US2066473A - Conduit for flexible shafts - Google Patents

Conduit for flexible shafts Download PDF

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Publication number
US2066473A
US2066473A US7868036A US2066473A US 2066473 A US2066473 A US 2066473A US 7868036 A US7868036 A US 7868036A US 2066473 A US2066473 A US 2066473A
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Prior art keywords
lacing
wire
sheathing
fixtures
flexible
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Expired - Lifetime
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Jorgensen Enoch Berg
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Viber Company Ltd
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C1/00Flexible shafts; Mechanical means for transmitting movement in a flexible sheathing
    • F16C1/26Construction of guiding-sheathings or guiding-tubes
    • F16C1/262End fittings; Attachment thereof to the sheathing or tube

Description

W. E. B. JORGIENSEN J A' CONDUIT FOR FLEXIBLE SHAFTS Filed May 8, 1936 [Wow BERG JORGENSEN INVENTOR.

ATTORNEY.

-Patnted Jan. 5, 1937 PATENT OFFICE CONDUITFOR FLEXIBLE SHAFTS- Enoch Berg Jorge'nscn, Los Angeles, Calif., assignor to Vlber Company, Limited, a corporation of Nevada Application May a, 1936, set-m No. 78,686

14 Claims.

This invention relates to a flexible conduit or casing adapted to enclose a flexible power-transmitting shaft," and its object is to provide a casing, including terminal fixtures, which will support a heavy suspended weight, which will have suflicient flexibility and stiffness to conform to the bending of the shaft under ordinary use, which resists elongation, and for other objects which will be apparent from the detailed descriptlon.

My invention may be more clearly understood by reference to the accompanying drawing in which Fig. 1 shows a conduit with end fixtures,

partly in elevation, with portions in section,

showing the construction of my conduit; Fig. 2 shows a cross-section of the conduit taken on the line 2--2--; Fig. 3 shows in elevation a terminal fixture with separable flange.

The conduit or casing has an inner element I i comprising a spirally wound wire which serves to enclose the flexible shaft and act as a bearing therefor. The wire is preferably round in crosssectlon, although it may be of other shape. The terminal fixtures I4 and i5 are attached to the wire spiral by insertion of the ends of the coiled wire in the inner cylindrical openings of the fixtures and by putting the out-turned ends 82 and 83 of the wire through holes It and H in the fixture walls. The wire may of course be otherwise attached to the fixtures.

Overlying this spirally wound wire ii is a flexible, inextensible, non-collapsible tube ill of spirally wound overlapping and interlocking metallic strip commonly known as flexible steel tubing or interlocking armoured tubing.

M and I5 within the recesses 20 and 2|, and

holds the fixtures a fixed distance apart as measured along the tubing. Upon this flexible made up of braided or woven fine wires. This lacing, when drawn down tightly around the flexible steel tubing, which forms a noncollapsible circumficial base, and when attached preferably in tension to the terminal fixtures l4 and I5, permits flexibility of the whole assembly but resists or eliminates elongation, By keeping the lacing in tension between the terminal fixtures,

the individual wire strands of the lacing are kept tight against the non deformable metallic sheathing and the lacing cannot be elongated, be cause when it elongates, its diameter must decrease, andthe rigid metallic sheathing prevents this decrease in diameter. The wire lacing is attached to the terminal fixtures l4 and I! by en- This armoured tubing is seated in the terminal fixtures 'gagement in its meshes with teeth 22 which are 'cut or formed on the exterior portions of the fixtures. A tie wire 23 around the lacing behind or between the teeth strengthens the attachment of the lacing to the fixture. In ordinary use, there is a tendency, when the conduit, made up with wire'lacing, is compressed or shortened in length, either as a whole or in portions, for the fine wires of the lacing to "buckle", and by repetition become broken, and thereby weaken the tensile strength of the lacing, with ultimate lengthening and breakdown of the conduit. In my construction, I avoid this by tightly winding in overlapping spiral formation. a fabric strip N, preferably of rubberized'fabric, attaching it by tie wires or other means to the terminal fixtures. It is preferable to coat the lacing, and impregnate it, with a rubber-like cement before application of the fabric strip, in order-to better hold the individual wires of the lacing in place. The wire lacing may, of course, also be separately coated wlth'a rubber-like coating before assembly. By spirally winding this fabric strip under tension from one terminal fixture to the other, the wire lacing is drawn down tightly around the metallic sheathing, and any accumulated slack" is removed'from the end before attaching to the teethof the terminal fixture. The driver terminal fixture is made of such small diameter in its main portion that the 30 lacing may be slipped over it, and after the wire lacing is properly tensioned and attached, the separable flange or collar 28 may be put in place and permanently or removably attached to the fixture. 3

