US3815887A - Plastic spring - Google Patents

Plastic spring Download PDF

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Publication number
US3815887A
US3815887A US00236621A US23662172A US3815887A US 3815887 A US3815887 A US 3815887A US 00236621 A US00236621 A US 00236621A US 23662172 A US23662172 A US 23662172A US 3815887 A US3815887 A US 3815887A
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US
United States
Prior art keywords
spring
peaks
recited
valley
peak
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
Application number
US00236621A
Other languages
English (en)
Inventor
W Curtis
D Trimble
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hercules LLC
Original Assignee
Hercules LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hercules LLC filed Critical Hercules LLC
Priority to US00236621A priority Critical patent/US3815887A/en
Priority to CA168,257A priority patent/CA967597A/en
Priority to GB3783073A priority patent/GB1428858A/en
Priority to DE7329565U priority patent/DE7329565U/de
Priority to DE19732340917 priority patent/DE2340917A1/de
Priority to CH1188073A priority patent/CH582316A5/xx
Priority to FR7330855A priority patent/FR2241723A1/fr
Priority to BE134796A priority patent/BE803851A/xx
Application granted granted Critical
Publication of US3815887A publication Critical patent/US3815887A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/34—Seat parts with springs in compression, e.g. coiled
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/002—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases with separate resilient support elements, e.g. elastomeric springs arranged in a two-dimensional matrix pattern
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
    • A47C27/06—Spring inlays
    • A47C27/065—Spring inlays of special shape
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/025—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant characterised by having a particular shape
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/42—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing
    • F16F1/422—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing the stressing resulting in flexion of the spring
    • F16F1/424—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing the stressing resulting in flexion of the spring of membrane-type springs
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • F16F9/04—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall
    • F16F9/0409—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum in a chamber with a flexible wall characterised by the wall structure
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2236/00—Mode of stressing of basic spring or damper elements or devices incorporating such elements
    • F16F2236/02—Mode of stressing of basic spring or damper elements or devices incorporating such elements the stressing resulting in flexion of the spring
    • F16F2236/022—Mode of stressing of basic spring or damper elements or devices incorporating such elements the stressing resulting in flexion of the spring of membrane-type springs
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S297/00—Chairs and seats
    • Y10S297/08—Inflatable bellows

