose filters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/48Wearing apparel
    • B29L2031/4807Headwear
    • B29L2031/4835Masks
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/52Processes of making corrugated tubes for gas mask

Definitions

  • This invention relates to an improved deposi-' tion form and method for use in making rubber nasal masks of the type used, for example, by aviators for high altitude flying.
  • This invention comprises a deposition form with certain novel structural features incorporated therein so that an improved nasal mask may be made efliciently, cheaply, and with a minimum of time.
  • the mask produced is of onepiece integral construction.
  • the improved form which is the subject of this invention comprises a bulbous portion, two rod-like arms extending from spaced apart pointson the bulbous portion and mergingto form a ring-like structure, and a stem portion on the ring-like structure opposite to and projecting in a direction generally awayfrom the bulbous portion.
  • the form is coated with rubber by any of the usual methods such as by depositing rubber from an aqueous dispersion of rubber by the use of a coagulant solution such as any of those disclosed in U. '8. Patent No. 1,996,090 granted to Edward A. Willson.
  • This invention can best be understood by ref- 1 erence to the accompanying drawing showing both the construction of the form and the prin-- cipal steps in a preferred method of making a rubber nasal mask, as well as the rubber article so produced.
  • a fin-like portion I5 is located on the bulbous portion I I and projects outwardly in a direction opposite the stem portion I4.
  • the bulbous. portion II and the fin-like portion I5 are provided with a backing portion I6 which serves to produce a fiat backand is arranged so as to leave open spaces between the backing portion I6 and each of the rod-like arms I2, I2 for a substantial distance along the rod-like arms as indicated at 25, 25. These two open spaces are joined by a groove IT in the bulbous portion I I between the rod-like arms I2, I2 with the groove having an angular shoulder formed by the backing portion I6.
  • the deposition form I0 consists of two elements separably joined, as with dowel pins, at two points I8, I9 on the ring-like structure I3 to give a unitary structure. These points lie in linear relationship with one of the points I8, located near the stem portion I4 of the form and with the other point I9 located near the bulbous portion II of the form.
  • the deposition form is mounted on a support 20 extending from the backing portion I6 for Fig. 1 is anelevation of the deposition form of this invention mounted on a support and immersed in a body of latex.
  • Fig. 2 is an elevation of the rubber coated form with a portion of the rubber broken away for clarity of illustration.
  • Fig. 3 is an elevation illustrating removal of the form from the rubber deposit.
  • Fig. 4 is an elevation in profile of the nasal mask.
  • Fig. 5 is an elevation showing the rear view of the nasal mask.
  • Fig. 6 is a cross-sectional elevation of the mask taken along line 6-6 of Fig. 5.
  • Fig. 7 is a cross-sectional elevation of the deposition form taken along line 'I-'I of Fig. 1.
  • a deposition form III embodying the present invention comprises a bulbous portion II, and two rod-like arms I2, I2 of generally semi-circular cross section projecting from spaced apart points on the bulbous portion II. These arms merge to form a ring-like structure I3 lying in a concave plane.
  • a stem portion I4 is provided the clipping operation and is preferably mounted with the stem portion I4 up so as to lessen any danger of'the form coming apart at the two joints I8, I9.
  • the deposition form is coated with rubber, as by immersion in latex (Fig. l) and the rubber is dried and vulcanized. The rubber is cut around the edge 2I of the backing portion I6 and this. section of the rubber is removed.
  • the form is then separated at the two points I8, I 9 and the bulbous portion II with its attached portion of the ring-like structure I3 is portion is cut off and the portion of the mask like, with the preferred material being-alumion this ring-like structure I3 located opposite to num.
  • a hollow one-piece unitary rubber deposit comprising a bulbous portion with two tube-like portions projecting from spaced apart points on the bulbous portion by depositing rubber from a liquid rubber composition on a deposition form of the required shape, removing from the bulbous portion a generally triangular portion lying in a plane generally parallel to the plane of the projecting tube-like arms, and removing at least a portion of the deposition form through the resulting opening in the rubber deposit.
  • a hollow one-piece unitary rubber deposit comprising a bulbous portion with two tube-like portions projecting from spaced apart points on the bulbous portion and merging to form a ring-like structure, removing a generally triangular portion at the back of the bulbous portion, and feathering a substantial part of the edge so formed by the removal of the triangular portion.
  • a rubber nasal mask comprising forming a hollow one-piece unitary rubber deposit comprising a bulbous portion with two tube-like portions projecting from spaced apart points on the bulbous portion and merging to form a ring-like structure, removing a generally triangular portion at the back of the bulbous portion, and feathering the entire edge so formed by the removal of the triangular portion.