To further stiffen and add strength to the composite conduit, additional alternate layers ofwire lacing,' rubber-like cement, and spirally wound fabric may be added in a similar manner A final outer layer of rubber 26 is vulcanized over the conduit surface and under the collars or flanges 2'! and 2B of the terminal fixtures, to seal the whole against moisture, and to resist abrasion.

I claim:

1. In a conduit, the combination of a central coiled wire, a non-collapsible interlocking flexible metallic sheathing surrounding said coiled wire, tubular wire lacing overlying said sheath- ,ing, spirally wound fabric. overlyingsaid lacing tubular wire lacing overlying said sheathing, spirally wound rubberized fabric overlying said lacing and adapted to hold said lacing against said sheathing, and a flexible moisture-proof covering.

3. In a conduit, the combination of a central coiled wire, a non-collapsible interlocking flexible metallic sheathing surrounding said coiled wire, tubular wire lacing overlying said sheathing, a rubber-like cement between and covering the individual wires of the lacing, spirally wound fabric overlying said lacing and adapted to hold it against said sheathing, and a flexible moistureproof covering.

4. In a conduit, the combination of a central coiled wire, a non-collapsible interlocking flexible metallic sheathing surrounding said coiled wire, tubular rubber-coated wire lacing overlying said sheathing, spirally wound fabric overlying said lacing and adapted to hold it against said sheathing, and a flexible moisture-proof covering.

5. In a conduit, the combination of a central coiled wire, a non-collapsible interlocking flexible metallic sheathing surrounding said coiled wire, tubular wire lacing overlying said sheathing, a rubber-like cement between and covering the individual. wires of the lacing, and spirally wound rubberized fabric overlying said lacing and cement, and adapted to hold said lacing against said sheathing.

6. In a conduit for encasing a flexible power transmitting shaft, '8. driver terminal fixture, a driven terminal fixture, acentral coiled wire attached to said driver fixture and to said driven fixture, a. non-collapsible interlocking flexible metallic sheathing extending between said fixtures and overlying said coiled wire, tubular wire lacing closely fitting said sheathing and attached to the two terminal fixtures, and a closely fitting fabric strip spirally wound over said lacing and attached to the two terminal fixtures.

7. In a conduit for encasing a flexible power transmitting shaft, a driver terminal fixture, a driven terminal fixture, a central coiled wire attached to said driver fixture and to said driven fixture, a non-collapsible interlocking flexible metallic sheathing extending between said fixtures and overlying said coiled wire, tubular wire lacing closely fitting said sheathing and attached to the two terminal fixtures, rubber-like cement covering and impregnating said lacing, and a closely fitting fabric strip spirally wound over said lacing and attached to the two terminal fixtures.

8. In a conduit for encasing a flexible power transmitting shaft, 9. driver terminal fixture, a driven terminal fixture, a central coiled wire attached to said driver fixture and to said driven fixture, a non-collapsible interlocking flexible metallic sheathing extending between said fixtures and overlying said coiled wire, tubular wire lacing closely fitting said sheathing and attached to the two'terminal fixtures, rubber-like cement covering and impregnating said lacing, and a closely fitting rubberized fabric strip spirally wound over said lacing and attached to the two terminal fixtures.

9. In a conduit, a non-collapsible interlocking flexible metallic sheathing, a tubular wire lacing tightly stretched over said sheathing, a rubberlike cementing material in the meshes of and coating said lacing, and a fabric wrapping over said lacing tightly wound and adapted to prevent buckling and breaking of individual wire strands in said lacing.

