US1306391A - Valve. - Google Patents

Valve. Download PDF

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Publication number
US1306391A
US1306391A US21639718A US1306391A US 1306391 A US1306391 A US 1306391A US 21639718 A US21639718 A US 21639718A US 1306391 A US1306391 A US 1306391A
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United States
Prior art keywords
valve
wings
conduit
plate
ring
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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Hippolyte Romanoff
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Individual
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Priority to US21639718 priority Critical patent/US1306391A/en
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Publication of US1306391A publication Critical patent/US1306391A/en
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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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/1401—Check valves with flexible valve members having a plurality of independent valve members
    • 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
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/148—Check valves with flexible valve members the closure elements being fixed in their centre
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
    • F16K15/031—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member the hinge being flexible
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
    • F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
    • F16K15/036—Dual valve members with hinges crossing the flow line substantially diametrical
    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
    • F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
    • F16K15/036—Dual valve members with hinges crossing the flow line substantially diametrical
    • F16K15/038—Dual valve members with hinges crossing the flow line substantially diametrical having a common hinge
    • 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
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F16K15/1402—Check valves with flexible valve members having an integral flexible member cooperating with a plurality of seating surfaces
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7838—Plural
    • Y10T137/7839—Dividing and recombining in a single flow path
    • Y10T137/784—Integral resilient member forms plural valves
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7838—Plural
    • Y10T137/7843—Integral resilient member forms plural valves
    • 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
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7898—Pivoted valves

Definitions

  • the present invention relates to valves of the wing type and adapted more particularly' for use as check valvesto control the flow of fluids.
  • the invention is of ⁇ light weight and of simple construction and well ⁇ adapted for serving as a check valve in conduit-s carrying Vair, as for instance, in conduits forming a part of antigas respirators.
  • the invention is of more rugged construction and can beused as part of pumping apparatus and the like wher@J the fluid either liquid or gaseous may be under a considerable pressure.
  • Figure 1 is a sectional elevation showing the valve wings in their spread position closing the conduit;
  • Fig. 2 is a similar view with the valve wings in folded position;
  • Fig. 3 is a longitudinal elevation at right angles to the plane of Fig. 2;
  • Fig. 4c is a cross-section on the line 4 4: of Fig. l;
  • Fig. 5 is a view showing the component parts of the valve separated from one another;
  • Fig. 6 is a sectional elevation of a more rugged modification;
  • Fig. 7 is a tnansverse section on the line 7-7 of Fig. 6;
  • Fig. 8 is a sectional elevation of a further modification;
  • Fig. 9 shows the invention as applied to a pump;
  • Fig. 10 is a transverse section on the line 10-10 of Fig.V 9.
  • 1 is a conduit which may be of cylindrical shape and of metal.
  • a reinforce-ment 2 in the form of a metal ring.
  • a member 3 Positioned above the ring-is a member 3 which may be in the form of a flat plate as illustrated in Fig. 5,- wings are mounted to swing from the lower portion of this plate.
  • the two wings 4 and 5 are formed yfrom a single sheet of soft rubber and are bent around the lower edge of plate 3 where ⁇ they are securely fastened by suitable binding means as by a metal channel 6, the said plate 3 and the channel 6 thus forming the support-for the wings.
  • each wing comprises a serv' body portion 7 which' may be of bristol board o'rthe likeand serves to give rigidity tothe structure'.
  • each wing has a stifi' body portion with a sealing edge of rubber, and the wing can swing toward or from the support 3 to permit orto check the flow of airoi' other fluid through conduit 1.
  • Channel 6 may if desired be soldered to ring 2, or if the chan- Vnel or the plate ,3 fits snugly enough within conduit 1, the ring ⁇ 2 may be omitted entirely.
  • Vthis valve is used in conjunction with gas masks, I omit ring 2 and I rely on the snug of the other parts to hold them in place within the conduit 1. With this arrangement it is-possible for Ithe user to reach into the conduit andextract the valve in an instant if the need for such action should arise.
  • the reinforcement 8 for conduit 9 is held in place by screws 10, and the supporting plate 11 has a hinged connection at pivot pins 12 and 13 with thc stiff body portions 14C and 15 of the wings.
  • These body portions may be of metal and preferably at their edges are recessed to receive a rubber packing strip or edge 16- to more tightly seal the joint when the valve is closed.
  • Strips 17 of rubber or leather may be placedovei the hinges to prevent leakage therethrough and the upper end of support 11 may be enlarged to form stops 18 and 19 against which the wings abut when in folded position. These stops hold the wings apart and thus keep them in the path of the fluidwhich, on the commencement of a return flow, swings the wings forcibly into their spread position as shown in Fig. 6.
  • the conduit 2O is equipped with a sleeve 21, with a flanged lower edge 22 and threaded upper edge to receive a ring nut 23.
  • a rubber packing 24- which under compression of the ring nut forms a tight joint between the sleeve and the conduit and positively anchors the sleeve in position within the conduit.
  • conduit 25 is in the form of a pump having an inlet 26 and an outlet 27 and having a piston 28 With suitable packing rings.
  • the pistonn hasttxvo ⁇ segmental openings therethrough separated bentllzeelln ethenelnbetlilnente- Y i lclaim l! ffheteernbinaten, with.
  • Gopiresxoftlls patent may be obtained Yfhr ⁇ live cents each, hyhadqr'essing the'CommissionerLofPatents,

