USRE28241E - Cranage coupler asskmbly - Google Patents
Cranage coupler asskmbly Download PDFInfo
- Publication number
- USRE28241E USRE28241E US41671473A USRE28241E US RE28241 E USRE28241 E US RE28241E US 41671473 A US41671473 A US 41671473A US RE28241 E USRE28241 E US RE28241E
- Authority
- US
- United States
- Prior art keywords
- latch
- bracket
- plug
- valve
- cover plate
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/60—Couplings of the quick-acting type with plug and fixed wall housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
- F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/6851—With casing, support, protector or static constructional installations
- Y10T137/6966—Static constructional installations
- Y10T137/6969—Buildings
- Y10T137/698—Wall
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T24/00—Buckles, buttons, clasps, etc.
- Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
- Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
- Y10T24/45602—Receiving member includes either movable connection between interlocking components or variable configuration cavity
- Y10T24/45675—Receiving member includes either movable connection between interlocking components or variable configuration cavity having pivotally connected interlocking component
- Y10T24/45696—Requiring manual force thereon to interlock or disengage
- Y10T24/45712—Requiring manual force thereon to interlock or disengage having interlocking portion thereof housed continuously within cavity
Definitions
- the latching device includes a latching unit adapted to engage a compatible plug.
- the latching unit includes a cover plate, a bracket attached thereto and a latching arm mounted to the bracket.
- the latching arm comprises integrally formed hinge, latching and lever portions arranged to permit the plug to be inserted through the cover and into latched engagement with the latch arm.
- the hinge portion is so mounted that rotation of the hinge portion by the lever portion rotates the springloaded latch portion out of engagement with the plug to permit withdrawal of the plug.
- This invention relates generally to a coupler assembly, and has specific reference to an improved quick detachable coupler having a socket assembly adapted for wall mounting as a flush-type station.
- the apparatus of the present invention has application and service in hospitals and laboratories or wherever it is desired to provide one or more conveniently located stations for fluid and suction lines.
- Wall stations for oxygen, nitrous oxide and vacuum, for example, are standard equipment in modern hospitals.
- An important object is directed to the provision of means which may be operated in an extremely simple manner to attach or detach the hose.
- the object is achieved by the provision of an improved coupling assembly whereby an operative connection is made by the simple expedient of inserting plug means on the hose adaptor into the wall receptacle, and release is accomr plished by depressing a latch arm accessible closely adjacent the hose adaptor. All that is required in both instances is a simple one-hand manipulation.
- Yet another object is directed to improved constructional provisions that function automatically to close off the fluid supply at the outlet station when the socket member is removed for the purpose of replacing sealing gaskets or other elements which receive wear in use.
- valve mechanism to provide a primary valve means in Rerissued Nov. 12, 1974 ICC the socket member that is actuated by a tubular plug, and a secondary valve means including a port behind the primary valve means, and a resilient means interconnecting the primary valve means and the secondary valve means tending to hold the secondary valve means open.
- socket member longitudinally adjustable on the base member to permit the forward end of the socket member to be located at a predetermined position, the resilient means interconnecting the primary valve means and the secondary valve means tending to close the primary valve means and to open the secondary valve means regardless of the longitudinally adjusted position of the socket member.
- Still another important object is realized by the provision of a structure that interconnects the head portion of the valve-plug-receiving means to the cover plate for the station, the structure including compatible interconnecting key means to assure that the cover plate having the correct fluid designation will be mounted to the valve body for such fluid.
- the above structure comprises a bracket secured to the cover plate which mounts the head portion of the valve body, the bracket and head portion having the compatible interconnecting key means.
- bracket be secured to and carried by the cover plate in order that it may be considered as a unit for mounting with the valve means.
- This structural arrangement assures that the bracket having the appropriately located key means is always attached directly to the cover plate having the fluid designation corresponding to the location of such key means, and eliminates the possibility of attaching a cover plate havin g the incorrect fluid designation to the bracket.
- the key means includes a key or slot located in a predetermined position on the bracket depending on the fluid designation on the cover plate, the key or slot interfitting respectively a coacting slot or key located in a predetermined position on the head position of the valve body, the predetermined positions of the coacting keys and slots being different for each fluid.
- latch arm Another important objective is realized by the structural arrangement of the latch arm and its mounting on the braket so that the latch arm will effectively lock the latch plug of a hose adaptor, yet is capable of being readily detached.