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  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Medicinal Preparation (AREA)

Description

Oct. 6, 1942-? c. L. BEAL METHOD OF MAKING RUBBER NASALMASKS Original Filed April. 6,1940
Patented Oct. 6, 1942 METHOD OF MAKING'RUBBER NASAL MASKS Carl L. Beal, Cuyahoga Falls, Ohio, assignor to American Anode, Inc., Akron, Ohio, a. corporation 01' Delaware Original application April 6, 1940, Serial No.
328,329. Divided and this application March.
I 29, 1941, Serial No. 385,797
4 Claims.
This invention relates to an improved deposi-' tion form and method for use in making rubber nasal masks of the type used, for example, by aviators for high altitude flying.
This application is a division of my copending application Serial No. 328,329, filed April 6, 1940.
This invention comprises a deposition form with certain novel structural features incorporated therein so that an improved nasal mask may be made efliciently, cheaply, and with a minimum of time. The mask produced is of onepiece integral construction.
Generally, the improved form which is the subject of this invention comprises a bulbous portion, two rod-like arms extending from spaced apart pointson the bulbous portion and mergingto form a ring-like structure, and a stem portion on the ring-like structure opposite to and projecting in a direction generally awayfrom the bulbous portion. The form is coated with rubber by any of the usual methods such as by depositing rubber from an aqueous dispersion of rubber by the use of a coagulant solution such as any of those disclosed in U. '8. Patent No. 1,996,090 granted to Edward A. Willson. This invention can best be understood by ref- 1 erence to the accompanying drawing showing both the construction of the form and the prin-- cipal steps in a preferred method of making a rubber nasal mask, as well as the rubber article so produced.
and projecting generally away from the bulbous portion I I. A fin-like portion I5 is located on the bulbous portion I I and projects outwardly in a direction opposite the stem portion I4. The bulbous. portion II and the fin-like portion I5 are provided with a backing portion I6 which serves to produce a fiat backand is arranged so as to leave open spaces between the backing portion I6 and each of the rod-like arms I2, I2 for a substantial distance along the rod-like arms as indicated at 25, 25. These two open spaces are joined by a groove IT in the bulbous portion I I between the rod-like arms I2, I2 with the groove having an angular shoulder formed by the backing portion I6. The deposition form I0 consists of two elements separably joined, as with dowel pins, at two points I8, I9 on the ring-like structure I3 to give a unitary structure. These points lie in linear relationship with one of the points I8, located near the stem portion I4 of the form and with the other point I9 located near the bulbous portion II of the form.
The deposition form is mounted on a support 20 extending from the backing portion I6 for Fig. 1 is anelevation of the deposition form of this invention mounted on a support and immersed in a body of latex.
Fig. 2 is an elevation of the rubber coated form with a portion of the rubber broken away for clarity of illustration.
Fig. 3 is an elevation illustrating removal of the form from the rubber deposit.
Fig. 4 is an elevation in profile of the nasal mask.
Fig. 5 is an elevation showing the rear view of the nasal mask.
Fig. 6 is a cross-sectional elevation of the mask taken along line 6-6 of Fig. 5.
Fig. 7 is a cross-sectional elevation of the deposition form taken along line 'I-'I of Fig. 1.
A deposition form III embodying the present invention comprises a bulbous portion II, and two rod-like arms I2, I2 of generally semi-circular cross section projecting from spaced apart points on the bulbous portion II. These arms merge to form a ring-like structure I3 lying in a concave plane. A stem portion I4 is provided the clipping operation and is preferably mounted with the stem portion I4 up so as to lessen any danger of'the form coming apart at the two joints I8, I9. The deposition form is coated with rubber, as by immersion in latex (Fig. l) and the rubber is dried and vulcanized. The rubber is cut around the edge 2I of the backing portion I6 and this. section of the rubber is removed. The form is then separated at the two points I8, I 9 and the bulbous portion II with its attached portion of the ring-like structure I3 is portion is cut off and the portion of the mask like, with the preferred material being-alumion this ring-like structure I3 located opposite to num.
' Although this invention has been described with particular reference to a preferred formand to the resulting nasal mask produced therewith it is understood that the invention is not limited to this preferred embodiment but shall be unlimited within the spirit and scope of the appended claims.
I claim:
1. The method of making a rubber nasal mask comprising forming a hollow one-piece unitary rubber deposit comprising a bulbous portion with two tube-like portions projecting from spaced apart points on the bulbous portion by depositing rubber from a liquid rubber composition on a deposition form of the required shape, removing from the bulbous portion a generally triangular portion lying in a plane generally parallel to the plane of the projecting tube-like arms, and removing at least a portion of the deposition form through the resulting opening in the rubber deposit.
2. The method of making a rubber nasal mask tion lying in a plane generally parallel to the plane or the projecting tube-like arms, and feathering a substantial part of the edge so formed by the removal of the triangular portion.
3. The method of making a rubber nasal mask comprising forming, a hollow one-piece unitary rubber deposit comprising a bulbous portion with two tube-like portions projecting from spaced apart points on the bulbous portion and merging to form a ring-like structure, removing a generally triangular portion at the back of the bulbous portion, and feathering a substantial part of the edge so formed by the removal of the triangular portion.
4. The method of making a rubber nasal mask comprising forming a hollow one-piece unitary rubber deposit comprising a bulbous portion with two tube-like portions projecting from spaced apart points on the bulbous portion and merging to form a ring-like structure, removing a generally triangular portion at the back of the bulbous portion, and feathering the entire edge so formed by the removal of the triangular portion.
CARL L. BEAL.
US385797A 1940-04-06 1941-03-29 Method of making rubber nasal masks Expired - Lifetime US2298101A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US385797A US2298101A (en) 1940-04-06 1941-03-29 Method of making rubber nasal masks

