US20110308062A1 - Modular ratchet cap - Google Patents
Modular ratchet cap Download PDFInfo
- Publication number
- US20110308062A1 US20110308062A1 US13/194,357 US201113194357A US2011308062A1 US 20110308062 A1 US20110308062 A1 US 20110308062A1 US 201113194357 A US201113194357 A US 201113194357A US 2011308062 A1 US2011308062 A1 US 2011308062A1
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- US
- United States
- Prior art keywords
- pawl member
- cap
- pawl
- providing
- assembly
- 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.)
- Abandoned
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/04—Tank inlets
- B60K15/0406—Filler caps for fuel tanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
- B60K15/03—Fuel tanks
- B60K15/04—Tank inlets
- B60K15/0406—Filler caps for fuel tanks
- B60K15/0409—Provided with a lock
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- 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
- F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
- F16K24/04—Devices, e.g. valves, for venting or aerating enclosures for venting only
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- 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
- Y10T137/2931—Diverse fluid containing pressure systems
- Y10T137/3003—Fluid separating traps or vents
- Y10T137/3084—Discriminating outlet for gas
- Y10T137/309—Fluid sensing valve
- Y10T137/3099—Float responsive
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- 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
- Y10T137/8593—Systems
- Y10T137/86292—System with plural openings, one a gas vent or access opening
- Y10T137/86324—Tank with gas vent and inlet or outlet
- Y10T137/86332—Vent and inlet or outlet in unitary mounting
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- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
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- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49863—Assembling or joining with prestressing of part
- Y10T29/49876—Assembling or joining with prestressing of part by snap fit
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- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49904—Assembling a subassembly, then assembling with a second subassembly
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- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49945—Assembling or joining by driven force fit
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- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49947—Assembling or joining by applying separate fastener
- Y10T29/49959—Nonresilient fastener
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- 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
- Y10T70/00—Locks
- Y10T70/50—Special application
- Y10T70/5093—For closures
- Y10T70/554—Cover, lid, cap, encasing shield
- Y10T70/5562—Removable
- Y10T70/5571—Freely movable when locked
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- 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
- Y10T70/00—Locks
- Y10T70/50—Special application
- Y10T70/5093—For closures
- Y10T70/554—Cover, lid, cap, encasing shield
- Y10T70/5562—Removable
- Y10T70/5575—Directly seating
- Y10T70/558—Cover-carried lock
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- 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
- Y10T70/00—Locks
- Y10T70/50—Special application
- Y10T70/5093—For closures
- Y10T70/554—Cover, lid, cap, encasing shield
- Y10T70/5562—Removable
- Y10T70/5593—Movably seating
- Y10T70/5597—Cover-carried lock
- Y10T70/5602—Dead bolt
Abstract
A method of assembling selected modular ratchet cap assemblies. In one aspect, the method includes the acts of providing identical threaded portions, providing identical cover portions, providing a first vent module, providing a second vent module different from the first vent module, selecting the first vent module and coupling together the first vent module with one of the identical threaded portions and one of the identical cover portions to form a first cap assembly, and selecting the second vent module and coupling together the second vent module with another one of the identical threaded portions and another one of the identical cover portions to form a second cap assembly. In other aspects, the method includes assembling first and second cap assemblies with identical cover portions and threaded portions, but having different pawl members providing different cap-installing torque limits. In other aspects, the method includes providing first and second cap assemblies with similar components, but having covers or portions thereof provided with different individualized characteristics for different applications.
Description
- The present application is a divisional of co-pending U.S. patent application No. 11/624,709, filed Jan. 19, 2007, which claims priority to U.S. patent application No. 60/760,670, filed Jan. 20, 2006, entitled VENT INCLUDING A SEPARATOR MEMBRANE, and to U.S. patent application No. 60/760,613, filed Jan. 20, 2006, entitled MODULAR RATCHET CAP, and to U.S. patent application No. 60/760,674, filed Jan. 20, 2006, entitled LOCKING CAP, and to U.S. patent application No. 60/862,077, filed Oct. 19, 2006, entitled LOCKING CAP, and to U.S. patent application No. 60/862,074, filed Oct. 19, 2006, entitled VENT INCLUDING A SEPARATOR MEMBRANE, and to U.S. patent application No. 11/624,708, filed Jan. 19, 2007, entitled LOCKING CAP, now U.S. Pat. No. 7,624,889, issued Dec. 1, 2009, and to U.S. patent application No. 11/624,711, filed Jan. 19, 2007, entitled VENT INCLUDING A SEPARATOR MEMBRANE, and is related to U.S. patent application No. ________, filed _________ (Attorney Docket No. 053196-9021-03), entitled MODULAR RATCHET CAP, the entire contents of all of which are hereby incorporated by reference.