10. In a conduit made up of separable concentric flexible tubes and having terminal fixtures at its ends, an interlocking non-collapsible metallic sheathing extending between and holding apart said fixtures, and a tubular wire lacing in tension overlying said sheathing between said terminals.

11. In a conduit made up of separable concentric flexible tubes and having terminal fixtures at its ends, an interlocking non-collapsible metallic sheathing extending between and holding apart said fixtures, a tubular wire lacing in tension overlying said sheathing between said terminals, and flexible fabric wrapping holding said wire lacing closely in contact with said sheathing.

12. In a conduit made up of separable concentric flexible tubes and having terminal fixtures at its ends, an interlocking non-collapsible metallic sheathing extending between and holding apart said fixtures, a tubular wire lacing in tension overlying said sheathing between said terminals, and a rubber-like impregnating coating over said lacing.

13. In a conduit made up of separable concentric flexible tubes and having terminal fixtures atits ends, an interlocking non-collapsible metallic sheathing extending between and holding apart said fixtures, a tubular wire lacing in tension overlying said sheathing between said terminals, flexible fabric wrapping holding said wire lacing closely in contact with said sheathing, and a rubber-like impregnating coating between said lacing and said fabric wrapping.

14. In a conduit made up of separable concentric flexible tubular structures including tubular wire lacing and non-collapsible interlocking flexible metallic sheathing, terminal fixtures having peripheral teeth adapted to engage said lacing and hold it in tension between the fixtures.

ENOCH BERG JORGENSEN.

US2066473A 1936-05-08 1936-05-08 Conduit for flexible shafts Expired - Lifetime US2066473A (en)