Definitions

  • the peaks are arranged in the manner as the valley bottoms thereby providing a telescopic effect of the valley bottoms and a telescopic effect of the peaks when the spring is fully compressed.
  • Yet another object of the invention is to provide a plastic corrugated spring which has a short compressed height.
  • FIG. 1 is a view in section of a corrugated plastic spring
  • FIG. 2 is a view' in section of the corrugated plastic spring of FIG. I fully compressed
  • FIG. 3 is a partial view in section of a modification of the spring of FIG. 1;
  • FIG. 4 is a partialview in section of another modification of FIG. 1;
  • F IG. 5 is a partial view in section of a further modification of the embodiment of FIG. 1;
  • FIG. 6 is a partial view in section of still another modification of FIG. 1;
  • FIG. 7 is a partial view in section of yet another modification of FIG. 1'.
  • FIG. 8 is a partial view in section of a further modification of FIG. 1.
  • a spring is generally referred to by reference numeral 10, and is'supported between'a force transmitting member 11 and a support 13.
  • the spring may either loosely rest on the support 13 or be secured thereto by an adhesive or other known means and the force transmitting member 11 may either loosely rest on the spring or be secured thereto by an adhesive or other known means.
  • the force transmitting member 11' could represent a sofa cushion and the support 13 could represent a sofa frame.
  • the spring comprises a tubular corrugated, thin-walled plastic member which has a plurality of peaks and valleys circumscribed about the longitudinal axis A-A of the spring at varying distances therefrom.
  • Each peak 12 and 14 and each valley l6, 18 comprises a tubular wall, which is planar in cross-section and is generally parallel to the axis A-A.
  • the side walls 20 and 22 of one valley and 24 and 26 of an adjacent valley are generally frustoconical in shape and are at an angle a with the axis of the spring which can vary between 85 and 60.
  • all of the bottoms 16 of the valleys are of the same radius R,, of circumscription about the. longitudinal axis A-A and all of the bottoms 18 are of the same radius r;, of circumscription about the longitudinal axis and which radius is smaller than the radius R,,.
  • All of the peaks 14 are of the same radius R, of circumscription about the longitudinal axis A-A and all of the peaks 12 are of the same radius r of circumscription about the longitudinal axis, which radius is less than the radius R,,.
  • the slant width W of wall 26 is the largest followed by the slant width of walls 24, 22 and 20 in order of magnitude. Obviously, depending upon the characteristics desired, the radii of circumscription of the walls can be varied whereby the slant width W of walls 22 and 24 are equal or the slant width of wall 22 may be greater than or less than the slant width of wall 24.
  • the side walls When the spring is under a load F which has been applied to the force transmitting member 11, the side walls are strained as shown in FIG. 2. Upon release of the load, the stresses of the frusto-conical side walls are released and they return to their original unloaded position thereby expanding the spring-back to its un- 38 percent of the largest peak outer diameter, about 40 percent of the smallest peak outer diameter, about 52 percent of the smallest valley bottom outer diameter, and about 50 percent of the largest valley bottom outer diameter.
  • the thickness of the parison is about 7% j times the average thickness of the spring after it is molded. Since the spring is corrugated, the longitudinal periphery is 180 percent of the original length of the parison.
  • the spring comprises a polymer which is biaxially stretched.
  • the wall thickness of the spring Due to thebiaxially stretching, the wall thickness of the spring'decreases as the diameter of the spring increases.
  • the parison was 184 mils thick and the thickness of the valley bottom wall 18 was 43 mils, the thickness of the valley bottom wall 16 was 40 mils, the thickness of the peak wall 12 was 20 mils and the thickness of the peak wall 14 was 9 mils.
  • This biaxial stretching effects a stronger spring and increases the fatigue life thereof.
  • the primary purpose of alternating the radii of the valley bottoms l6 and 18 and of the peaks 12 and 14 is to provide a short, fully compressed heightfor the spring since the valley bottoms and peaks can telescope within one another as shown in FIG. 2..
  • the fully compressed height would be much greater since the valley bottoms would abut each other.
  • a short, fully compressed spring is a necessity in'furniture and therefore the design is very advantageous.
  • the difference in radii of the bottom walls 16 and 18 should be at least equal to the thickness of the bottom wall and the difference in radii-of the peaks l2 and 14 should be at least equal to the thickness of the peak wall.
  • the ratio of the two different radii of the valley bottoms should not exceed l /2:1 and the ratio of the two different radii of the peaks should not exceed l /z:l.