- The present invention relates to caps for closing respective openings, such as a filling tube of a fuel tank and, more particularly the invention relates to modular cap assemblies.
- In independent aspects and in some constructions, the invention provides modular cap assemblies for closing openings, such as a threaded filling tube on a fuel tank.
- Independent features and independent advantages of the present invention will become apparent to those skilled in the art upon review of the detailed description and drawings.
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FIG. 1 is a perspective view of a first modular ratchet cap construction with a non-vented inner body; -
FIG. 2 is an exploded assembly view of the cap ofFIG. 1 ; -
FIG. 3 is a top view of the cap ofFIG. 1 ; -
FIG. 4 is a first cross-sectional view of the cap ofFIG. 1 , taken along line 4-4 ofFIG. 3 ; -
FIG. 5 is a first detail view of mating portions of the cap as shown inFIG. 4 ; -
FIG. 6 is a second detail view of additional mating portions of the cap as shown inFIG. 4 ; -
FIG. 7 is a second cross-sectional view of the cap ofFIG. 1 , taken along line 7-7 ofFIG. 3 ; -
FIG. 8 is a vented inner body for optional direct replacement of the non-vented inner body shown in at leastFIGS. 2 , 4, 6, and 7; -
FIG. 9 is a perspective view of a second modular ratchet cap construction having a first type of vent module; -
FIG. 10 is an exploded assembly view of the cap ofFIG. 9 ; -
FIG. 11 is a cross-sectional view of the cap ofFIG. 9 , taken along line 11-11 ofFIG. 9 ; -
FIG. 12 is an exploded assembly view of a third modular ratchet cap construction having a second type of vent module; -
FIG. 13 is a cross-sectional view of the cap ofFIG. 12 , taken along line 13-13 ofFIG. 12 ; -
FIG. 14 is an exploded assembly view of a fourth modular ratchet cap construction having a third type of vent module; -
FIG. 15 is a cross-sectional view of the cap ofFIG. 14 , taken along line 15-15 ofFIG. 14 ; -
FIG. 16 is a top view of an alternate pawl member for optional direct replacement of the pawl members shown in at leastFIGS. 9-15 ; and -
FIG. 17 is a top view of an alternate cover portion for optional direct replacement of the cover portions shown in at leastFIGS. 9-15 . - Before any independent features and at least one embodiment of the invention are explained in detail, it is to be understood that the invention is not limited in its application to the details of the construction and the arrangement of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced or of being carried out in various ways. Also, it is understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.
- Although references are made below to directions, such as left, right, up, down, top, bottom, front, rear, forward, back, etc., in describing the drawings, the references are made relative to the drawings (as normally viewed) for convenience. These directions are not intended to be taken literally or to limit the present invention in any form.
- The use of “including”, “having”, and “comprising” and variations thereof herein is meant to encompass the items listed thereafter and equivalents thereof as well as additional items. The use of letters to identify elements of a method or process is simply for identification and is not meant to indicate that the elements should be performed in a particular order.
- In independent aspects and in the illustrated constructions, modular cap assemblies are provided. In some constructions, a cap assembly generally includes components which are common to multiple cap configurations and which are used with substitutable components to provide a desired cap configuration (e.g., ratchet cap, locking cap, cap with vent, cap with carbon canister, cap with tether (of various lengths), combinations of one or more of such components, etc.), a desired cap size (e.g., for use with a given size threaded opening with or without such additional substitutable components), a desired cap appearance (e.g., color(s) to meet end operator requirements, various indicators on cap components, etc.), etc. In some constructions, a cap assembly may include replaceable components such that if, for example, a component is worn or damaged (e.g., a ratchet assembly, a locking mechanism, a seal/gasket, etc.), that component may be easily replaced (by the operator, a service center, the manufacturer, etc.) without requiring replacement of the entire cap assembly, or necessarily any of the other components thereof.
