US3158152A - Mouth to mouth resuscitator - Google Patents
Mouth to mouth resuscitator Download PDFInfo
- Publication number
- US3158152A US3158152A US56458A US5645860A US3158152A US 3158152 A US3158152 A US 3158152A US 56458 A US56458 A US 56458A US 5645860 A US5645860 A US 5645860A US 3158152 A US3158152 A US 3158152A
- Authority
- US
- United States
- Prior art keywords
- mouthpiece
- mouth
- operator
- patient
- passage
- 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
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/0048—Mouth-to-mouth respiration
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
- A61M16/10—Preparation of respiratory gases or vapours
- A61M16/12—Preparation of respiratory gases or vapours by mixing different gases
Definitions
- the invention relates to resuscitation for persons whose breathing has been temporarily impaired and consists of essentially a device the purpose of which is to provide a means for month to mouth resuscitation without the necessity of direct exchange of respiratory gases between the patient and the administrator or operator, the device being further one for controlling the tidal volume displacement and thoracic pressure.
- the invention is directed to a device, one end of which is insertable into the mouth of a patient and the other end of which is applicable to the mouth of an operator, there being provided a divided chamber therebetween, separated by a flexible partition and sundry valving so arranged that the patient inhales fresh air independently of the operator who also inhales only fresh air.
- artificial respiration technique is the quickest and'most commonly employed because, when resuscitation is needed the need is urgent and immediate and it must be practiced without delay if the patient on many occasions is to survive. Needless to say the practice of artificial respiration of the kind described is eifective only in the hands of persons conversant with the technique and although badly needed often-times fails to produce the necessary result because of lack of skill on the part of persons immediately available.
- respirator devices such as the commonly known pulmotor have been employed.
- These devices supplied by artificial pumps are capable of being regulated to a more realistic rhythm and have the advantage of an adequate amount of power by means of which to force fresh air into the lungs.
- the devices heretofore available however have been somewhat complicated, expensive to procure; and of such construction that unless handled by experts damage to the patient may be suffered.
- mouth to mouth resuscitation has been practiced by a technique which requires the operator to place his own mouth over the mouth of the patient, thereby to breathe air from the lungs of the operator into the lungs of the patient.
- this direct method is physically less tiring for the operator, it has the singular disadvantage of making it necessary to breathe into the lungs of the patient air having a heavy portion of carbon dioxide exhaled by the operator and hence deprives the patient of an abundance of oxygen such as would be present in the natural air.
- the patient may have been subjected to discomfort resulting in nausea it becomes extremely difficult for the operator to overcome a degree of physi cal repulsion to the extent necessary to administer direct mouth to mouth resuscitation.
- Another object of the invention is to provide a new and improved device for the performance of mouth to mouth resuscitation which is capable of minimizing fatigue on the part of the operator while at the same time affording the patient the opportunity to breathe natural air and exhale naturally.
- Still another object of the invention is to provide ,a new and improved apparatus for enabling the performance of mouth to mouth resuscitation which incorporates safety features in that the apparatus is built with a maximum capacity no greater than that which is a safe capacity for the lungs of the patient which capacity cannot be exceeded regardless of the inexperience of the operator.
- Still another object'of the invention is to provide a new and improved apparatus for the performance of mouth to mouth resuscitation which makes a direct physical contact between the patient and the operator unnecessary.
- Also included among the objects of the invention is to provide a new and improved mouth to mouth resuscitation device which is relatively inexpensive, which is compact and therefore easily portable and which, moreover, is positive and safe in its action, to thereby greatly improve the administration of artificial respiration where needed.
- the invention consists of the construction, arrangement and combination of the various parts of the device whereby the objects contemplated are attained, as hereinafter set forth, pointed out inthe appended claims, and illustrated in the accompanying drawings.
- FIGURE 1 is a longitudinal sectional view of the device of the invention in its most complete form.
- FIGURE 2 is a side elevational View of a more simplified form of the device with a portion broken away.