- FIG. 1 is a perspective view of the hose adaptor and a front elevational view of the flush type station;
- FIG. 2 is a cross sectional view of the coupler station, showing the parts in normal inoperative positions, the latching device being omitted for purposes of clarity;
- FIG. 3 is a cross sectional view of the coupler station showing the hose adaptor connected
- FIG. 4 is a side elevational view of the latch mechanism together with its associated bracket, the cover plate being shown in section;
- FIG. 5 is a rear elevational view of the unit shown in FIG. 4 as seen from the left of FIG. 4;
- FIG. 6 is a top plan view of the unit shown in FIGS. 4 and 5;
- FIG. 7 is a view, partly in cross section, of the key means interconnecting the head portion of the valve body with the bracket in a station for a vacuum, and
- FIG. 8 is a view, partly in cross section, showing the key means interconnecting the head portion and bracket for a particular fluid such as oxygen.
- the coupler assembly consists of the station generally indicated at 10, and a hose adaptor referred to at 11, as indicated in FIG. 1.
- the station 10 includes a valve body 12 consisting of a rear body part 13 and a forward body part 14 interconnected by threads 15.
- the forward valve body part 14 is provided with a longitudinal bore 16 that is open at its outer end.
- the inner end of the forward body part 14 includes a partition 17 in which there is provided a valve port 20.
- the rear body part 13 is provided with a chamber 21 that communicates at its forward end with the bore 16 through the valve port and which is closed at its rear end by wall 22.
- An extensible, tubular socket member 23 is received in longitudinal bore 16, and is carried by the forward body part 14.
- the socket member 23 includes an inner portion 24 slightly spaced from the wall defining bore 16, a threaded portion 25 threadedly engaging the forward valve part 14, and a flanged outer head portion 26.
- the socket member 23 is threadedly, longitudinally adjusted in bore 16 so as to dispose the forward head portion 26 at a predetermined position with respect to the outer surface of the wall in which the station is located. Usually, such position is in substantial alignment with the wall surface in order to realize a flush wall fixture. Any irregularities in the mounting of a receptacle in the wall and in the mounting of the valve body 12 in such receptacle can be compensated for by a simple longitudinal adjustment of socket member 23.
- a secondary valve means is utilized to place a supply pipe 30 selectively in communication with the bore 17 of the forward valve body part 14. Specifically, the supply pipe 30 is placed in communication with the chamber 21 of the rear body part 13 through a side opening 31 formed in the rear body part 13 between the valve port 20 and the rear wall 22.
- a secondary valve element 32 provided by a ball, is located within the chamber 21 and is adapted selectively to regulate flow through the valve port 20.
- a compression spring 33 constituting a resilient means is located within the chamber 21 behind the secondary valve element 32, one end of the spring 33 engaging the secondary valve element 32 and the opposite end engaging the rear wall 22. The spring 33 tends to urge the secondary valve element 32 forwardly in a direction to close the valve port 20.
- the socket member 23 is provided with a longitudinal passage 34 having a reduced forward end portion 35.
- a primary valve element 36 is slidably carried by socket member 23 in passage portion 35.
- the primary valve element 36 consists of a reduced front portion 37 that closely interfits passage portion 35, and an enlarged rear portion that closely interfits the larger rear portion of passage 34.
- the rear portion of the primary valve element 36 is recessed to receive and seat one end of a compression spring 41, the other end of the spring 41 abutting the secondary valve element 32. It will be importantly noted that the spring 41 is located internally of the socket member 23 and in the bore 16, the spring 41 extending through the secondary valve port 20 and tending to urge the primary and secondary valve elements 36 and 32 apart.
- a valve seat or shoulder 42 is located in passage 34 and is adapted to abut a shoulder 43 interconnecting the reduced front portion 37 and the rear portion of primary valve element 36.
- a plurality of openings 44 are formed laterally in the forward portion 37 of the primary valve element 36, the openings 44 placing the portion of passage 34 ahead of the front valve portion 37 in communication with the portion of passage 34 behind the primary valve element 36, when shoulders 42 and 43 are separated.
- the spring 41 tends to urge the primary valve element 36 forwardly to a closed position as shown in FIG. 2 in which valve shoulder 43 abuts the passage shoulder 42, and in which the front portion 37 of the primary valve element 36 extends to the end of the socket member 23 to provide a dust shield.