  • the maximum peak radius should not be more than three times the minimum valley bottom radius.
  • the wall thickness at the valleybottom should not be greater than 18 times the thickness of the' wall thickness at the peak.
  • the wall thickness of the spring may be within the range of from mils to 90 mils: If the wall thickness is less than 5 mils, the springrate is too low for an effective spring-for most applications and buckling of the than the combined axial lengths of the walls of the peaks l2 and 14 whereby ifthe radii of the peaks were equal and-thev radii of the valley bottoms were equal, the valley bottom walls will abut each other while there will be space between some or all of the peaks. In this instance, the principle of this inventionmay be followed by varying only the radii of the valley bottoms as disclosed in FIG.
  • the combined axial lengths of the walls of the peaks l2 and 14 may be larger, than the combined axial lengths of the walls-of valley bottoms 16 and 18 whereby ifthe radii of the peaks were equal and .the radii of the valley bottoms were equal, the peak walls will abut each other .while there will be space between some or all of the valley bottoms.
  • the principle of this invention may be followed by varying only the radii'of the peak walls as disclosed in FIG. 4 to permit telescoping of the peak walls tent is:
  • FIG. 1 The same elements as in FIG. 1 are designated with the same reference numerals only with an a and baffixed thereto for FIGS. 3 and'4, respectively.
  • the spring of any of the previous embodiment can be further modified by changing either the valley bottom wall or the peak wall, or both, to a curved or generally U-shaped wall without appreciably affecting the functional characteristics of the spring.
  • the open ends of the curved peak or valley bottom merge with a respective side wall of the valley.
  • FIGS. 5, 6 and 7, respectively wherein the same elements as in FIG. 1 are designated with the same reference numerals only with a c affixed thereto for the modification of FIG. 5, with a d affixed thereto for the modification of FIG. 6, and with an .e affixed thereto for the modification of FIG. 7.
  • the curved valley bottom walls are designated by reference numerals 200 and 202 inFIG. 5, the curved peaks are designated by reference numerals 300 and 302 in FIG. 6, the curved peaks are designated by reference numerals 304 and 306 and the curved valleys are desig-. v
  • Each pair of side walls 402 and 404 and 406 and 408 which are connected to a common peak have their concave surfaces facing each other.
  • the walls are slanted-in such a manner that a chord line c connecting the larger diametered edge of each wall with its respective inner diametered edge will be at an angle ,8 with the axisof tween and 60.
  • corrugated shell having a plurality of annular peaks and second distance by at least the wall thickness of the spring at the valley bottoms, said'first valley bottoms being dimensionally greater than said second valley bottoms, a plurality of sidewalls for each valley, each said side wall being generallyfrusto-conical in shape with the smaller diametered edge thereof being integral with one edge of a respective valley bottom and the larger diametered edge thereof being integral with one edge of a respective peak, the-side walls integral with a common peak diverging from each other," the thickness of any portion of said spring shell not exceeding about mils.
  • valley bottoms and the peaks are U-shaped in cross section with the open ends thereof merging into a respective one of said side walls.
  • a biaxially stretched spring comprising a hollow, corrugated shell having a plurality of annular peaks and annular valleys separating each of said peaks, a first group of peaks being arranged to be a first distance wall being generally frusto-conical in shape with the smaller diametered edge thereof being integral with one edge of a respective valley bottom and the larger diametered edge thereof being integral with one edge of a respective peak, the side walls integral with a common peak diverging from each other, the thickness of any portion of said spring shell not exceeding about 90 mils.
  • annular peaks and the annular valleys are u-shaped in crosssection with the open ends thereof merging into a respective one of said side walls.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • Springs (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
US00236621A 1972-03-21 1972-03-21 Plastic spring Expired - Lifetime US3815887A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US00236621A US3815887A (en) 1972-03-21 1972-03-21 Plastic spring
CA168,257A CA967597A (en) 1972-03-21 1973-04-09 Plastic spring
GB3783073A GB1428858A (en) 1972-03-21 1973-08-09 Plastics spring
DE19732340917 DE2340917A1 (de) 1972-03-21 1973-08-13 Kunststoffeder fuer sessel oder sofas
DE7329565U DE7329565U (enrdf_load_stackoverflow) 1972-03-21 1973-08-13
CH1188073A CH582316A5 (enrdf_load_stackoverflow) 1972-03-21 1973-08-17
FR7330855A FR2241723A1 (enrdf_load_stackoverflow) 1972-03-21 1973-08-20
BE134796A BE803851A (fr) 1972-03-21 1973-08-21 Ressort en matiere plastique