- A first
modular cap assembly 20, which is shown inFIGS. 1-7 , includes aratchet assembly 24 and atether assembly 28. Thecap assembly 20 has a threaded portion 32 (i.e., “inner body”), which is able to be tightened onto a threaded opening up to a predetermined torque limit via theratchet assembly 24. In the illustrated construction, theratchet assembly 24 limits the amount of torque in the tightening direction (e.g., when thecap assembly 20 is installed) transmitted to the threadedportion 32 to, for example, prevent over-tightening of thecap assembly 20, prevent damage to the threadedportion 32, provide audible and/or tactile feedback to the user that a sufficient level of torque (e.g., at or greater than a minimum retention torque) has been achieved, etc. Also, in the illustrated construction, theratchet assembly 24 does not limit the amount of torque in the removal direction (e.g., when thecap assembly 20 is removed). Thetether assembly 28 and the audible feedback of the ratchet, among other features qualify thecap assembly 20 in some embodiments for usage on vehicles as regulated by federal and state transportation and environmental laws (e.g., 2007 California state regulations and EPA 2010 regulations). - The
cap assembly 20 includes acover portion 36, the threadedportion 32, and apawl member 40 between thecover portion 36 and the threadedportion 32. Thepawl member 40 is ring-shaped and is rotatable with thecover portion 36. Thecover portion 36 includesrecesses 42 and projections 44 (as perceived from the inside of the cover portion 36), and thepawl member 40 includesrecesses 46 and projections 48 (seeFIG. 2 ) that inter-engage with therecesses 42 andprojections 44 of thecover portion 36 to provide the rotational connection therewith. In the illustrated construction, therecesses 42 and theprojections 44 on thecover portion 36 are incorporated into the appearance and/or function of the cover portion 36 (e.g., the outer profile or grasp surface of thecover portion 36 corresponds to therecesses 42 and theprojections 44 on the inside of the cover portion 36). - The
pawl member 40 is positioned between a lower-facingsurface 52 of thecover portion 36 and an upper-facingsurface 56 of the threadedportion 32. Pawlarms 60 on thepawl member 40 engagepawl teeth 64 on the threadedportion 32 to transmit torque from thecover portion 36 through thepawl member 40 to the threadedportion 32. If the torque exceeds a predetermined torque amount (determined at least in part by the construction of the pawl arms 60), thepawl arms 60 flex and ride over the associatedpawl teeth 64 such that thepawl member 40 and thecover portion 36 rotate relative to the threadedportion 32, and the torque-transmitting connection between thecover portion 36 to the threadedportion 32 is at least momentarily disengaged. - The operator is able to loosen or un-twist the
cap assembly 20 from the mating part (threaded opening, not shown) by gripping the outer profile of thecover portion 36 and twisting, for example, in a counter-clockwise direction. Under this torque load, thepawl member 40 is turned directly by thecover portion 36 through the fiverecesses 46 andprotrusions 48 on thepawl member 40, which engage therecesses 42 andprotrusions 44 of thecover portion 36. - In the illustrated construction, the
pawl member 40 includes fivepawl arms 60, which engage thepawl teeth 64 on the threadedportion 32. Eachpawl arm 60 includes aresilient portion 60A and anengagement portion 60B. Theengagement portions 60B of thepawl arms 60 are designed to engage definitely (i.e., without slip) under counter-clockwise rotation (e.g., when removing thecap assembly 20 from the mating part) of thecover portion 36 by the operator. Theengagement portions 60B of thepawl arms 60 are further designed to provide torque-limited ratchet action under clockwise rotation (e.g., when installing thecap assembly 20 on the mating part) of thecover portion 36 by the operator. When the predetermined torque limit is reached during tightening of thecap assembly 20 by the operator, thepawl arms 60 will deflect from thepawl teeth 64 on the threadedportion 32 and allow thecover portion 36 to rotate relative to the threadedportion 32, alerting the user that an acceptable amount of torque (i.e., the predetermined torque limit) has been reached and protecting the threadedportion 32 from further tightening and potential damage from over-tightening. In the illustrated construction, thepawl arms 60 deflect generally radially inward toward a central axis A of thecap assembly 20 such that thepawl arms 60, regardless of whether or not they are deflecting, are always lying in the same plane transverse to the central axis A. - In the illustrated construction, the