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)

Description

VALVE.
APPLICATION FILED rime. 191s.
Patented June 10, 1919.
2 SHEETS-SHEET I WM s Kw4 ATTORNEY 1o.. w/Ismucruu. n. c.
H. ROMANOFF.
VALVE.
APPLICATION FILED FEB. 9, 1918.
Patented June 10, 1919.
2 SHEETS-[SHEET 2.
llmmmllx.
sin rains a FICE.
HIPPOLYTE ROMANOFF, or NEW YORK, N. Y.
VALVE.
i Specification of-Iietters Patent. Patented Juin@ 10, 1919,
p Application ined February 9, 191s. serial Noaiase?. Y
pertains to make and use the same.
- The present invention relates to valves of the wing type and adapted more particularly' for use as check valvesto control the flow of fluids. i
In one embodiment the invention is of `light weight and of simple construction and well `adapted for serving as a check valve in conduit-s carrying Vair, as for instance, in conduits forming a part of antigas respirators.
In another embodiment the invention is of more rugged construction and can beused as part of pumping apparatus and the like wher@J the fluid either liquid or gaseous may be under a considerable pressure.
Other objects and advantages of the inven-tion will be made clear by the following detailed description which is to be taken, in conjunction with the accompanyingv drawings wherein Figure 1 is a sectional elevation showing the valve wings in their spread position closing the conduit; Fig. 2 is a similar view with the valve wings in folded position; Fig. 3 is a longitudinal elevation at right angles to the plane of Fig. 2; Fig. 4c is a cross-section on the line 4 4: of Fig. l; Fig. 5 is a view showing the component parts of the valve separated from one another; Fig. 6 is a sectional elevation of a more rugged modification; Fig. 7 is a tnansverse section on the line 7-7 of Fig. 6; Fig. 8 is a sectional elevation of a further modification; Fig. 9 shows the invention as applied to a pump; and Fig. 10 is a transverse section on the line 10-10 of Fig.V 9.
In the embodiment illustrated in Figs. 1 to 5 inclusive, 1 is a conduit which may be of cylindrical shape and of metal. Mounted within this with a tight fit, or soldered thereto if desired, is a reinforce-ment 2 in the form of a metal ring. Positioned above the ring-is a member 3 which may be in the form of a flat plate as illustrated in Fig. 5,- wings are mounted to swing from the lower portion of this plate. In the embodiment illustrated the two wings 4 and 5 are formed yfrom a single sheet of soft rubber and are bent around the lower edge of plate 3 where `they are securely fastened by suitable binding means as by a metal channel 6, the said plate 3 and the channel 6 thus forming the support-for the wings. Eachof these wings comprises a stift' body portion 7 which' may be of bristol board o'rthe likeand serves to give rigidity tothe structure'. As thus constituted, each wing has a stifi' body portion with a sealing edge of rubber, and the wing can swing toward or from the support 3 to permit orto check the flow of airoi' other fluid through conduit 1. Channel 6 may if desired be soldered to ring 2, or if the chan- Vnel or the plate ,3 fits snugly enough within conduit 1, the ring`2 may be omitted entirely. Under some circumstances as when Vthis valve is used in conjunction with gas masks, I omit ring 2 and I rely on the snug of the other parts to hold them in place within the conduit 1. With this arrangement it is-possible for Ithe user to reach into the conduit andextract the valve in an instant if the need for such action should arise.