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US00236621A US3815887A (en) 1972-03-21 1972-03-21 Plastic spring
CA168,257A CA967597A (en) 1972-03-21 1973-04-09 Plastic spring
GB3783073A GB1428858A (en) 1972-03-21 1973-08-09 Plastics spring
DE19732340917 DE2340917A1 (de) 1972-03-21 1973-08-13 Kunststoffeder fuer sessel oder sofas
DE7329565U DE7329565U (enrdf_load_stackoverflow) 1972-03-21 1973-08-13
CH1188073A CH582316A5 (enrdf_load_stackoverflow) 1972-03-21 1973-08-17
FR7330855A FR2241723A1 (enrdf_load_stackoverflow) 1972-03-21 1973-08-20
BE134796A BE803851A (fr) 1972-03-21 1973-08-21 Ressort en matiere plastique

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US3815887A true US3815887A (en) 1974-06-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00236621A Expired - Lifetime US3815887A (en) 1972-03-21 1972-03-21 Plastic spring

Country Status (7)

Country Link
US (1) US3815887A (enrdf_load_stackoverflow)
BE (1) BE803851A (enrdf_load_stackoverflow)
CA (1) CA967597A (enrdf_load_stackoverflow)
CH (1) CH582316A5 (enrdf_load_stackoverflow)
DE (2) DE7329565U (enrdf_load_stackoverflow)
FR (1) FR2241723A1 (enrdf_load_stackoverflow)
GB (1) GB1428858A (enrdf_load_stackoverflow)

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0172340A1 (de) * 1984-08-09 1986-02-26 Hüls Aktiengesellschaft Energie aufnehmende Kunststoff-Formteile
EP0148104A3 (en) * 1983-12-23 1987-05-06 The Goodyear Tire & Rubber Company Method of making an elastic air spring member and said member
US4895352A (en) * 1989-01-09 1990-01-23 Simmons Company Mattress or cushion spring array
US5098124A (en) * 1990-09-06 1992-03-24 Automotive Technologies International Inc. Padding to reduce injuries in automobile accidents
US5799987A (en) * 1995-06-05 1998-09-01 Sampson; Richard K. Fluid fitting coupling system
US6000079A (en) * 1994-07-18 1999-12-14 Dranger; Jan Elements for furniture items, furniture items including such elements and method of manufacturing of such elements
US6032890A (en) * 1996-09-23 2000-03-07 Sonoco Development, Inc. Stacking stable yarn carrier for package dyeing
US6101651A (en) * 1998-04-03 2000-08-15 Wing Hang (3Y) Industries Ltd. Pillow core
US6113082A (en) * 1997-06-27 2000-09-05 Nishikawa Sangyo Co., Ltd. Spring
US6283869B1 (en) * 1996-06-12 2001-09-04 Kwd Kupplungswerk Dresden Gmbh Toothed coupling
US20030208849A1 (en) * 1999-04-20 2003-11-13 Wilkinson John W. Inflatable cushioning device with manifold system
US20050125905A1 (en) * 1999-04-20 2005-06-16 John Wilkinson Inflatable cushioning device with manifold system
US20050273938A1 (en) * 2004-06-09 2005-12-15 The Coleman Company, Inc. Airbed utilizing extruded coils
US20060033252A1 (en) * 2004-08-13 2006-02-16 Elmoselhy Salah A M Sigma Sigma-springs for suspension systems
US20070044243A1 (en) * 2005-08-31 2007-03-01 The Coleman Company, Inc. Double high airbed utilizing coils
US20080028534A1 (en) * 1999-04-20 2008-02-07 M.P.L. Limited Mattress having three separate adjustable pressure relief zones
US7448653B2 (en) 2005-06-10 2008-11-11 Value Plastics, Inc. Female connector for releasable coupling with a male connector defining a fluid conduit
US7806139B2 (en) 2006-01-20 2010-10-05 Value Plastics, Inc. Fluid conduit coupling assembly having male and female couplers with integral valves
CN101871497A (zh) * 2010-07-01 2010-10-27 苏州纽威机床设计研究院有限公司 一种刚性弹簧
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
US7878553B2 (en) 2003-09-12 2011-02-01 Value Plastics, Inc. Releasable connection assembly for joining tubing sections
USD634840S1 (en) 2008-07-03 2011-03-22 Value Plastics, Inc. Female body of connector for fluid tubing
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
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
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
US8235426B2 (en) 2008-07-03 2012-08-07 Nordson Corporation Latch assembly for joining two conduits
US20130234380A1 (en) * 2012-03-06 2013-09-12 Kia Motors Corp. Spring of suspension for vehicle
USD698440S1 (en) 2011-07-29 2014-01-28 Nordson Corporation Connector for fluid tubing
US20140042679A1 (en) * 2012-01-20 2014-02-13 Xilinmen Furniture Co., Ltd. Elasticity-adjustable air pressure spring
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
US9046205B2 (en) 2009-12-09 2015-06-02 Nordson Corporation Fluid connector latches with profile lead-ins
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
FR3041400A1 (fr) * 2015-09-17 2017-03-24 Peugeot Citroen Automobiles Sa Ressort de suspension de vehicule automobile
USD785790S1 (en) 2009-12-09 2017-05-02 General Electric Company Male dual lumen bayonet connector
WO2018084926A1 (en) * 2016-11-04 2018-05-11 Raytheon Company Bi-directional non-linear spring
US10041622B2 (en) 2016-11-04 2018-08-07 Raytheon Company Vibration suspension system
USD838366S1 (en) 2016-10-31 2019-01-15 Nordson Corporation Blood pressure connector
US10711930B2 (en) 2009-12-09 2020-07-14 Nordson Corporation Releasable connection assembly
US11773840B2 (en) * 2020-04-29 2023-10-03 Yonwoo Co., Ltd. Elastic member and pump assembly including the same
US12173768B2 (en) 2020-04-29 2024-12-24 Yonwoo Co., Ltd. Elastic member and pump assembly including the same