cap assembly 20 also includes anassembly ring 68, aretainer 72, and agasket 76. Theretainer 72 snaps together with the threadedportion 32 and provides an attachment location for the tether assembly 28 (if thetether assembly 28 is desired for theparticular cap assembly 20 as shown in at leastFIGS. 1 , 2, 4, and 7). Theassembly ring 68 is disposed at a lower end of thecover portion 36 and snaps together with thecover portion 36 in a position so as to provide aretaining surface 80 for fixing the threadedportion 32 axially with respect to thecover portion 32. A projection 81 (e.g., a radially outwardly extending annular wall) on the threadedportion 32 is engaged by theretaining surface 80. Thecover portion 36 and theassembly ring 68 includerespective mating portions 82 and 84 (seeFIGS. 2 , 4, and 5) that snap together with each other, effectively coupling thecover portion 36 and the threadedportion 32 together. -
FIGS. 4-7 illustrate thecap assembly 20 in section views, showing the relationships between mating parts and the positioning of all the elements. In the illustratedcap assembly 20, thetether assembly 28 is snapped into anopening 88 in theretainer 72, and theretainer 72 holds thetether assembly 28 to the remainder of thecap assembly 20. Specifically, theretainer 72 includes a projection 92 (e.g., an annular wall with a barbed edge) that snaps together with a projection 96 (e.g., an annular wall with a barbed edge) on the threadedportion 32. When theretainer 72 is engaged with the threadedportion 32, thegasket 76 is held fixed between an upper-facingsurface 100 of theretainer 72 and a lower-facing surface 104 of the threadedportion 32. Thetether assembly 28 is provided to retain thecap assembly 20 with an associated structure (e.g., the mating part). Thetether assembly 28 includes atether 108 having a particular length, a pair ofcoupling portions 112, and anend portion 116 providing a particular type of interface with the mating part. The tether provides protection against losing the cap when removed and it also reminds the operator to re-secure the cap for example, after filling the tank, as the cap hangs off of the tank. - In other constructions (not shown), the
tether assembly 28 is substituted with another different tether assembly (e.g., having a different length and/or interface type, etc.). Thetether assembly 28 may be replaced (e.g., if worn, damaged, etc.) or may be removed altogether without affecting the construction of thecap assembly 20 in any other way. For example, alternate tether assemblies, components of which may be substituted for thetether assembly 28 illustrated in at leastFIGS. 1 , 2, 4, and 7, are described and illustrated in U.S. Pat. Nos. 4,872,587, issued Oct. 10, 1989; 5,165,565, issued Nov. 24, 1992; 5,320,240, issued Jun. 14, 1994; and 6,109,467, issued Aug. 29, 2000; the entire contents of all of which are hereby incorporated by reference. - As described above, the
cap assembly 20 is assembled primarily by snapping adjacent components together. As such, each portion of thecap assembly 20 that snaps together with another portion has at least one engagement portion (e.g., projection, barb, etc.). An alternate substitute part may replace a similar part of thecap assembly 20 as long as it includes the requisite engagement portion. For example, the threadedportion 32 is simply replaced by a similar-shaped part with an internal thread having a different size, pitch, etc. for conforming to industry standards or custom applications. Furthermore, thepawl member 40 and thegasket 76, which do not snap together with any other components, are also easily swapped for alternate substitute or replacement parts. For example, a new pawl member may be introduced to thecap assembly 20 for providing a different torque limit. A new gasket may be introduced to thecap assembly 20, the new gasket having a different cross-sectional shape or being constructed of a different material than theoriginal gasket 76, for example. - Many additional modifications or part substitutions or replacements may also be realized, which enhance the modularity of the
cap assembly 20. Theassembly ring 68 is simply replaced with different color assembly rings of the same or modified shape to match with color schemes of the associated enclosure or product (e.g., fuel tank, vehicle, etc.) or to provide an indication of the system (e.g., a designation of the contents of the associated enclosure or tank) by color-coding. Thecover portion 36 is simply replaced with a substitute cover portion provided with symbols, printed indicia, etc. specific to a particular application and/or manufacturer as discussed further below. -