In the embodiment illustrated in Fig. A6 the reinforcement 8 for conduit 9 is held in place by screws 10, and the supporting plate 11 has a hinged connection at pivot pins 12 and 13 with thc stiff body portions 14C and 15 of the wings. These body portions may be of metal and preferably at their edges are recessed to receive a rubber packing strip or edge 16- to more tightly seal the joint when the valve is closed. Strips 17 of rubber or leather may be placedovei the hinges to prevent leakage therethrough and the upper end of support 11 may be enlarged to form stops 18 and 19 against which the wings abut when in folded position. These stops hold the wings apart and thus keep them in the path of the fluidwhich, on the commencement of a return flow, swings the wings forcibly into their spread position as shown in Fig. 6.
VIn the embodiment illustrated in Fig. 8 the conduit 2O is equipped with a sleeve 21, with a flanged lower edge 22 and threaded upper edge to receive a ring nut 23. Between the sleeve and the conduit is a rubber packing 24- which under compression of the ring nut forms a tight joint between the sleeve and the conduit and positively anchors the sleeve in position within the conduit. The details of the valve wings and of their support are substantially the same as that above described in connection with Fig. 6.
In Figs. 9 and l0 the conduit 25 is in the form of a pump having an inlet 26 and an outlet 27 and having a piston 28 With suitable packing rings. 'The pistonnhasttxvo` segmental openings therethrough separated bentllzeelln ethenelnbetlilnente- Y i lclaim l! ffheteernbinaten, with. e .Verteelly nrraneresl hellen', Cylindrical element .fer the hesage .of .fluid therethrough; ,efla dialnet- ;rcjal .platelke nnernber {depeeed .rerteally Within :Seid element; .and telve @tenter-fte'- zlne nfperef,eetnnellptleel .winne .leeateflet enpeeteyeitlee efeaid lnernber and emeneetu ed ,with .the ealne .alenekthelr .heeees .enlel .Winge harina lene'th .ereeter .than .the niadine' of .Said eyhn'rreal element, lwhereby .they are ,nennelly nnenteneel in eppeeitelynelined, ninrartllypreieetl'ne ilestisnn with their 'enrred letilees reetfnnr directly eenlnet the .inner Snreee .ef .Seid element threnghent thelrentre entent- .'Senti-,elliptical wings leen-ted et 1 ei-desert {ea-id X 2. The combination, with a vertically-:ar-
ranged hollow, cylindrical'element for the passage of Huid therethrough; of a diametrieal, pl a;t e+like member disposed vertically within said element; and a valve comprisling a pair of semi-elliptical Wings located at opposite sides of said member and connected withfthersame along their basesysaid wings vhaving alength greater than the radius of said Vcylindrical element, whereby they are normally maintained in oppositely-inolined, .spread position, With their ourvedfedges vvreet-inerlitreetly e-.againettheinner enrfaee of .said element .thrnehent their; .entire tentrent, eteh .Wine henne la :etllf ,hetly x11er-tien .and n.rnbberedge- The ye@Urbinatien, with Atendait., of diametri-Cal plate .Within Said eenelnit an elliptical .elreet Lat ,rubber ie'aeengnerees .the
Vlo'wer edge of said plate*` anddiametrically 3einenaetl` thereby, .Se .es .te gferrn a pair el? @site Y .la-te; .eaeh Wing Joel..nk fierevlded With sti emng means; ancha ehaniiel ein .which thesaid `lower edge k1of said .Plate andtheheees ef eaellwingeinre htted .tese- .enre the. latter .te ;..tl.1e fermer; said Wings het/'ine' .nv .length greater then the .radine 'Lef ,Said eentlnt, .whereby are ,nerinnlly maintained in"oppOsitely-inclineduupxvardlyresting ,.dreetly eeainetfth@ inner .enreee el [Send `4eendnrt threnghent .their entlre entrent: In teetnn@ny whe-reef'il-atinfrny signature.
glare-.enten entretient.'
Gopiresxoftlls patent may be obtained Yfhr `live cents each, hyhadqr'essing the'CommissionerLofPatents,
Washington, D'. i0.
US21639718 1918-02-09 1918-02-09 Valve. Expired - Lifetime US1306391A (en)