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114460A (en) * 1977-02-24 1978-09-19 Roto Manufacturing Co., Inc. Protective boot
US4962916A (en) * 1989-11-17 1990-10-16 Uniroyal Chemical Company, Inc. Compression spring
DE102009029300A1 (de) 2009-09-09 2011-04-07 Leichtbau-Zentrum Sachsen Gmbh Kunststofffeder für ein Kraftfahrzeugfahrwerk
KR101293962B1 (ko) * 2011-11-23 2013-08-08 기아자동차주식회사 자동차 서스펜션용 주름형 플라스틱 복합재 스프링과, 이것의 제조 장치 및 방법
CN109914190A (zh) * 2019-04-01 2019-06-21 江苏亿之博实业有限公司 球场用人造草坪基布及其使用方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443201A (en) * 1940-03-07 1948-06-15 Sluyter Nicolaas Rubber cushioning device
US3201111A (en) * 1963-11-12 1965-08-17 Afton Leonard Multi-purpose, inherently biased, selfinflatable bellows
US3261037A (en) * 1963-06-03 1966-07-19 Union Carbide Corp Molded body support
US3262138A (en) * 1964-03-03 1966-07-26 Union Carbide Corp Double-tapered spring assembly
US3311249A (en) * 1965-08-23 1967-03-28 King Seeley Thermos Co Vacuum ware
US3402924A (en) * 1965-05-03 1968-09-24 Aeon Products London Ltd Springs

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2443201A (en) * 1940-03-07 1948-06-15 Sluyter Nicolaas Rubber cushioning device
US3261037A (en) * 1963-06-03 1966-07-19 Union Carbide Corp Molded body support
US3201111A (en) * 1963-11-12 1965-08-17 Afton Leonard Multi-purpose, inherently biased, selfinflatable bellows
US3262138A (en) * 1964-03-03 1966-07-26 Union Carbide Corp Double-tapered spring assembly
US3402924A (en) * 1965-05-03 1968-09-24 Aeon Products London Ltd Springs
US3311249A (en) * 1965-08-23 1967-03-28 King Seeley Thermos Co Vacuum ware

