US2812796A - Apparatus for producing an absorbent element for filters - Google Patents
Apparatus for producing an absorbent element for filters Download PDFInfo
- Publication number
- US2812796A US2812796A US501894A US50189455A US2812796A US 2812796 A US2812796 A US 2812796A US 501894 A US501894 A US 501894A US 50189455 A US50189455 A US 50189455A US 2812796 A US2812796 A US 2812796A
- Authority
- US
- United States
- Prior art keywords
- chamber
- fibers
- die
- filter
- sliver
- 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 - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
- A24D3/0212—Applying additives to filter materials
- A24D3/022—Applying additives to filter materials with liquid additives, e.g. application of plasticisers
-
- 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
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
-
- 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
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
- A61F13/2051—Tampons, e.g. catamenial tampons; Accessories therefor characterised by the material or the structure of the inner absorbing core
-
- 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
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
- A61F13/2082—Apparatus or processes of manufacturing
-
- 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
- A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F13/20—Tampons, e.g. catamenial tampons; Accessories therefor
- A61F13/2082—Apparatus or processes of manufacturing
- A61F13/2085—Catamenial tampons
Definitions
- the present invention relates to an apparatus for producing fibrous elements which are highly porous and exhibit good liquid or moisture retention properties. Specifically the invention relates to an apparatus for producing fibrous tobacco smoke filter material.
- the absorbent fibrous elements may be used in dental or surgical pads, dressings, tampons and the like.
- Tobacco smoke is made up of a mixture of gaseous compounds and finely divided solids.
- the smoke comprises tar, phenol, acetic acid, acrolein, carbon dioxide, water vapor, and solid dust particles.
- These compounds and elements are formed and derived from the disintegration of the tobacco and in the case of cigarettes, the cigarette paper wrapper. Most of these substances are contained in tobacco smoke in the vapor state.
- the tobacco smoke filters in use today trap only minor portions of these ingredients of tobacco smoke as mentioned above. The major portions of these ingredients are not trapped by the fibrous filters and they pass through the filter into the smokers mouth and lungs. These tobacco smoke filters have not proved to be entirely satisfactory and the tobacco companies, especially the cigarette manufacturers, are constantly searching for improved tobacco smoke filters.
- a satisfactory tobacco smoke filter is, first, that it effectively remove toxic or harmful ingredients from the smoke drawn into the users mouth. Secondly, the filter must be sufficiently porous so that it does not interfere with free passage of the smoke or what is commonly termed the draw. In addition, a cigarette filter must be suificiently firm to support the cigarette without bending or becoming undesirably soft and flabby. It will be appreciated from the above requirements that good draw is ordinarily inversely proportional to filtering ability, namely, the denser the filter, the more effective is the filtering, but suction required to draw the smoke through the filter is also higher.
- Another object of my invention is to provide an apparatus for producing an internally bound, firm bodied, absorbent element for medical and surgical uses.
- Another object of my invention is to provide an apparatus which is simple in construction for producing tobacco smoke filter material having good draw properties, sutficient density and stifiness.
- It is still a further object of my invention to provide an apparatus for producing tobacco smoke filters from a sliver of potentially adhesive and non-adhesive fibers which apparatus includes a chamber through which the sliver is drawn and wherein the adhesive fibers within the sliver are activated to autogenously bond together the fibers within the sliver, and means for wrapping the sliver in a paper wrapper after the sliver has emerged from the chamber.
- Another object of my invention to provide in the activating chamber of the above object means for releasing excess vaporized activating agent from the chamber.
- a final object of my invention is to provide in an activating chamber for activating the potentially adhesive fibers within the sliver passing through the chamber, a novel type inlet or entrance die for the sliver passing into the chamber which die substantially eliminates any activated fiber build up on the die.
- Figure l is a perspective of my fibrous element in bundle or sliver form
- Figure 2 is a perspective of my tobacco smoke filter
- Figure 3 is a perspective of a filter type cigarette with my tobacco smoke filter incorporated therein;
- Figure 4 is a side partially sectioned view of the apparatus for forming my filter.
- FIG. 5 is an enlarged fragmentary view taken along lines V-V of Figure 4.