FIG. 8 illustrates a vented threadedportion 120 for direct substitution in place of the threadedportion 32, which is non-vented. The vented threadedportion 120 includes avent aperture 122 establishing a flow passage for air between the inside of the threadedportion 120 and the outside of the cap assembly 20 (i.e., air may come in or be expelled between thecover portion 36 and the threadedportion 120 adjacent theassembly ring 68. Other features of the threadedportion 120 remain as shown and described above. In alternate embodiments, the venting configuration may include components which are similar to a venting structure described and illustrated in U.S. patent application No. 60/760,670, filed Jan. 20, 2006, U.S. patent application No. 60/862,074, filed Oct. 19, 2006, and U.S. patent application No. 11/624,711, filed Jan. 19, 2007, the entire contents of which are hereby incorporated by reference. - In some independent aspects and in some constructions, the threaded
portion 120 may integrate a carbon canister. Thecap assembly 20 may include structure which is similar to the canister structure described and illustrated in U.S. patent application No. 11/058,063, filed Feb. 14, 2005, now Publication No. 2006/0011173 A1, published Jan. 19, 2006, the entire contents of which are hereby incorporated by reference. - In some independent aspects and in some constructions, the
cap assembly 20 may include a locking mechanism operable between a locked condition, in which the cap is inhibited from being removed from the mating part, and an unlocked condition, in which the cap is removable from the mating part. The locking mechanism may include components which are similar to components of the locking cap described and illustrated in U.S. patent application No. 60/760,674, filed Jan. 20, 2006, U.S. patent application No. 60/862,077, filed Oct. 19, 2006, and U.S. patent application No. 11/624,708, filed Jan. 19, 2007, now U.S. Pat. No. 7,624,889, issued Dec. 1, 2009, the entire contents of which are hereby incorporated by reference. - In some independent aspects and in some constructions, the
cover portion 36 is provided with an interchangeable top surface to allow internal features to protrude through (e.g., a portion of a locking mechanism, a vent, etc.). The interchangeable top surface may also be provided with varying graphics, indicia, etc., based on, for example, the tank contents, manufacturer/operator requirements, etc., or may provide other imprinted information for the operator. -
FIGS. 9-11 illustrate a secondmodular cap assembly 150. In addition to acover portion 154, a threadedportion 158, apawl member 162, aretainer 166, and agasket 170, thecap assembly 150 includes avent module 174 and a feltring 178. Thecover portion 154 snaps directly to the threadedportion 158 without a separate assembly ring. Thecover portion 154 and the threadedportion 158 includerespective projections portions ring 178 is positioned between thecover portion 154 and the threadedportion 158 along a flow passage between the outside of thecap assembly 150 and the inside of the threadedportion 158, allowing gases to pass through and preventing substantial passage of debris. - The
pawl member 162 is engaged with thecover portion 154 to prevent substantial relative rotation between thepawl member 162 and thecover portion 154.Respective engagement portions cover portion 154 and thepawl member 162. Thepawl member 162 includespawl arms 196, each including aresilient portion 200 and anengagement portion 204. Theengagement portions 204 engagepawl teeth 208 on the threadedportion 158. The engagement between thepawl member 162 and the threadedportion 158 is substantially the same as that described above with reference to thecap assembly 20 in that thepawl member 162 provides only a limited amount of torque to be transmitted to the threadedportion 158 in the cap-installing direction and does not limit the torque in the cap-removing direction. - The
gasket 170 is held in place simply by engaging anannular wall 212 extending downwardly from the threadedportion 158. Theretainer 166 is therefore not necessary for positioning thegasket 170, but it provides theopening 216 for attaching thetether assembly 28 shown in at leastFIGS. 1 , 2, 4, and 7. In thecap assembly 150 illustrated inFIGS. 9-11 , anexternal tether 220 is assembled by snapping to thecover portion 154, which is provided with a mountingaperture 222. Theretainer 166 includes a projection 224 (e.g., barbed annular wall) for snapping onto thevent module 174. In some embodiments, theretainer 166 is structurally identical to theretainer 72 of thecap assembly 20, even though theretainer 72 engages directly with the threadedportion 32 and thegasket 76. - The
vent module 174 consists of avent member 228 having avent aperture 232 therein. Thevent member 228 has anengagement portion 234 that engages aprojection 236 on the threadedportion 158 such that thevent member 228 may be welded to the threadedportion 158. Alternately, thevent member 228 is simply snapped to the threadedportion 158, and in such a construction, an additional gasket may be provided. In a welded construction, alternative welding techniques (e.g., spin welding, ultrasonic welding, etc.) may be employed for coupling plastic or polymeric materials. - As discussed above with reference to the