Cited By (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0148104A3 (en) * 1983-12-23 1987-05-06 The Goodyear Tire & Rubber Company Method of making an elastic air spring member and said member
EP0172340A1 (de) * 1984-08-09 1986-02-26 Hüls Aktiengesellschaft Energie aufnehmende Kunststoff-Formteile
US4895352A (en) * 1989-01-09 1990-01-23 Simmons Company Mattress or cushion spring array
US5098124A (en) * 1990-09-06 1992-03-24 Automotive Technologies International Inc. Padding to reduce injuries in automobile accidents
US6000079A (en) * 1994-07-18 1999-12-14 Dranger; Jan Elements for furniture items, furniture items including such elements and method of manufacturing of such elements
US5799987A (en) * 1995-06-05 1998-09-01 Sampson; Richard K. Fluid fitting coupling system
US5937885A (en) * 1995-06-05 1999-08-17 Value Plastics, Inc. Fluid fitting coupling system
US6616197B2 (en) 1995-06-05 2003-09-09 Kent Systems, Llc Resilient retention method
US6283869B1 (en) * 1996-06-12 2001-09-04 Kwd Kupplungswerk Dresden Gmbh Toothed coupling
US6032890A (en) * 1996-09-23 2000-03-07 Sonoco Development, Inc. Stacking stable yarn carrier for package dyeing
US6113082A (en) * 1997-06-27 2000-09-05 Nishikawa Sangyo Co., Ltd. Spring
US6101651A (en) * 1998-04-03 2000-08-15 Wing Hang (3Y) Industries Ltd. Pillow core
US20030208849A1 (en) * 1999-04-20 2003-11-13 Wilkinson John W. Inflatable cushioning device with manifold system
US20050125905A1 (en) * 1999-04-20 2005-06-16 John Wilkinson Inflatable cushioning device with manifold system
US20080028534A1 (en) * 1999-04-20 2008-02-07 M.P.L. Limited Mattress having three separate adjustable pressure relief zones
US8122545B2 (en) 1999-04-20 2012-02-28 M.P.L. Limited Inflatable cushioning device with manifold system
US10357114B2 (en) 1999-04-20 2019-07-23 Wcw, Inc. Inflatable cushioning device with manifold system
USRE44584E1 (en) 1999-04-20 2013-11-12 M.P.L. Limited Inflatable cushioning device with manifold system
US7878553B2 (en) 2003-09-12 2011-02-01 Value Plastics, Inc. Releasable connection assembly for joining tubing sections
US20050273938A1 (en) * 2004-06-09 2005-12-15 The Coleman Company, Inc. Airbed utilizing extruded coils
US20060033252A1 (en) * 2004-08-13 2006-02-16 Elmoselhy Salah A M Sigma Sigma-springs for suspension systems
US7448653B2 (en) 2005-06-10 2008-11-11 Value Plastics, Inc. Female connector for releasable coupling with a male connector defining a fluid conduit
US7770939B2 (en) 2005-06-10 2010-08-10 Value Plastics, Inc. Female connector for releasable coupling with a male connector defining a fluid conduit
US8113546B2 (en) 2005-06-10 2012-02-14 Value Plastics, Inc. Latching female fluid tubing coupler
US7337485B2 (en) 2005-08-31 2008-03-04 The Coleman Company, Inc. Double high airbed utilizing coils
US20070044243A1 (en) * 2005-08-31 2007-03-01 The Coleman Company, Inc. Double high airbed utilizing coils
US8397756B2 (en) 2006-01-20 2013-03-19 Nordson Corporation 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
USD645547S1 (en) 2007-11-19 2011-09-20 Value Plastics, Inc. Male quick connect fitting
USD654573S1 (en) 2007-11-19 2012-02-21 Value Plastics, Inc. Female quick connect fitting
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
US8596688B2 (en) 2008-07-03 2013-12-03 Nordson Corporation Latch assembly for joining two conduits
USD629894S1 (en) 2008-07-03 2010-12-28 Value Plastics, Inc. Male body of connector for fluid tubing