- my apparatus for producing my fibrous absorbent element and my tobacco smoke filter plugs from nonadhesive fibers and potentially adhesive fibers comprises an elongated chamber through which a sliver formed from a m1xture of above fibers is drawn and wherein the potentially adhesive fibers are activated as the sliver passes therethrough.
- the chamber is heated by a series of heating umts secured to the chamber wall.
- Means extending through the chamber wall is provided for introducing therewithin an activating agent for the potentially adhesive fibers.
- An entrance die for feeding the sliver into the chamber extends through an end wall of the chamber and an exit die through which the sliver is discharged from the chamber extends through the opposite end wall of the chamber.
- the exit die is of a smaller bore than the entrance die whereby the activated sliver is condensed as it leaves the chamber.
- the entrance die has a novel construction whereby any build-up of activated fibers is substantially eliminated at its exit end. Means is provided for further compressing and wrapping the sliver with a paper cover after it leaves the chamber.
- non-adhesive and potentially adhesive refer to types of fibers, one of which becomes tacky or adhesive under conditions under which the other fiber is relatively unaffected. Where the tacky or adhesive condition results from elevated temperature, the potentially adhesive fibers will, of course, be of a thermoplastic nature. Ordinarily, the non-adhesive fiber will not be thermoplastic but a thermoplastic fiber could be used provided the temperature at which it became tacky is sufiiciently higher than the temperature at which the other potentially adhesive fiber becomes tacky.
- the potentially adhesive fibers are formed from vinyl resins resulting from the polymerization of compounds containing the vinyl group such as polyvinylchloride or copolymers of vinyl chloride and vinyl acetate.
- Other potentially adhesive fibers may be used successfully in the present invention, for example, certain copolymers of vinyl chloride and acrylonitrile.
- Figure 1 shows the fibrous element in bundle or sliver form.
- the sliver A is a carefully blended mixture of nonadhesive regenerated cellulose fibers, such as rayon staple, and potentially adhesive or thermoplastic fibers.
- the fibers mentioned above are of the textile fiber class having diameters of at least 9 microns.
- the mixture of the present invention can be satisfactorily formed by uniformly distributing 10-25% of the potentially adhesive fibers into the major proportion, 75 90% by weight, of crimped rayon staple fiber.- It has been found that the potentially adhesive fibers should comprise at least 10% by weight of the mixture and preferably should be in the range of 10-15% by weight.
- the length of the individual fibers may vary from A2 to 2 /2 inches and should be between 1 to 2 /2 denier, preferably 1 to 1 /2 denier. Due to the crimp in the non-adhesive fibers and, if desired, in the potentially adhesive fibers, minute traps or voids are formed within the body of the element which enhance the absorptiveness of the element and also provide for the porosity which in turn permits easy draw.
- the fibers specified above range in weight from l00-125 grains and the fine relatively short length fibers provide a compact, dense structure in which many of the shorter length fibers will lie across the general longitudinal axis of the element.
- nonadhesive or rayon fibers within the fibrous mass are crimped.
- the fibers may be crimped chemically as distinguished from a mechanical crimp.
- Such chemical crimping is disclosed and claimed in United States Patent 2,517,694. This crimping remains in the fiber even when it is wet.
- the filaments may be mechanically crimped according to well known processes and apparatus. Since relatively small denier fibers are used to form the element and since the fibers are crimped, numerous minute traps or voids are formed within the element which render the fibrous element capable of entrapping and retaining liquids, moisture and minute solid particles.
- the potentially adhesive fibers may or may not be crimped.
- the potentially adhesive fibers are activated, as will be explained hereinafter, to autogenously bond together the non-adhesive fibers in the sliver A.
- the fibers are compressed, as will also be explained, after the potentially adhesive fibers have been activated to provide a compact article of good strength.
- a tobacco smoke filter or plug B formed from the fibrous mass or sliver A of Figure 1 is shown in Figure 2 of the drawing.
- the tobacco smoke filter B in this instance, is of cylindrical shape.
- the potentially adhesive fibers have been activated and compressed to autogenously bond together the non-adhesive rayon fibers and the potentially adhesive fibers to provide a compact cylindrical shaped article of good strength.
- the completed element is to be used as a cigarette filter, the bonded element is wrapped or stuffed in a paper wrapper 2 and cut into suitable lengths to form the filter plug B.