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US328329A US2296011A (en) 1940-04-06 1940-04-06 Deposition form
US385797A US2298101A (en) 1940-04-06 1941-03-29 Method of making rubber nasal masks

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666953A (en) * 1950-02-17 1954-01-26 Goodrich Co B F Method of making partitioned containers
US3112748A (en) * 1960-04-04 1963-12-03 Pharmaseal Lab Surgical tube
US4797081A (en) * 1987-03-10 1989-01-10 Prater Ronald E Mandrel for making elastomeric articles
US4943225A (en) * 1987-03-10 1990-07-24 Prater Ronald E Mandrel for making elastomeric articles
US5380182A (en) * 1989-06-02 1995-01-10 Minnesota Mining And Manufacturing Company Mold having elastomeric mold member therewith

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2666953A (en) * 1950-02-17 1954-01-26 Goodrich Co B F Method of making partitioned containers
US3112748A (en) * 1960-04-04 1963-12-03 Pharmaseal Lab Surgical tube
US4797081A (en) * 1987-03-10 1989-01-10 Prater Ronald E Mandrel for making elastomeric articles
US4943225A (en) * 1987-03-10 1990-07-24 Prater Ronald E Mandrel for making elastomeric articles
US5380182A (en) * 1989-06-02 1995-01-10 Minnesota Mining And Manufacturing Company Mold having elastomeric mold member therewith

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