- Elastic O-ring 45 carried by primary valve element 36, and O-ring 46 carried by the end of socket member 23 serve to prevent fluid from passing between the reduced passage portion 35 and the reduced primary valve portion 37.
- the hose adaptor 11 consists of a bridge piece 47 which carries a tubular valve plug 50 and a latch plug 51.
- One end of valve plug 50 is attached to a hose 52 (FIG. I), while the other end is adapted to be inserted into the passage 34 of socket member 23.
- the innermost end of valve plug 50 is tapered and is provided with a series of openings 53 communicating with the bore 54 of the plug.
- the station includes a cover plate 55 having a valve plug-receiving opening 56 and a latch plug-receiving oper1- ing 57 adapted respectively to receive the valve plug 50 and latch plug 51 upon insertion of the adaptor 11.
- a bracket generally indicated at 60 is secured to the rear of the cover plate 55 by a pair of hollow rivets 61 passing through the cover plate 55 and the front plate 62 of the bracket.
- the bracket 60 includes a pair of rearwardly extending side flanges 63 and 64 adapted to receive therebetween the head portion 26 of the socket member 23.
- the head portion 26 is provided with flat sides 65 that engages the spaced bracket flanges 63 and 64.
- the head portion 26 is secured in place by a plurality of screws 66 (FIGS. 2 and 3) extending through the hollow rivets 61.
- the latching device is carried by the bracket 60 so that the cover plate 55, bracket 60 and the latching device is considered as a unit for reasons which will be later described in detail.
- the latching device includes an elongated rod bent to provide a hinge portion 69 extending between and pivotally mounted in rearwardly extending side flange portions 67 and 68.
- the latch rod is then revcrsely bent to provide a latch portion 70 extending substantially parallel with the hinge portion 69 and located immediately behind a latch plug-receiving hole 71 formed in the bracket front plate 62, the hole 71 being aligned directly with the coacting plug-receiving opening 57 formed in the cover plate 55.
- the front bracket plate 62 also includes a hole 72 aligned directly with a coacting valve plug-receiving opening 56 formed in the cover plate 55.
- the lower margins of the side flanges 63 and 64 are provided with notches 73 that receive the latch portion 70.
- the latch portion 70 includes a cam 74 that is engageable by the latch plug 51 upon insertion of the hose adaptor 11 into the station, the latch plug 51 moving the latch portion 70 downwardly out of its path until the adaptor 11 is fully inserted, at which time the catch abutment 75 of the plug 51 is aligned directly with the latch portion 70. As will be understood, the latch portion 70 is urged upwardly into engagement with the catch abutment 75 to lock the latch plug 51 in place.
- the latch rod has a lever portion 76 extending upwardly from the latch portion 70, the lever portion 76 being bent forwardly for a projection through a slot 77 formed in the cover plate 55. That portion of the lever 76 extending outwardly through the cover plate 55 constitutes a handle 80 that can be depressed to actuate the latching device to release the latch plug 51.
- the resilient means tending normally to hold the latch arm portion 70 up within the bracket notches 73 consists of a torsion spring 81 located between the flange extensions 67 and 68 and about the hinge portion 69. One end 82 of the spring 81 is anchored to the flange extension 67, while the opposite end 83 bears against the underside of the latch portion 70.
- a key means is utilized to interconnect the head portion 26 of the tubular socket member 23 with the bracket 60 in order to assure that the cover plate 55 having the correct fluid designation, such as oxygen, is connected to the valve body 12 for such fluid.
- the head portion 26 (FIG. 8) is provided with a slot or recess 84 located in a predetermined position.
- the bracket flange 64 is provided with an inturned key 85 at a predetermined location adapted to interfit the key slot 84, thereby allowing the positioning and mounting of the head member 26 in the bracket 60 with the valve plug-receiving openings 56 and 72 aligned with the passage portion of the socket member 23.
- the key formed on the bracket 60 would be located in another predetermined position and would not interfit the key slot 84, and would therefore preclude mounting of the bracket 60 onto the head portion 26.
- Each fluid designation on the cover plate 55 requires a particularly located key adapted to interfit a compatible key slot on the head portion which is located in a predetermined position for such fluid. This key means will, for example, preclude the attachment of a cover plate 55 having a designation other than oxygen onto the valve body 12 which is attached to the oxygen supply pipe.