cap assembly 20 and as is discussed further below, various components of thecap assembly 150 may be directly substituted by alternate components and/or simply replaced (e.g., if worn or damaged) without replacing theentire cap assembly 150. -
FIGS. 12 and 13 illustrate a thirdmodular cap assembly 260. Thecap assembly 260 contains some identical components as those found in thesecond cap assembly 150. Such components are given identical reference numerals. Thecap assembly 260 includes acover portion 262, which does not feature the mountingaperture 222 found in thecover portion 154 of thecap assembly 150. Thecap assembly 260 is shown with an internal-style tether assembly 263. Therefore, thecover portion 262 does not require means for mounting theexternal tether 220, but thecover portions internal tether assembly 263 to theexternal tether 220, thecover portion 154 may be provided in thecap assembly 260 instead of thecover portion 262. - The
cap assembly 260 is provided with analternate vent module 264, which replaces thevent module 174 shown with thecap assembly 150. Thevent module 264 includes avent member 268 and anumbrella valve 272. Theumbrella valve 272 is operable to control the in/out flow of air through a pair ofvent apertures 274 and through the flow passage of thecap assembly 260 between the inside of the threadedportion 158 and the outside of thecover portion 154. Thevent member 268 includes anengagement portion 276 suitable for connection with theprojection 236 of the threadedportion 158 and welding thereto. Alternately, thevent member 268 and the threadedportion 158 are provided with mating projections for snapping together. -
FIGS. 14 and 15 illustrate a fourthmodular cap assembly 300 similar to thecap assemblies vent module 304. Thecap assembly 300 is shown with thecover portion 262 in the exemplary construction, but thecover portion 154 is optional in place of thecover portion 262. Also, thecap assembly 300 is illustrated without a tether, but any suitable tether or tether assembly (e.g., including internal and external styles) may be added. - The
vent module 304 includes avent member 308 having anengagement portion 312 for attachment with the threadedportion 158. Theengagement portion 312 fits together with theprojection 236 of the threadedportion 158 in a manner suitable for welding the two components together. In an alternate embodiment, thevent member 308 may snap together with the threadedportion 158. Thevent member 308 is provided with anopening 316 to receive a tether assembly (e.g., an internal-style tether assembly) if desired. - The
vent module 304 includes aretainer plate 320, which retains one end of apressure relief spring 324 inside thevent member 308. The opposite end of thepressure relief spring 324 is adjacent avalve retainer portion 328. Substantially set into thevalve retainer portion 328 is afirst valve element 332. Thepressure relief spring 324 biases thevalve retainer portion 328 and thefirst valve element 332 toward ashoulder 334 formed on the inside of thevent member 308. Asecond valve element 336 rests against a bottom portion of thefirst valve element 332. Avacuum relief spring 340 is positioned adjacent thesecond valve element 336 to bias thesecond valve element 336 toward thefirst valve element 332. Essentially, two seals are formed. A first seal exists between thefirst valve element 332 and theshoulder 334. A second seal is formed between thefirst valve element 332 and thesecond valve element 336. The seals are both annular and lie in a common plane. The seals divide thevent module 304 into afirst chamber 344, in which thepressure relief spring 324 resides, and asecond chamber 348, in which thevacuum relief spring 340 resides. Afirst vent passage 352, formed in theretainer plate 320, provides fluid communication between thefirst chamber 344 and thecap assembly 300. Asecond vent passage 356, formed in thevent member 308, provides fluid communication between thesecond chamber 348 and the inside of the threadedportion 158. - In the illustrated construction, the
pressure relief spring 324 provides a stronger biasing force than that of thevacuum relief spring 340. Thus, at rest (i.e., zero pressure differential between thefirst chamber 344 and the second chamber 348) thepressure relief spring 324 biases thefirst valve element 332 closed against theshoulder 334, and thevacuum relief spring 340 biases thesecond valve element 336 closed against thefirst valve element 332. Positive pressure inside the threaded portion 158 (e.g., corresponding to a build-up of pressure within a tank associated with the cap assembly 300) and in communication with thesecond chamber 348 causes opening of the seal between thefirst valve element 332 and theshoulder 334. The amount of pressure required to open the seal is dependent