- FIGURE 3 is a cross-sectional view taken on the line 33 of FIGURE 1.
- FIGURE 4 is a schematic View of the device drawn to a smaller scale and illustrating the application of air ally by the reference character IZco-nsists of a part 13 and a part 14 which are secured together adjacent flanges 15 and 16 respectively by means of some appropriate fastening means such as screws 17. Between the flanges there is secured a flexible diaphragm is which is reinforced over its central area by the presence of a rigid cup 19 in a form such that the diaphragm is adapted to flex adjacent its outer perimeter. The diaphragm being secured in seal relationship between the flanges l5 and 16 provides within the housing two chambers namely a gas supply chamber 20 and a gas pressure chamber 21.
- a spring 22 one end of which is received in the cup I? and the other end of which is adapted to press against an end wall 23 of the housing 12. Action of the spring 22 serves normally to bias the diaphragm in a direction away from the end wall 23 and toward an end wall 24, thus to normally open the supply chamber 20 to its condition of maximum capacity.
- a check valve device 28 is contained within a fitting 29 in the end wall 23 and comprises a valve element 30 secured at the center by a valve stem 31 to a spider 32.
- a check valve device wherein 3. the valve element 34 is of flexible resilient character such that it flexes away from the seat 33 when gas or air is sent through an inlet port or passage 34 into the supply chamber 20; The valve elementreseats upon the seat whenever pressure is exerted upon the gas within the supply chamber 29.
- a passage 35 for air which is in communication past a combination inhalation-exhalation composite valve device 36.
- a bushing 37 defines an aperture 38 forming a passage in communication with the supply chamber 26'.
- a nipple 39 to which the patient mouthpiece l d is secured includes a flange 4% having lateral openings 41 therein and which is made use of to secure the nipple tothe bushing.
- the valve element 42 in the chosen embodiment has an annular flexible bead 44 which under operating conditions permits a mid-portion 45 to shift from left to right as viewed in FIGURE 1. serve as a valve element and to seat upon an annular valve seat 46 which is part of the nipple 39.
- a flexible check valve element 43 In thernid-portion 45 are openings 47 and mounted upon the mid-portion is a flexible check valve element 43.
- a stem idol the check valve element securely fastens the check valve element to the mid-portion at its center.
- the check valve element 43 includes a flexible head 56 in the chosen embodiment which permits the outer perimeter of the check valve cle merit to lift from an annular valve seat 51.
- the operator mouthpiece 11 is connected thereto by means or" a tube 52 which forms a passage 53.
- a bushing 54 mounted centrally in the end wall 24 providing a passage 55 therethrough in combination with the pressure chamber 21, the passage 53 and the area within the operator mouthpiece 11 may be aptly described as a composite pressure cavity.
- a flange 56 upon which is seated the outer annular portion of a valve element 57.
- the bushing 54 is providedwith a flange 58 having openings 59' therethrough which establish a pressure vent port.
- an annular valve seat 60 upon which a mid-portion 61 of the valve element 57 is adapted to seat.
- the valve element includes a flexible head 62 in the chosen embodiment which permits the mid-portion to move from left to right away from the seat 69 and to return thereto at appropriate phases of the cycle.
- a flexible valve element 63 which being likewise provided with a flexible beaded portion or bead 64 is enabled to have the rim thereof move from right to left away from an appropriate annular seat 65 at appropriate phases of the cycle.
- a valve stem 66 is employed to anchor the valve element 63 to the mid-portion 61 of the valve element 57.
- a valve element 68 of flexible character similar to the valve element 30 is secured by means of the stem 69 to a spider 70' in such fashion that when air or gas passes into the inlet port 67 through openings 71 the valve element 68 is lifted from a seat 72 thereby to admit air or gas into the passage 53.
- the operator mouthpiece is of such character that an extension 73 thereon may have a snug slip fit over the tube 52 in such manner that when needed the mouthpiece can be removed for replacement by another mouthpiece which may be a newly sanitized mouthpiece or one belonging to a different operator.