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Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522169A (en) * 1944-11-20 1950-09-12 Bendix Aviat Corp Ignition harness
US2642898A (en) * 1948-09-30 1953-06-23 Roeblings John A Sons Co Control casing and manufacture thereof
US2671325A (en) * 1950-02-25 1954-03-09 Master Vibrator Co Casing for flexible shafts
DE932754C (en) * 1940-10-27 1955-09-08 Vorbrueggen Vofa Werk Tensile and compression-resistant enclosure for Bowden and similar trains
US3857590A (en) * 1973-01-17 1974-12-31 Johns Manville Air duct
US4508370A (en) * 1981-11-02 1985-04-02 Schroeder Clifford A Rigid duct with bendable elbow
US5165733A (en) * 1988-02-19 1992-11-24 Sampson Richard K Apparatus for connecting an elastic hose to a system
US5487571A (en) * 1994-08-29 1996-01-30 Robertson; Duane D. Pipe fitting
US5669420A (en) * 1990-07-27 1997-09-23 Coflexip Casing and flexible tubular conduit comprising such a casing and process for producing it
US6016842A (en) * 1996-01-17 2000-01-25 Titeflex Corporation End fittings for metal hose assemblies and method of attachment
US6193282B1 (en) * 1999-09-24 2001-02-27 Dayco Products, Inc. Hose coupling and method of manufacture
US20050082828A1 (en) * 2003-09-12 2005-04-21 Wicks Jeffrey C. Releasable connection assembly for joining tubing sections
US20050199308A1 (en) * 2004-03-11 2005-09-15 Swails Michael R. Push-on hose construction
US20060157974A1 (en) * 2003-03-21 2006-07-20 Hans-Bernd Luft Composite low cycle fatigue coiled tubing connector
US20060157134A1 (en) * 2003-05-30 2006-07-20 Kokusan Rasenkan Co,. Ltd. Flexible pipe and method for producing the same
US20070078012A1 (en) * 2005-10-03 2007-04-05 Bettcher Industries, Inc. Flexible drive shaft casing for power operated rotary knife
US20070119589A1 (en) * 2005-11-29 2007-05-31 David Hall Complaint Covering of a Downhole Component
US20080007051A1 (en) * 2005-06-10 2008-01-10 Jensen Jeffrey P Female connector for releasable coupling with a male connector defining a fluid conduit
US20080230277A1 (en) * 2007-03-21 2008-09-25 Hall David R Pocket for a Downhole Tool String Component
US20090025982A1 (en) * 2007-07-26 2009-01-29 Hall David R Stabilizer Assembly
US20100001516A1 (en) * 2008-07-03 2010-01-07 Value Plastics, Inc. Latch assembly for joining two conduits
US20100018699A1 (en) * 2007-03-21 2010-01-28 Hall David R Low Stress Threadform with a Non-conic Section Curve
US7669671B2 (en) 2007-03-21 2010-03-02 Hall David R Segmented sleeve on a downhole tool string component
US20100051256A1 (en) * 2007-03-21 2010-03-04 Hall David R Downhole Tool String Component that is Protected from Drilling Stresses
US7806139B2 (en) 2006-01-20 2010-10-05 Value Plastics, Inc. Fluid conduit coupling assembly having male and female couplers with integral valves
US20100319796A1 (en) * 2009-06-23 2010-12-23 Whitaker Carl T Multi-Port Valve
USD629894S1 (en) 2008-07-03 2010-12-28 Value Plastics, Inc. Male body of connector for fluid tubing
USD630320S1 (en) 2008-07-03 2011-01-04 Value Plastics, Inc. Connector for fluid tubing
USD634840S1 (en) 2008-07-03 2011-03-22 Value Plastics, Inc. Female body of connector for fluid tubing
US20110204621A1 (en) * 2009-12-09 2011-08-25 Value Plastics, Inc. Fluid connector latches with profile lead-ins
USD645547S1 (en) 2007-11-19 2011-09-20 Value Plastics, Inc. Male quick connect fitting
USD649240S1 (en) 2009-12-09 2011-11-22 Value Plastics, Inc. Male dual lumen bayonet connector
US20110285126A1 (en) * 2009-12-18 2011-11-24 Rowshan Jahan Barbed connection for use with irrigation tubing
USD650478S1 (en) 2009-12-23 2011-12-13 Value Plastics, Inc. Female dual lumen connector
US8091627B2 (en) 2009-11-23 2012-01-10 Hall David R Stress relief in a pocket of a downhole tool string component
USD652511S1 (en) 2011-02-11 2012-01-17 Value Plastics, Inc. Female body of connector for fluid tubing
USD652510S1 (en) 2011-02-11 2012-01-17 Value Plastics, Inc. Connector for fluid tubing
USD655393S1 (en) 2009-06-23 2012-03-06 Value Plastics, Inc. Multi-port valve
USD663022S1 (en) 2011-02-11 2012-07-03 Nordson Corporation Male body of connector for fluid tubing
USD698440S1 (en) 2011-07-29 2014-01-28 Nordson Corporation Connector for fluid tubing
USD699840S1 (en) 2011-07-29 2014-02-18 Nordson Corporation Male body of connector for fluid tubing
USD699841S1 (en) 2011-07-29 2014-02-18 Nordson Corporation Female body of connector for fluid tubing
USD709612S1 (en) 2011-12-23 2014-07-22 Nordson Corporation Female dual lumen connector
US9388929B2 (en) 2009-12-09 2016-07-12 Nordson Corporation Male bayonet connector
US9464741B2 (en) 2009-12-09 2016-10-11 Nordson Corporation Button latch with integrally molded cantilever springs
USD785790S1 (en) 2009-12-09 2017-05-02 General Electric Company Male dual lumen bayonet connector