- FIG 3 shows the wrapped filter plug B of Figure 2 incorporated in a cigarette C.
- the tobacco and the filter plug B are formed into a unitary cigarette having the usual cigarette paper Ill.
- the apparatus for forming and converting the mixed sliver to a tow or rod from which filter elements can be cut has been designed to insure a combination of all the desired properties for a cigarette filter.
- a filter element must have firmness or body, maximum filtering ability, and porosity to permit free and easy draw.
- density of the filter is inversely proportional to the draw or pressure required to force the fiuid through the filter.
- the crimped fibers which are autogenously bonded into a uniform element with the minor proportion of either crimped or uncrimped potentially adhesive fibers cooperate to provide this unexpected and desired result.
- the apparatus in which the relatively loose sliver is activated and transformed into a comparatively strong, dense but porous rod comprises a chamber or tube 18 into which the sliver 19 is drawn through a funnel shaped die 2% mounted in the forward end wall 21 of the chamber.
- the tacky sliver is drawn out of the chamber 18 through a relatively longer die 23 mounted in the rear wall 24 of the chamber and in alignment with die 20.
- Die 23 has a sub stantially smaller bore than entrance die 20.
- the preferred diameters for the entrance and exit dies are and /8 of an inch respectively when it is desired to fabricate a cigarette filter. For other articles the dimension of the bores may be changed but substantially the same ratio should be maintained.
- the inside of the chamber 18 is maintained at an elevated temperature of approximately C.
- heating elements 25, 25 which surround the walls of the chamber. if desired, the heating elements are covered by suitable insulating material 27 through which electrical connections to the heaters may be made at 28, 28.
- suitable insulating material 27 through which electrical connections to the heaters may be made at 28, 28.
- acetone is introduced to the chamber through a nozzle 3%. The acetone may fall directly on the sliver in the chamber or it may be vaporized when it falls onto the heated chamber wall.
- the potentially adhesve fibers in the sliver are sufficiently softened throughout the sliver so that when the sliver is drawn through die 23 there is a compression or rearrangement of the structure to provide a firm, compact, internally bound but porous rod 31.
- they are preferably made of polytetrafiuoroethylene, sold commercially under the trade name of Teflon.
- annular bevel 40 on the downstream end of die 24 it is possible to prevent build-up or adherence of fibers 'to any part of die 20.
- the rod 31 passes through a wrapping upparatus 50 wherein a continuous sheet of wrapping paper 55 supplied from a reel 56 is folded around the rod.
- the wrapper 55 is sealed by applying an adhesive from a liquid adhesive applicator 60 connected with an adhesive supply container 61.
- the diameter of the bore of the wrapping apparatus 50 through which the activated tow passes is somewhat smaller than the diameter of the exit die 23 of the activation chamber or pipe 18 whereby the diameter of the tow is further reduced to correspond with the diameter of a cigarette or tobacco cylinder with which the filter plug B is to be incorporated.
- V aporizcd acetone as an activating agent for the potentially adhesive fibers is preferred in that it has been found that the fibers within the tow which have been subjected to vaporized acetone are more firmly bound together and the finished filter plug exhibits greater stiffness and excellent draw which features also contribute to the success of the filter. It has also been found that the cleaner cuts may be made with the acetone activated filter plug. in the apparatus described above, the softening of the potentially adhesive fibers is achieved primarily by means of the solvent, namely, acetone, which is applied to the fibers. However, it will be understood that the temperature in chamber 18 may be sufiiciently elevated to assist or, if desired, completely provide for the softening of the minor proportion fibers.
- Another important feature or" my invention is that the filtering efficiency of a tobacco smoke filter improves during use.
- An inherent property of viscose rayon is that it swells considerably when in contact with water or moisture.
- the filtering action improves as the tobacco cylinder burns down since the rayon fibers swell when contacted by the moisture carried by the smoke.
- the smoke components or ingredients which have been filtered out by the base portion of the tobacco cylinder will therefore be more effectively filtered out by the swollen fibers as the base portion of the tobacco cylinder burns.
- Various colored fibers may be used in the filter to pro vide a variety of color schemes for the filter.
- the dye pigment matter may be incorporated with the filament forming spinning solution.
- Undyed extruded filaments, from which the staple is cut, may be dyed by passing the filaments through suitable dye baths.