- the device in the form described is well suited to use in atmosphere occasions may arise where the at- The mid-portion is adapted to On the bushing 54 there mosphere is contaminated with smoke, toxic fumes or irritants to the extent that pure oxygen or purified air may be preferable.
- a tank 75 of oxygen may be attached by means of a hose 76 to the 4 fitting 29 at the patient side of the housing.
- a tank 77 of oxygen or other gas may be attached by a hose 78 to the fitting 67 thereby to substitute a selected gas for the normally surrounding atmosphere.
- the patient mouthpiece is inserted between the teeth of the mouth of the patient.
- the operator then up plies his mouth to the operator mouthpiece 11 and when passinto the pressure chamber 21.
- the operator can continue to exhale through this phase of the cycle wherein the diaphragm 18 is moved from right to left as viewed in FIGURE 1 until the cup rests against the end wall 23.
- air which is within the supply chamber 20 will pass through the aperture 38, openings d7 in the valve element 42 and lift the valve element 48' from its position upon the seat 51 thereby gaining access to the passage 35 and the oral cavity of the patient.
- the fresh air may constitute pure oxygen or other gas supplied to either the patient, operator or both, but that upon exhaling respiratory gases from the patient, operator or both are expelled outwardly to the suroundingatmosphere.
- valveving has been omitted from the operator side of the device where a straight tube 39 is employed to connect the operator mouthpiece 11 with a bushing 81 on the part 14 of the housing 12. Valving is also omitted from the bushing 81.
- the valves previously described, however, are employed on the patient side.
- the housing provides a supply chamber 20 the maximum capacity of which is adapted to the type of pa tient to whom the resuscitation is to be administered.
- the supply passage customarily is. made with a capacity of about cubic centimeters which is a volume very slightly in excess of the need of an infant.
- the supply chamber is made with a capacity of about 800 cubic centimeters.
- a device of the last described capacity is also suitable for children even though the lung capacity of children may be as low as 300 cubic centimeters for the reason that with children over pressuring is not harmful, at least to an extent defined by the maximum capacity herein made reference to.
- a mouth to mouth resuscitator comprising a supply chamber member and a pressure chamber member attached to the supply chamber member, an imperforate movable partition separating the interiors of said members from communication with each other, an operator mouthpiece in communication with the interior of the pressure chamber member, a patient mouthpiece in communication with the interior of said supply chamber member, the interior of said supply chamber member and a space adjacent the operator mouthpiece each having a separate fresh gas supply port in communication between the respective interior and the exterior, each said supply port having an inflow check valve therein, a passageway between the interior of each of the chamber members and the respective mouthpiece, the passageway adjacent the patient mouthpiece having an inflow check valve therein and the other passageway having an outflow check valve therein, and a valved vent port from the pressure chamber member and from the passageway adjacent the patient mouthpiece to the exterior.
- a mouth to mouth resuscitator comprising a mouth piece insertable in the oral cavity of a patient, and having a passage therethrough, means forming a gas supply chamber of variable size in communication with said passage, means forming a gas pressure chamber, and an operator mouthpiece in communication with said pressure chamber, said supply chamber having a maximum fixed capacity not exceeding a normal expanded lung capacity of the patient, a movable partition separating said chambers, and means operably associated with said partition biased in a direction moving said partition to a position enlarging said supply chamber to maximum capacity, a supply port in communication with said supply chamber having a check valve therein open to inflow of gas, a double acting check valve device between the supply chamber and said passage, said check valve device having an element movable to open position under flow of gas from said chamber to said passage and to closed position under flow of gas from said passage, an exhaust port means between said passage and atmosphere, and another element of said check valve device in said passage and movable to a position closing said exhaust port under flow of gas from said chamber to
- a mouth to mouth resuscitator comprising a mouth-.