upon thepressure relief spring 324, which in some embodiments is configured to compress and allow opening of the seal between thefirst valve element 332 and theshoulder 334 at a pressure of about 3.5 psi. Negative or vacuum pressure inside the threaded portion 158 (e.g., corresponding to a vacuum effect within a tank associated with the cap assembly 300) and in communication with thesecond chamber 348 causes opening of the seal between thesecond valve element 336 and thefirst valve element 332 as thesecond valve element 336 compresses thevacuum relief spring 340 and thefirst valve element 332 is held in position by theshoulder 334. The amount of vacuum pressure required to open the seal is dependent upon thevacuum relief spring 340, which in some embodiments is configured to compress and allow opening of the seal between thesecond valve element 336 and thefirst valve element 332 at a vacuum pressure of about 0.5 psi. - The
cap assemblies respective vent modules vent modules engagement portion vent modules portion 158 may be mated to any one of thevent modules vent modules vent module 174 completes acap assembly 150 as shown inFIGS. 9-11 . Choosing thevent module 264 completes acap assembly 260 as shown inFIGS. 12 and 13 . Choosing thevent module 304 completes acap assembly 300 as shown inFIGS. 14 and 15 . -
FIG. 16 is a top view of apawl member 372 that is nearly identical to thepawl members 162 present in each of thecap assemblies pawl member 372 includespawl arms 376, each having aresilient portion 380 with a thickness T and anengagement portion 384, which is identical to that of theengagement portion 204 of thepawl member 162. The thickness T of thepawl member 372 is less than a corresponding thickness of thefirst pawl member 162. The thickness T affects the resilient performance (i.e., the flexibility) of thepawl arms 376, which in turn, affects the amount of torque that thepawl member 372 is able to transfer to the threaded portion 158 (i.e., the predetermined torque limit). The narrowerresilient portions 380 of thepawl member 372 provide a predetermined torque limit that is less than that of thepawl member 162. Thepawl member 372 may be directly exchanged with thepawl member 162 in any of thecap assemblies pawl member 162, which can provide a vastly different ratcheting performance, providing either lesser or greater predetermined torque limits than that of thepawl member 162. -
FIG. 17 illustrates acover portion 400 that can be identical in general structure to either of thecover portions cover portions cap assemblies cover portion 400 includes aportion 404 that is able to be removed and reinstalled on thecover portion 400 to provide exchangeability. Theexchangeable portion 404 is generally circular and has anouter surface 408 with acompany logo 412,symbol 416, and printed indicia 420 (i.e., indicating acceptable fuel type for the apparatus associated with the respective cap assembly). These are only exemplary forms of visibly individualizing thecover portion 400 by way of theexchangeable portion 404. Theexchangeable portion 404 can alternately be provided as a specific color or colors that coordinate with an apparatus or designate fuel type, safety information, etc. Alternately, thecover portions
Claims (20)
1. A method of assembling selected cap assemblies, the method comprising the acts of:
providing identical outer covers;
providing identical inner portions having threads and having pawl teeth;
providing a first pawl member positionable between any one of the outer covers and any one of the inner portions, the first pawl member being operable to transmit a cap-installing torque from the one outer cover to the pawl teeth of the one inner portion up to a first predetermined torque;
providing a second pawl member positionable between any one of the outer covers and any one of the inner portions, the second pawl member being operable to transmit a cap-installing torque from the one outer cover to the pawl teeth of the one inner portion up to a second predetermined torque different from the first predetermined torque;
selecting the first pawl member for assembly between a first one of the identical outer covers and a first one of the identical inner portions of a first cap assembly, the first pawl member providing an installation torque limit for the first cap assembly equal to the first predetermined torque;
selecting the second pawl member for assembly between a second one of the identical outer covers and a second one of the identical inner portions of a second cap assembly, the second pawl member providing an installation torque limit for the second cap assembly equal to the second predetermined torque.
coupling the first outer cover to the first inner portion with the first pawl member therebetween; and
coupling the second outer cover to the second inner portion with the second pawl member therebetween.