- aromatics such as perfume or menthol may be incorporated with the filter material to provide a filter having a pleasing arc-ma.
- other desired or essential oils may be incorporated with the filter.
- My tobacco smoke filter plug is porous and has excellent draw properties which permits the smoker to easily pull the smoke through the filter.
- the filter is economical to produce and has sufficient strength and firmness to permit normal processing of the filter when incorporating it with cigarettes or other tobacco smoking article.;.
- the filter plug contains many minute voids or traps because fine denier fibers are used and because the fibers contain a crimp. The traps easily catch and retain the vapor and solid components of the smoke passing therethrough.
- my fibrous element has numerous uses since it has good li aid and moisture retention properties.
- uses other than for tobacco filter material is that of dental saliva pads which are placed within the patients mouth to absorb excess saliva. Tanipons may also be produced from my fibrous absorption mass. The fibrous mass may also be used in other fields of medicine and surgery wherein liquid retentive pads are required.
- Extrusion apparatus for fibrous material comprising an elongated and substantially enclosed forming chamber, means for heating the interior of the chamber, an entrance die in one end of the chamber, an exit die in the opposite end of the chamber, said exit die having 'a smaller bore than the entrance die, and a conduit leading into the chamber for introducing a fluid into said chamber.
- Extrusion apparatus in accordance with claim I having a vent for the chamber adjacent the entrance die.
- Apparatus for continuously softening and forming a running sliver of staple fibers comprising an elongated and substantially enclosed forming chamber, a sliver entrance die at one end of said chamber, means for heating the interior of said chamber, means for introducing a liquid softening agent for the fibers into the chamber, and a siiver exit die of substantially smaller bore than the entrance die at the opposite end of the chamber.
- Extrusion apparatus in accordance with claim 6 having a vent for the chamber adjacent the entrance die.
- Extrusion apparatus in accordance with claim 6 in which the fluid-introducing means is positioned intermediate of the entrance die and the exit die.
- An apparatus for producing an elongated fibrous rod of crimped potentially adhesive fibers and non-adhesive fibers comprising an elongated walled chamber wherein the potentially adhesive fibers are activated, end closures for the walled chamber, means secured to the chamber wall for heating the chamber wall and chamber interior, an entrance die for the fiber mixture extending through one end closure for the chamber, and an exit die for the fiber mixture extending through the opposite end closure for the chamber, the bore of said exit die being smaller than that of the entrance die.
- An apparatus for producing a continuous sliver of crimped potentially adhesive fibers and non-adhesive fibers comprising an elongated walled chamber through which a sliver of the fiber mixture is passed and wherein the potentially adhesive fibers are activated, end closures for the chamber, electrically heated plates secured to the chamber wall for heating the chamber wall and the chamber interior, a conduit extending through the chamber wall for introducing an activating agent for the potentially adhesive fibers, an entrance die for the sliver extending through one end closure of the chamber, flat surfaces on the periphery of said die whereby excess activating agent may escape from the chamber, and an exit die for the sliver extending through the opposite end closure of the chamber, said exit die having a smaller bore than the entrance die.
- An apparatus according to claim 13 having a sharp beveled edge on the downstream end of the entrance die.