- a housing having a flexible partition therein dividing said housing into a gas supply chamber of variable size and a gas pressure chamber of variable size, said supply chamber having a maximum fixed capacity not exceeding a normal expanded lung capacity of the patient, said supply chamber being in communication with said passage, and resilient means operably associated with said partition biased in a direction moving said partition to a position enlarging said supply chamber to maximum capacity, a supply port in communication with said supply chamber having a check valve therein open to inflow of gas, a check valve element in said passage movable to open position under flow of gas from said chamber to said passage and to closed position under fiow of gas from said passage, an exhaust port means between said passage and atmosphere, a check valve element between said passage and said exhaust port and movable to a position closing said exhaust port under flow of gas from said chamber to said passage and to a position opening said exhaust port under flow of gas from said passage, an operator mouthpiece, a tube connecting said operator mouthpiece and said housing
- a mouth to mouth resuscitator comprising a mouthpiece insertable in the oral cavity of a patient and having a passage therethrough, a housing having a flexible partition therein dividing said housing into a gas supply chamber and a gas pressure chamber both of variable size, said supply chamber having a maximum capacity not exceeding a normal expanded lung capacity of the patient, said 7 supply chamber being in communication with said passage, and resilient means operably associated with said partition biased in a direction moving said partition to a position enlarging said supply chamber to maximum capacity, a supply port in communication with said supply chamber having a single acting check valve therein open to inflow of gas, a double acting check valve device between the supply chamber and said passage having two valve elements, one of said valve elements being movable to open position under flow of gas from said chamber to said passage and to closed position under flow of gas from said passage, an exhaust port means between said passage and atmosphere, and another of said valve elements being in said passage and movable to a position closing said exhaust port under flow of gas from said chamber to said passage and to
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- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Percussion Or Vibration Massage (AREA)
Description
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US56458A US3158152A (en) | 1960-09-16 | 1960-09-16 | Mouth to mouth resuscitator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US56458A US3158152A (en) | 1960-09-16 | 1960-09-16 | Mouth to mouth resuscitator |
Publications (1)
Publication Number | Publication Date |
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US3158152A true US3158152A (en) | 1964-11-24 |
Family
ID=22004538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US56458A Expired - Lifetime US3158152A (en) | 1960-09-16 | 1960-09-16 | Mouth to mouth resuscitator |
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Country | Link |
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US (1) | US3158152A (en) |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3286710A (en) * | 1962-02-09 | 1966-11-22 | Jr Roscoe G Bartlett | Apparatus for use in mouth-to-mouth resuscitation |
US3352304A (en) * | 1964-11-30 | 1967-11-14 | Jr Roscoe G Bartlett | Mask-to-mask resuscitation systems |
US3375759A (en) * | 1966-05-18 | 1968-04-02 | Bourns Inc | Rolling-diaphragm pump |