Cited By (71)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE932754C (en) * 1940-10-27 1955-09-08 Vorbrueggen Vofa Werk Tensile and compression-resistant enclosure for Bowden and similar trains
US2522169A (en) * 1944-11-20 1950-09-12 Bendix Aviat Corp Ignition harness
US2642898A (en) * 1948-09-30 1953-06-23 Roeblings John A Sons Co Control casing and manufacture thereof
US2671325A (en) * 1950-02-25 1954-03-09 Master Vibrator Co Casing for flexible shafts
US3857590A (en) * 1973-01-17 1974-12-31 Johns Manville Air duct
US4508370A (en) * 1981-11-02 1985-04-02 Schroeder Clifford A Rigid duct with bendable elbow
US5165733A (en) * 1988-02-19 1992-11-24 Sampson Richard K Apparatus for connecting an elastic hose to a system
US5669420A (en) * 1990-07-27 1997-09-23 Coflexip Casing and flexible tubular conduit comprising such a casing and process for producing it
US5487571A (en) * 1994-08-29 1996-01-30 Robertson; Duane D. Pipe fitting
US6016842A (en) * 1996-01-17 2000-01-25 Titeflex Corporation End fittings for metal hose assemblies and method of attachment
US6193282B1 (en) * 1999-09-24 2001-02-27 Dayco Products, Inc. Hose coupling and method of manufacture
US6604758B1 (en) 1999-09-24 2003-08-12 Dayco Products, Llc Hose coupling and method of manufacture
US7562909B2 (en) 2003-03-21 2009-07-21 Bj Services Company Composite low cycle fatigue coiled tubing connector
US20060157974A1 (en) * 2003-03-21 2006-07-20 Hans-Bernd Luft Composite low cycle fatigue coiled tubing connector
US7219700B2 (en) * 2003-05-30 2007-05-22 Kokusan Rasenkan Co., Ltd. Flexible pipe and method for producing the same
US20060157134A1 (en) * 2003-05-30 2006-07-20 Kokusan Rasenkan Co,. Ltd. Flexible pipe and method for producing the same
US20050082828A1 (en) * 2003-09-12 2005-04-21 Wicks Jeffrey C. Releasable connection assembly for joining tubing sections
US7878553B2 (en) 2003-09-12 2011-02-01 Value Plastics, Inc. Releasable connection assembly for joining tubing sections
US8479775B2 (en) 2004-03-11 2013-07-09 Parker-Hannifin Corporation Push-on hose construction
US20050199308A1 (en) * 2004-03-11 2005-09-15 Swails Michael R. Push-on hose construction
US7770939B2 (en) 2005-06-10 2010-08-10 Value Plastics, Inc. Female connector for releasable coupling with a male connector defining a fluid conduit
US20080007051A1 (en) * 2005-06-10 2008-01-10 Jensen Jeffrey P Female connector for releasable coupling with a male connector defining a fluid conduit
US20100301599A1 (en) * 2005-06-10 2010-12-02 Value Plastics, Inc. Latching Female Fluid Tubing Coupler
US8113546B2 (en) 2005-06-10 2012-02-14 Value Plastics, Inc. Latching female fluid tubing coupler
US7448653B2 (en) 2005-06-10 2008-11-11 Value Plastics, Inc. Female connector for releasable coupling with a male connector defining a fluid conduit
US20080277924A1 (en) * 2005-06-10 2008-11-13 Value Plastics, Inc. Female connector for releasable coupling with a male connector defining a fluid conduit
EP1772638A3 (en) * 2005-10-03 2007-11-21 Bettcher Industries, Inc. Flexible drive shaft casing for power operated rotary knife
EP1772638A2 (en) * 2005-10-03 2007-04-11 Bettcher Industries, Inc. Flexible drive shaft casing for power operated rotary knife
US20070078012A1 (en) * 2005-10-03 2007-04-05 Bettcher Industries, Inc. Flexible drive shaft casing for power operated rotary knife
US7377315B2 (en) 2005-11-29 2008-05-27 Hall David R Complaint covering of a downhole component
US20070119589A1 (en) * 2005-11-29 2007-05-31 David Hall Complaint Covering of a Downhole Component
US20110012340A1 (en) * 2006-01-20 2011-01-20 Value Plastics, Inc. Fluid Conduit Couplers with Depressible Latch Mechanism
US7806139B2 (en) 2006-01-20 2010-10-05 Value Plastics, Inc. Fluid conduit coupling assembly having male and female couplers with integral valves