- FIG. 7 wherein the bracket 60 is provided with an inturned key 86 from the side flange 63.
- the head portion 26 of the valve body 12 is provided with a coacting slot or recess 87 adapted to receive the key 86 upon mounting of the head portion 26 to the bracket 60.
- the particular bracket 60 having the key 86 is secured to the cover plate 55 that carries a designation of a vacuum.
- the valve body 12 containing the head portion 26 of FIG. 7 is adapted for a vacuum station.
- bracket 60 of FIG. 7 having a cover plate designation of a vacuum could not be mounted onto the head portion 26 of FIG. 8 in which the valve body is adapted for oxygen.
- cover plates having different fluid designations is assured in that they will be at all times attached to the correct valve bodies for such fluids.
- the cover plate 55 bearing the designation of a vacuum together with its associated bracket 60 is provided with a rectangular opening 90 (FIG. 7), which is adapted to receive closely a correspondingly formed rectangular latch plug (not shown) on the hose adaptor for a suction line.
- a suction line having an adaptor with a rectangularly shaped plug cannot be inserted into an oxygen outlet station because it will not pass through the circular cover plate opening 57 or the circular bracket opening 71.
- an oxygen line for example, having an adaptor 11 with a circular latch plug 51 cannot be inserted into a vacuum station because such latch plug 51 will not pass through the rectangularly shaped cover plate and bracket opening 90.
- valve body 12 is mounted in the wall and connected to the supply pipe 30 in the conventional manner, and that the socket member 23 is threadedly adjusted longitudinally to bring the head portion 26 flush with the wall surface.
- the valve body 12 is to dispense oxygen, in which case, the head portion 26 is provided with a key slot 84 located in a predetermined position as shown in FIG. 8.
- the cover plate 55 together with its associated bracket 60 and latching device, all considered as a unit, is applied over the head portion 26.
- the appropriate cover plate 55 bears the fluid designation of oxygen, and the bracket 60 has a suitably located key 85 that interfits the key slot 84 of the head portion 26.
- Screws 66 are applied through the hollow rivets 61 and threadedly attached to the head portion 26.
- the component parts of the valve mechanism assume the positions illustrated in FIG. 2.
- the spring 41 tends to urge the primary valve element 36 forwardly so that shoulder 43 bears against passage shoulder 42, and that the O-rings 45 and 46 provide a seal.
- the spring 41 tends to urge the secondary valve element 32 rearwardly away from the valve port 20 against the loading of the weaker spring 33.
- the spring 41 acts in the above manner regardless of the longitudinal position of the socket member 23.
- valve plug 50 is inserted into the passage portion 35 of socket member 23, and the latch plug 51 is inserted into the aligned cover plate and bracket openings 57 and 71.
- valve plug 50 As the valve plug 50 is moved inwardly, the plug 50 depresses the primary valve element 36 rearwardly against the action of spring 41 and against the pressure exerted by the secondary valve element 32.
- the forward end 37 of the primary valve element 36 clears the close-fitting reduced passage portion 35 of passage 34, and hence the valve plug 50 is placed in communication with the bore 16.
- the spring 41 As the spring 41 is compressed upon rearward movement of the primary valve element 36, such spring 41 moves the secondary valve element 32 rearwardly away from the valve port 20 and substantially against the rear wall 22 of chamber 21, thereby opening the valve port 20 fully. It is seen that the supply pipe 30 is now placed in direct communication with the bore 16 through the valve port 20, and hence placed in communication with the valve plug 50.
- the latch plug 51 As the latch plug 51 is moved inwardly it engages the cam 74 of the latch portion 70 and pivots the latch arm about its hinge connection so that the latch portion 70 is moved out of the path of the latch plug 51 until the catch abutment 75 is aligned with the latch portion 70. At which time, the adaptor 11 is fully inserted and the torsion spring 81 operates to urge the latch arm 70 into operative engagement with the catch abutment 75 to preclude withdrawal of the adaptor 11.
- the latch handle is depressed to swing the latch portion 70 downwardly away from the catch abutment 75 of the latch plug 51. While the latch handle 80 is held in this depressed position, the adaptor 11 is simply withdrawn from the station 10.