US3396725A (en) * | 1964-01-17 | 1968-08-13 | Drager Otto H | Respirator with negative pressure limiting valve |
US3467093A (en) * | 1966-12-09 | 1969-09-16 | Sierra Eng Co | Oxygen mask and valve structure |
US3474785A (en) * | 1966-02-15 | 1969-10-28 | Aga Ab | Intermittent positive pressure resuscitator |
US3512521A (en) * | 1965-12-06 | 1970-05-19 | William C Jones | Breath isolator for pulmonary function testing |
US3905362A (en) * | 1973-10-02 | 1975-09-16 | Chemetron Corp | Volume-rate respirator system and method |
US3918447A (en) * | 1972-08-19 | 1975-11-11 | John S Inkster | Ventilators |
US3939830A (en) * | 1975-03-10 | 1976-02-24 | Da Costa Harry | Manually operable dechoking and resuscitating device |
US4051852A (en) * | 1975-06-26 | 1977-10-04 | The Kendall Company | Aspirating device |
US4119101A (en) * | 1976-03-01 | 1978-10-10 | Victor Igich | Multiple lumen endotracheal tube and cuff with limited inflation and pressure |
US4811730A (en) * | 1988-07-18 | 1989-03-14 | Seitz Corporation | CPR face mask and method of using same |
WO1992011053A1 (en) * | 1990-12-21 | 1992-07-09 | Don Michael T Anthony | Resuscitation aid |
WO1997011733A1 (en) * | 1995-09-27 | 1997-04-03 | Richard Melker | Universal ventilation device |
US5829429A (en) * | 1997-04-21 | 1998-11-03 | Hughes; Arthur R. | Acoustic respiratory therapy apparatus |
US6578574B1 (en) * | 1998-03-31 | 2003-06-17 | Ambu International A/S | Device for administering artificial respiration to a patient |
US20070113843A1 (en) * | 2005-11-23 | 2007-05-24 | Hughes Arthur R | Acoustic respiratory therapy apparatus |
US20080257351A1 (en) * | 2007-04-19 | 2008-10-23 | David Gitschlag | Resuscitation device |
US20110152794A1 (en) * | 2009-12-17 | 2011-06-23 | Carver Alan R | Throat obstruction dislodging device and method for its use |
CN108553721A (en) * | 2017-12-20 | 2018-09-21 | 李强 | It is a kind of can be with the oropharyngeal airway of life-kiss |
USD982736S1 (en) * | 2022-12-29 | 2023-04-04 | ChongQing Moffy Innovation Technology Co., Ltd. | Choking rescue device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2428451A (en) * | 1945-02-17 | 1947-10-07 | John H Emerson | Pressure resuscitator |
US2766753A (en) * | 1954-04-15 | 1956-10-16 | Dragerwerk Fa | Apparatus for artificial respiration, in particular for purposes of anesthesia |
US2887104A (en) * | 1958-03-12 | 1959-05-19 | Sovinsky Eugene | Mask to mask resuscitator |
FR1204285A (en) * | 1958-07-07 | 1960-01-25 | Breath control valve | |
FR1207372A (en) * | 1958-11-13 | 1960-02-16 | Insufflation artificial respiration machine |
-
1960
- 1960-09-16 US US56458A patent/US3158152A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2428451A (en) * | 1945-02-17 | 1947-10-07 | John H Emerson | Pressure resuscitator |
US2766753A (en) * | 1954-04-15 | 1956-10-16 | Dragerwerk Fa | Apparatus for artificial respiration, in particular for purposes of anesthesia |
US2887104A (en) * | 1958-03-12 | 1959-05-19 | Sovinsky Eugene | Mask to mask resuscitator |
FR1204285A (en) * | 1958-07-07 | 1960-01-25 | Breath control valve | |
FR1207372A (en) * | 1958-11-13 | 1960-02-16 | Insufflation artificial respiration machine |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3286710A (en) * | 1962-02-09 | 1966-11-22 | Jr Roscoe G Bartlett | Apparatus for use in mouth-to-mouth resuscitation |
US3396725A (en) * | 1964-01-17 | 1968-08-13 | Drager Otto H | Respirator with negative pressure limiting valve |
US3352304A (en) * | 1964-11-30 | 1967-11-14 | Jr Roscoe G Bartlett | Mask-to-mask resuscitation systems |
US3512521A (en) * | 1965-12-06 | 1970-05-19 | William C Jones | Breath isolator for pulmonary function testing |