US8397756B2 (en) 2006-01-20 2013-03-19 Nordson Corporation Fluid conduit couplers with depressible latch mechanism
US7669671B2 (en) 2007-03-21 2010-03-02 Hall David R Segmented sleeve on a downhole tool string component
US20100018699A1 (en) * 2007-03-21 2010-01-28 Hall David R Low Stress Threadform with a Non-conic Section Curve
US8201645B2 (en) 2007-03-21 2012-06-19 Schlumberger Technology Corporation Downhole tool string component that is protected from drilling stresses
US20080230277A1 (en) * 2007-03-21 2008-09-25 Hall David R Pocket for a Downhole Tool String Component
US20100051256A1 (en) * 2007-03-21 2010-03-04 Hall David R Downhole Tool String Component that is Protected from Drilling Stresses
US7497254B2 (en) 2007-03-21 2009-03-03 Hall David R Pocket for a downhole tool string component
US20090025982A1 (en) * 2007-07-26 2009-01-29 Hall David R Stabilizer Assembly
USD654573S1 (en) 2007-11-19 2012-02-21 Value Plastics, Inc. Female quick connect fitting
USD645547S1 (en) 2007-11-19 2011-09-20 Value Plastics, Inc. Male quick connect fitting
USD629894S1 (en) 2008-07-03 2010-12-28 Value Plastics, Inc. Male body of connector for fluid tubing
USD634840S1 (en) 2008-07-03 2011-03-22 Value Plastics, Inc. Female body of connector for fluid tubing
US8448994B2 (en) 2008-07-03 2013-05-28 Nordson Corporation Latch assembly for joining two conduits
US20100001516A1 (en) * 2008-07-03 2010-01-07 Value Plastics, Inc. Latch assembly for joining two conduits
US8235426B2 (en) 2008-07-03 2012-08-07 Nordson Corporation Latch assembly for joining two conduits
US8596688B2 (en) 2008-07-03 2013-12-03 Nordson Corporation Latch assembly for joining two conduits
USD630320S1 (en) 2008-07-03 2011-01-04 Value Plastics, Inc. Connector for fluid tubing
USD655393S1 (en) 2009-06-23 2012-03-06 Value Plastics, Inc. Multi-port valve
US20100319796A1 (en) * 2009-06-23 2010-12-23 Whitaker Carl T Multi-Port Valve
US8091627B2 (en) 2009-11-23 2012-01-10 Hall David R Stress relief in a pocket of a downhole tool string component
US9464741B2 (en) 2009-12-09 2016-10-11 Nordson Corporation Button latch with integrally molded cantilever springs
US9388929B2 (en) 2009-12-09 2016-07-12 Nordson Corporation Male bayonet connector
USD785790S1 (en) 2009-12-09 2017-05-02 General Electric Company Male dual lumen bayonet connector
US9732891B2 (en) 2009-12-09 2017-08-15 General Electric Company Male bayonet connector
US9046205B2 (en) 2009-12-09 2015-06-02 Nordson Corporation Fluid connector latches with profile lead-ins
USD649240S1 (en) 2009-12-09 2011-11-22 Value Plastics, Inc. Male dual lumen bayonet connector
US20110204621A1 (en) * 2009-12-09 2011-08-25 Value Plastics, Inc. Fluid connector latches with profile lead-ins
US20110285126A1 (en) * 2009-12-18 2011-11-24 Rowshan Jahan Barbed connection for use with irrigation tubing
US8950789B2 (en) * 2009-12-18 2015-02-10 Rain Bird Corporation Barbed connection for use with irrigation tubing
USD650478S1 (en) 2009-12-23 2011-12-13 Value Plastics, Inc. Female dual lumen connector
USD652510S1 (en) 2011-02-11 2012-01-17 Value Plastics, Inc. Connector for fluid tubing
USD652511S1 (en) 2011-02-11 2012-01-17 Value Plastics, Inc. Female body of connector for fluid tubing
USD663022S1 (en) 2011-02-11 2012-07-03 Nordson Corporation Male body of connector for fluid tubing
USD712537S1 (en) 2011-07-29 2014-09-02 Nordson Corporation Connector for fluid tubing
USD699840S1 (en) 2011-07-29 2014-02-18 Nordson Corporation Male body of connector for fluid tubing
USD699841S1 (en) 2011-07-29 2014-02-18 Nordson Corporation Female body of connector for fluid tubing
USD698440S1 (en) 2011-07-29 2014-01-28 Nordson Corporation Connector for fluid tubing
USD709612S1 (en) 2011-12-23 2014-07-22 Nordson Corporation Female dual lumen connector

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