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Manufacturing & Machinery (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Description
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US501894A US2812796A (en) | 1955-04-18 | 1955-04-18 | Apparatus for producing an absorbent element for filters |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US501894A US2812796A (en) | 1955-04-18 | 1955-04-18 | Apparatus for producing an absorbent element for filters |
US509000A US2812767A (en) | 1955-05-17 | 1955-05-17 | Absorbent element for filters and the like |
Publications (1)
Publication Number | Publication Date |
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US2812796A true US2812796A (en) | 1957-11-12 |
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ID=27053955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US501894A Expired - Lifetime US2812796A (en) | 1955-04-18 | 1955-04-18 | Apparatus for producing an absorbent element for filters |
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US (1) | US2812796A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3144025A (en) * | 1960-04-25 | 1964-08-11 | Reeves Bros Inc | Tobacco smoke filters |
US3185747A (en) * | 1962-12-26 | 1965-05-25 | Universal Moulded Fiber Glass | Method for initiating an operation for making fiber reinforced plastic articles |
US3224851A (en) * | 1962-01-24 | 1965-12-21 | American Optical Corp | Method of forming a fused energy-conducting device |
US3668045A (en) * | 1969-04-18 | 1972-06-06 | Molins Machine Co Ltd | Apparatus for producing rod-like articles |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2445675A (en) * | 1941-11-22 | 1948-07-20 | William C Lang | Apparatus for producing coated wire by continuous process |
US2483406A (en) * | 1943-11-20 | 1949-10-04 | American Viscose Corp | Process and apparatus for producing fibrous materials |
US2684318A (en) * | 1950-04-03 | 1954-07-20 | Sam M Shobert | Method for fabricating glass rods |
US2773179A (en) * | 1955-06-06 | 1956-12-04 | David M Makow | Electronic circuits for generation of oscillation, frequency conversion, and other functions |
-
1955
- 1955-04-18 US US501894A patent/US2812796A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2445675A (en) * | 1941-11-22 | 1948-07-20 | William C Lang | Apparatus for producing coated wire by continuous process |
US2483406A (en) * | 1943-11-20 | 1949-10-04 | American Viscose Corp | Process and apparatus for producing fibrous materials |
US2684318A (en) * | 1950-04-03 | 1954-07-20 | Sam M Shobert | Method for fabricating glass rods |
US2773179A (en) * | 1955-06-06 | 1956-12-04 | David M Makow | Electronic circuits for generation of oscillation, frequency conversion, and other functions |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3144025A (en) * | 1960-04-25 | 1964-08-11 | Reeves Bros Inc | Tobacco smoke filters |
US3224851A (en) * | 1962-01-24 | 1965-12-21 | American Optical Corp | Method of forming a fused energy-conducting device |
US3185747A (en) * | 1962-12-26 | 1965-05-25 | Universal Moulded Fiber Glass | Method for initiating an operation for making fiber reinforced plastic articles |
US3668045A (en) * | 1969-04-18 | 1972-06-06 | Molins Machine Co Ltd | Apparatus for producing rod-like articles |
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Owner name: KELLOGG CREDIT CORPORATION A DE CORP. Free format text: AGREEMENT WHEREBY SAID HELLER AND RAYONIER RELEASES ALL MORTGAGES AND SECURITY INTERESTS HELD BY AVTEX ON APRIL 28, 1978, AND JAN. 11, 1979, RESPECTIVELY AND ASSIGNS ITS ENTIRE INTEREST IN SAID MORT-AGAGE AGREEMENT TO ASSIGNEE;ASSIGNORS:WALTER E. HELLER & COMPANY, INC. A NY CORP.;ITT RAYONIER INCORPORATED, A DE CORP.;AVTEX FIBERS INC., A NY CORP.;REEL/FRAME:003959/0350 Effective date: 19800326 Owner name: WESTERN AND SOUTHERN LIFE INSURANCE COMPANY THE C/ Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 Owner name: PAUL REVERE LIFE INSURANCE COMPANY THE C/O THE PAU Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 Owner name: BALBOA INSURANCE COMPANY C/O THE PAUL REVERE EQUIT Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 Owner name: WALTER E. HELLER & COMPANY, INC., A CORP. OF DEL. Free format text: AGREEMENT WHEREBY AETNA RELEASES AVTEX FROM ALL MORTAGES AND SECURITY INTERESTS IN SAID INVENTIONS AS OF JANUARY 11,1979, AND ASSIGNS TO ASSIGNEE THE ENTIRE INTEREST IN SAID MORTAGE AGREEMENT TO ASSIGNEE;ASSIGNORS:AETNA BUSINESS CREDIT, INC., A CORP. OF N.Y.;AVTEX FIBERS, INC, A CORP. OF NY;KELLOGG CREDIT CORP., A CORP. OF DEL.;REEL/FRAME:003959/0250 Effective date: 19800326 Owner name: PROVIDENT ALLIANCE LIFE INSURANCE COMPANY C/O THE Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 Owner name: NEW ENGLAND MUTUAL LIFE INSURANCE COMPANY 501 BOYL Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 Owner name: JOHN HANCOCK MUTUAL LIFE INSURANCE COMPANY JOHN HA Free format text: AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED.;ASSIGNOR:AVTEX FIBERS INC. A NY CORP.;REEL/FRAME:003959/0219 Effective date: 19810301 |