US3474785A (en) * | 1966-02-15 | 1969-10-28 | Aga Ab | Intermittent positive pressure resuscitator |
US3375759A (en) * | 1966-05-18 | 1968-04-02 | Bourns Inc | Rolling-diaphragm pump |
US3467093A (en) * | 1966-12-09 | 1969-09-16 | Sierra Eng Co | Oxygen mask and valve structure |
US3918447A (en) * | 1972-08-19 | 1975-11-11 | John S Inkster | Ventilators |
US3905362A (en) * | 1973-10-02 | 1975-09-16 | Chemetron Corp | Volume-rate respirator system and method |
US3939830A (en) * | 1975-03-10 | 1976-02-24 | Da Costa Harry | Manually operable dechoking and resuscitating device |
US4051852A (en) * | 1975-06-26 | 1977-10-04 | The Kendall Company | Aspirating device |
US4119101A (en) * | 1976-03-01 | 1978-10-10 | Victor Igich | Multiple lumen endotracheal tube and cuff with limited inflation and pressure |
US4811730A (en) * | 1988-07-18 | 1989-03-14 | Seitz Corporation | CPR face mask and method of using same |
WO1992011053A1 (en) * | 1990-12-21 | 1992-07-09 | Don Michael T Anthony | Resuscitation aid |
WO1997011733A1 (en) * | 1995-09-27 | 1997-04-03 | Richard Melker | Universal ventilation device |
US5628305A (en) * | 1995-09-27 | 1997-05-13 | Richard J. Melker | Universal ventilation device |
US5829429A (en) * | 1997-04-21 | 1998-11-03 | Hughes; Arthur R. | Acoustic respiratory therapy apparatus |
US6167881B1 (en) | 1997-04-21 | 2001-01-02 | Vibralung Llc | Acoustic respiratory therapy apparatus |
US6578574B1 (en) * | 1998-03-31 | 2003-06-17 | Ambu International A/S | Device for administering artificial respiration to a patient |
US7617821B2 (en) | 2005-11-23 | 2009-11-17 | Vibralung, Inc. | Acoustic respiratory therapy apparatus |
US20070113843A1 (en) * | 2005-11-23 | 2007-05-24 | Hughes Arthur R | Acoustic respiratory therapy apparatus |
US20100022923A1 (en) * | 2005-11-23 | 2010-01-28 | Vibralung, Inc. | Acoustic respiratory therapy apparatus |
US8082920B2 (en) | 2005-11-23 | 2011-12-27 | Vibralung, Inc. | Acoustic respiratory therapy apparatus |
US8443796B2 (en) | 2005-11-23 | 2013-05-21 | Vibralung, Inc. | Acoustic respiratory therapy apparatus |
US20080257351A1 (en) * | 2007-04-19 | 2008-10-23 | David Gitschlag | Resuscitation device |
US20110152794A1 (en) * | 2009-12-17 | 2011-06-23 | Carver Alan R | Throat obstruction dislodging device and method for its use |
CN108553721A (en) * | 2017-12-20 | 2018-09-21 | 李强 | It is a kind of can be with the oropharyngeal airway of life-kiss |
USD982736S1 (en) * | 2022-12-29 | 2023-04-04 | ChongQing Moffy Innovation Technology Co., Ltd. | Choking rescue device |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: CAPTECH INC. Free format text: NUNC PRO TUNC ASSIGNMENT;ASSIGNOR:SIERRA ENGINEERING CO.;REEL/FRAME:003996/0923 Effective date: 19690728 Owner name: SCOTT AVIATION-SIERRA PRODUCTS, INC., Free format text: CHANGE OF NAME;ASSIGNOR:TEXACE CORPORATION;REEL/FRAME:003996/0919 Effective date: 19781110 Owner name: TEXACE CORPORATION A CORP. OF TEX. Free format text: CHANGE OF NAME;ASSIGNOR:CAPTECH INC.;REEL/FRAME:003996/0930 Effective date: 19781110 |
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Owner name: FIGGIE INTERNATIONAL INC., 4420 SHERWIN RD. WILLOU Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SCOTT AVIATION-SIERRA PRODUCTS, INC.;REEL/FRAME:003961/0236 Effective date: 19811105 |
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Owner name: SINGER COMPANY, THE, EIGHT STAMFORD FORUM, STAMFOR Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:VARTOUKIAN, ARTIN G.;REEL/FRAME:003993/0132 Effective date: 19811216 Owner name: SINGER COMPANY, THE,CONNECTICUT Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VARTOUKIAN, ARTIN G.;REEL/FRAME:003993/0132 Effective date: 19811216 |