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Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559336A (en) * 1946-12-09 1951-07-03 Pelton Water Wheel Co Draft tube valve
US2711188A (en) * 1951-05-10 1955-06-21 Chapman Valve Mfg Co Check valve
US2800920A (en) * 1952-11-20 1957-07-30 Techno Corp Check valve
US2877792A (en) * 1956-10-12 1959-03-17 Frank W Tybus Surge or back flow valve
US2898080A (en) * 1954-07-28 1959-08-04 Techno Corp Check valve with operator therefor
US2954048A (en) * 1959-02-05 1960-09-27 Frank J Rychlik Pump and valve therefor
US3066695A (en) * 1956-06-04 1962-12-04 Stewart Warner Corp Check valve
US3128785A (en) * 1961-03-15 1964-04-14 Walworth Co Check valve for relatively large size pipes
US3354903A (en) * 1963-09-11 1967-11-28 Scott Aviation Corp Disc valve
USRE31040E (en) * 1975-04-24 1982-09-28 St. Jude Medical, Inc. Heart valve prosthesis
US4452323A (en) * 1982-01-11 1984-06-05 Reed Rock Bit Company Valve assembly for drill bit lubrication system
US4915128A (en) * 1988-02-26 1990-04-10 Massimo Masserini Automatic chambered flap valve for controlling gas passage, particularly for feeding two-stroke internal combustion engines
US5518026A (en) * 1994-09-30 1996-05-21 G. T. Products, Inc. Filler neck butterfly check valve
US5607469A (en) * 1993-10-28 1997-03-04 Inocor Gmbh Bi-leaflet prosthetic heart valve
US5980568A (en) * 1996-02-10 1999-11-09 Affeld; Klaus Mechanical heart valve
WO2000073686A1 (en) * 1999-05-28 2000-12-07 Ligon Brothers Manufacturing Company One way anti-backflow valve
US6319281B1 (en) 1999-03-22 2001-11-20 Kumar R. Patel Artificial venous valve and sizing catheter
US6837265B2 (en) 1999-05-28 2005-01-04 Ligon Brothers Manufacturing Co. One way anti-back flow valve
US20060219300A1 (en) * 2005-03-29 2006-10-05 Tassinari Steven M Reed valve assembly
US20090306768A1 (en) * 2006-07-28 2009-12-10 Cardiaq Valve Technologies, Inc. Percutaneous valve prosthesis and system and method for implanting same
US20090320495A1 (en) * 2007-04-27 2009-12-31 James Elder Fast acting aircraft engine bleed air check valve
US20150041009A1 (en) * 2012-03-30 2015-02-12 Ge Healthcare Bio-Sciences Ab Device for delivery of sample fluid
US20150247420A1 (en) * 2014-02-28 2015-09-03 Pratt & Whitney Canada Corp. Flapper valve assembly and method of flowing air therethrough
US20160040794A1 (en) * 2014-07-31 2016-02-11 HS Wroclaw Sp. z o. o. Check valves
USD755384S1 (en) 2014-03-05 2016-05-03 Edwards Lifesciences Cardiaq Llc Stent
US9681951B2 (en) 2013-03-14 2017-06-20 Edwards Lifesciences Cardiaq Llc Prosthesis with outer skirt and anchors
US9724083B2 (en) 2013-07-26 2017-08-08 Edwards Lifesciences Cardiaq Llc Systems and methods for sealing openings in an anatomical wall
US9730791B2 (en) 2013-03-14 2017-08-15 Edwards Lifesciences Cardiaq Llc Prosthesis for atraumatically grasping intralumenal tissue and methods of delivery