- the spring 41 urges the primary valve element 36 forwardly to its initial position previously described in which the primary valve element shoulder 43 engages the passage shoulder 42 and in which the O-rings 45 and 46 provide an effective seal between the primary valve element 36 and the reduced passage portion 35.
- the latch handle 80 can be released.
- the torsion spring 81 will urge the latch portion 70 upwardly into the bracket notches 73 which determine its effective position aligned immediately behind the cover plate and bracket openings 57 and 71, the latching device being therefore conditioned for subsequent use.
- the cover plate 55 together with its attached bracket and latching device considered as a unit is detached from the head portion 26 by removal of the screws 66. Then, the socket member 23 can be threadedly detached from the valve body 12. Removed with the socket member will be the primary valve element 36 and the compression spring 41. Upon removal of the spring 41, the other spring 33 will urge the secondary valve element 32 forwardly in the chamber 21 to close the valve port 20, thereby precluding any flow of fluid through the supply pipe 30 and valve body 12 while replacement of such parts is made.
- a latching device for a pair of relatively movable members comprising:
- a latching unit adapted to be mounted on the other member including a cover plate with an opening therethrough to receive the latch plug
- a latch arm including an integral hinge portion pivotally mounted to the bracket and an integral latch portion disposed in spaced relation from the hinge portion and extending across the plate opening in the path of the plug, the latch portion engaging the plug abutment when the plug is inserted,
- the latch arm having an integral lever portion extending through the cover plate for actuation to pivot the latch arm and release the plug
- the latching unit including a stop means engageable by the latch arm to determine the latch portion position in alignment with the plate opening and the path of the plug.
- the bracket includes a pair of spaced flanges and the hinge portion extends between said flanges in pivotal relation thereto, and
- the resilient means is a torsion spring located between the bracket flanges and about the hinge portion, said spring having one end engaging the bracket and the other end engaging the latch portion, whereby to urge the latch portion against the bracket in the latch disengaged condition.
- a latching unit for a coupler plug comprising:
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Description
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US41671473 USRE28241E (en) | 1963-12-09 | 1973-11-16 | Cranage coupler asskmbly |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US32931963A | 1963-12-09 | 1963-12-09 | |
US41671473 USRE28241E (en) | 1963-12-09 | 1973-11-16 | Cranage coupler asskmbly |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE28241E true USRE28241E (en) | 1974-11-12 |
Family
ID=26986738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US41671473 Expired USRE28241E (en) | 1963-12-09 | 1973-11-16 | Cranage coupler asskmbly |
Country Status (1)
Country | Link |
---|---|
US (1) | USRE28241E (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2431649A1 (en) * | 1978-07-19 | 1980-02-15 | Installation Hospitaliere Sani | Wall-mounted gas valve and adaptor for hospital - uses dowels and sockets in abutting radial faces to prevent adaptor rotation w.r.t. valve |
DE3422022A1 (en) * | 1984-06-14 | 1985-12-19 | Drägerwerk AG, 2400 Lübeck | Retaining device for hoses |
-
1973
- 1973-11-16 US US41671473 patent/USRE28241E/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2431649A1 (en) * | 1978-07-19 | 1980-02-15 | Installation Hospitaliere Sani | Wall-mounted gas valve and adaptor for hospital - uses dowels and sockets in abutting radial faces to prevent adaptor rotation w.r.t. valve |
DE3422022A1 (en) * | 1984-06-14 | 1985-12-19 | Drägerwerk AG, 2400 Lübeck | Retaining device for hoses |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: ALLIED HEALTHCARE PRODUCTS, INC. Free format text: CHANGE OF NAME;ASSIGNOR:CHEMETRON-MEDICAL PRODUCTS, INC.;REEL/FRAME:003925/0807 Effective date: 19810227 |
|
AS | Assignment |
Owner name: BANCBOSTON FINANCIAL COMPANY (THE LENDER) Free format text: SECURITY INTEREST;ASSIGNOR:ALLIED HEALTHCARE PRODUCTS, INC. A CORP. OF DE.;REEL/FRAME:004444/0863 Effective date: 19850612 |
|
AS | Assignment |
Owner name: ALLIED HEALTHCARE PRODUCTS, INC. Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:BANE BOSTON FINANCIAL COMPANY;REEL/FRAME:006329/0348 Effective date: 19920831 |