US8448994B2 (en) 2008-07-03 2013-05-28 Nordson Corporation Latch assembly for joining two conduits
US8235426B2 (en) 2008-07-03 2012-08-07 Nordson Corporation Latch assembly for joining two conduits
USD655393S1 (en) 2009-06-23 2012-03-06 Value Plastics, Inc. Multi-port valve
US10711930B2 (en) 2009-12-09 2020-07-14 Nordson Corporation Releasable connection assembly
USD649240S1 (en) 2009-12-09 2011-11-22 Value Plastics, Inc. Male dual lumen 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
US9464741B2 (en) 2009-12-09 2016-10-11 Nordson Corporation Button latch with integrally molded cantilever springs
US10001236B2 (en) 2009-12-09 2018-06-19 General Electric Company Male bayonet connector
US9388929B2 (en) 2009-12-09 2016-07-12 Nordson Corporation Male bayonet connector
US9046205B2 (en) 2009-12-09 2015-06-02 Nordson Corporation Fluid connector latches with profile lead-ins
USD650478S1 (en) 2009-12-23 2011-12-13 Value Plastics, Inc. Female dual lumen connector
CN101871497A (zh) * 2010-07-01 2010-10-27 苏州纽威机床设计研究院有限公司 一种刚性弹簧
USD663022S1 (en) 2011-02-11 2012-07-03 Nordson Corporation Male body of connector for fluid tubing
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
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
USD712537S1 (en) 2011-07-29 2014-09-02 Nordson Corporation 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
US20140042679A1 (en) * 2012-01-20 2014-02-13 Xilinmen Furniture Co., Ltd. Elasticity-adjustable air pressure spring
US9103395B2 (en) * 2012-01-20 2015-08-11 Xilinmen Furniture Co., Ltd. Elasticity-adjustable air pressure spring
US20130234380A1 (en) * 2012-03-06 2013-09-12 Kia Motors Corp. Spring of suspension for vehicle
FR3041400A1 (fr) * 2015-09-17 2017-03-24 Peugeot Citroen Automobiles Sa Ressort de suspension de vehicule automobile
USD967955S1 (en) 2016-10-31 2022-10-25 Nordson Corporation Blood pressure connector
USD838366S1 (en) 2016-10-31 2019-01-15 Nordson Corporation Blood pressure connector
USD964557S1 (en) 2016-10-31 2022-09-20 Nordson Corporation Blood pressure connector
USD964558S1 (en) 2016-10-31 2022-09-20 Nordson Corporation Blood pressure connector
USD961070S1 (en) 2016-10-31 2022-08-16 Nordson Corporation Blood pressure connector
WO2018084926A1 (en) * 2016-11-04 2018-05-11 Raytheon Company Bi-directional non-linear spring
EP3751169A1 (en) * 2016-11-04 2020-12-16 Raytheon Company Bi-directional non-linear spring
US11015669B2 (en) 2016-11-04 2021-05-25 Raytheon Company Bi-directional non-linear spring
JP2020500282A (ja) * 2016-11-04 2020-01-09 レイセオン カンパニー 双方向非線形ばね
US10337577B2 (en) 2016-11-04 2019-07-02 Raytheon Company Bi-directional non-linear spring
US10221993B2 (en) 2016-11-04 2019-03-05 Raytheon Company Vibration suspension system
US10041622B2 (en) 2016-11-04 2018-08-07 Raytheon Company Vibration suspension system
IL266263B2 (en) * 2016-11-04 2023-06-01 Raytheon Co Bidirectional nonlinear spring
US11773840B2 (en) * 2020-04-29 2023-10-03 Yonwoo Co., Ltd. Elastic member and pump assembly including the same
US12173768B2 (en) 2020-04-29 2024-12-24 Yonwoo Co., Ltd. Elastic member and pump assembly including the same

Also Published As

Publication number Publication date
DE7329565U (enrdf_load_stackoverflow) 1974-01-03
FR2241723A1 (enrdf_load_stackoverflow) 1975-03-21
CH582316A5 (enrdf_load_stackoverflow) 1976-11-30
GB1428858A (en) 1976-03-17
DE2340917A1 (de) 1975-02-20
CA967597A (en) 1975-05-13
BE803851A (fr) 1973-12-17

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