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2559336A (en) * 1946-12-09 1951-07-03 Pelton Water Wheel Co Draft tube valve
US2711188A (en) * 1951-05-10 1955-06-21 Chapman Valve Mfg Co Check valve
US2800920A (en) * 1952-11-20 1957-07-30 Techno Corp Check valve
US2898080A (en) * 1954-07-28 1959-08-04 Techno Corp Check valve with operator therefor
US3066695A (en) * 1956-06-04 1962-12-04 Stewart Warner Corp Check valve
US2877792A (en) * 1956-10-12 1959-03-17 Frank W Tybus Surge or back flow valve
US2954048A (en) * 1959-02-05 1960-09-27 Frank J Rychlik Pump and valve therefor
US3128785A (en) * 1961-03-15 1964-04-14 Walworth Co Check valve for relatively large size pipes
US3354903A (en) * 1963-09-11 1967-11-28 Scott Aviation Corp Disc valve
USRE31040E (en) * 1975-04-24 1982-09-28 St. Jude Medical, Inc. Heart valve prosthesis
US4452323A (en) * 1982-01-11 1984-06-05 Reed Rock Bit Company Valve assembly for drill bit lubrication system
US4915128A (en) * 1988-02-26 1990-04-10 Massimo Masserini Automatic chambered flap valve for controlling gas passage, particularly for feeding two-stroke internal combustion engines
US5607469A (en) * 1993-10-28 1997-03-04 Inocor Gmbh Bi-leaflet prosthetic heart valve
US5518026A (en) * 1994-09-30 1996-05-21 G. T. Products, Inc. Filler neck butterfly check valve
US5980568A (en) * 1996-02-10 1999-11-09 Affeld; Klaus Mechanical heart valve
US6319281B1 (en) 1999-03-22 2001-11-20 Kumar R. Patel Artificial venous valve and sizing catheter
WO2000073686A1 (en) * 1999-05-28 2000-12-07 Ligon Brothers Manufacturing Company One way anti-backflow valve
US6357473B1 (en) 1999-05-28 2002-03-19 Ligon Brother Manufacturing Company One way anti-backflow valve
US6837265B2 (en) 1999-05-28 2005-01-04 Ligon Brothers Manufacturing Co. One way anti-back flow valve
US20060219300A1 (en) * 2005-03-29 2006-10-05 Tassinari Steven M Reed valve assembly
US7614422B2 (en) * 2005-03-29 2009-11-10 Moto Tassinari Reed valve assembly
US20090306768A1 (en) * 2006-07-28 2009-12-10 Cardiaq Valve Technologies, Inc. Percutaneous valve prosthesis and system and method for implanting same
EP1988315B1 (en) * 2007-04-27 2013-08-07 Hamilton Sundstrand Corporation Fast acting aircraft engine bleed air check valve
US8015825B2 (en) * 2007-04-27 2011-09-13 Hamilton Sundstrand Corporation Fast acting aircraft engine bleed air check valve
US20090320495A1 (en) * 2007-04-27 2009-12-31 James Elder Fast acting aircraft engine bleed air check valve
US20150041009A1 (en) * 2012-03-30 2015-02-12 Ge Healthcare Bio-Sciences Ab Device for delivery of sample fluid
US10094481B2 (en) * 2012-03-30 2018-10-09 Ge Healthcare Bio-Sciences Ab Device for delivery of sample fluid
US9681951B2 (en) 2013-03-14 2017-06-20 Edwards Lifesciences Cardiaq Llc Prosthesis with outer skirt and anchors
US9730791B2 (en) 2013-03-14 2017-08-15 Edwards Lifesciences Cardiaq Llc Prosthesis for atraumatically grasping intralumenal tissue and methods of delivery
US9724083B2 (en) 2013-07-26 2017-08-08 Edwards Lifesciences Cardiaq Llc Systems and methods for sealing openings in an anatomical wall
US20150247420A1 (en) * 2014-02-28 2015-09-03 Pratt & Whitney Canada Corp. Flapper valve assembly and method of flowing air therethrough
US9447894B2 (en) * 2014-02-28 2016-09-20 Pratt & Whitney Canada Corp. Flapper valve assembly and method of flowing air therethrough
USD755384S1 (en) 2014-03-05 2016-05-03 Edwards Lifesciences Cardiaq Llc Stent
US20160040794A1 (en) * 2014-07-31 2016-02-11 HS Wroclaw Sp. z o. o. Check valves
US9890864B2 (en) * 2014-07-31 2018-02-13 Hamilton Sundstrand Corporation Check valves

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