2. The method of claim 1 , wherein providing a first pawl member includes providing a first pawl member of a first material, and wherein providing a second pawl member includes providing a second pawl member of a second material, the second material providing a different resiliency than the first material.
3. The method of claim 1 , further comprising the acts of:
providing a first pawl arm on the first pawl member, the first pawl arm having a first thickness; and
providing a second pawl arm on the second pawl member, the second pawl arm having a second thickness less than the first thickness.
4. The method of claim 1 , wherein coupling the first outer cover with the first inner portion includes directly engaging the first outer cover with the first inner portion in a snap engagement.
5. The method of claim 1 , wherein coupling the first outer cover with the first inner portion includes engaging the first outer cover with an assembly ring in a snap engagement, the first inner portion being retained by the assembly ring and coupled to the first outer cover.
6. The method of claim 1 , further comprising the act of assembling each one of the first cap assembly and the second cap assembly with additional components, all of the additional components being identical between the first cap assembly and the second cap assembly.
7. The method of claim 6 , wherein the additional components include identical gaskets, identical retainer portions, identical tether assemblies, and identical vent modules.
8. The method of claim 1 , further comprising the act of fitting together inter-engaging recesses and protrusions of the respective outer covers and pawl members of the first and second cap assemblies.
9. A method of assembling selected cap assemblies, the method comprising the acts of:
providing identical outer covers;
providing identical inner portions having threads and having pawl teeth;
providing a first pawl member of a first material, the first pawl member being positionable between any one of the outer covers and any one of the inner portions, the first pawl member being operable to transmit a cap-installing torque from the one outer cover to the pawl teeth of the one inner portion up to a first predetermined torque;
providing a second pawl member of a second material different than the first material, the second pawl member being positionable between any one of the outer covers and any one of the inner portions, the second pawl member being operable to transmit a cap-installing torque from the one outer cover to the pawl teeth of the one inner portion up to a second predetermined torque different from the first predetermined torque;
selecting the first pawl member for assembly between a first one of the identical outer covers and a first one of the identical inner portions of a first cap assembly, the first pawl member providing an installation torque limit for the first cap assembly equal to the first predetermined torque;
selecting the second pawl member for assembly between a second one of the identical outer covers and a second one of the identical inner portions of a second cap assembly, the second pawl member providing an installation torque limit for the second cap assembly equal to the second predetermined torque.
coupling the first outer cover to the first inner portion with the first pawl member therebetween; and
coupling the second outer cover to the second inner portion with the second pawl member therebetween.
10. The method of claim 9 , wherein coupling the first outer cover with the first inner portion includes directly engaging the first outer cover with the first inner portion in a snap engagement.
11. The method of claim 9 , wherein coupling the first outer cover with the first inner portion includes engaging the first outer cover with an assembly ring in a snap engagement, the first inner portion being retained by the assembly ring and coupled to the first outer cover.
12. The method of claim 9 , further comprising the act of assembling each one of the first cap assembly and the second cap assembly with additional components, all of the additional components being identical between the first cap assembly and the second cap assembly.
13. The method of claim 12 , wherein the additional components include identical gaskets, identical retainer portions, identical tether assemblies, and identical vent modules.
14. The method of claim 9 , further comprising the act of fitting together inter-engaging recesses and protrusions of the respective outer covers and pawl members of the first and second cap assemblies.
15. A method of assembling selected cap assemblies, the method comprising the acts of:
providing identical outer covers;
providing identical inner portions having threads and having pawl teeth;
providing a first pawl member having a first thickness, the first pawl member being positionable between any one of the outer covers and any one of the inner portions, the first pawl member being operable to transmit a cap-installing torque from the one outer cover to the pawl teeth of the one inner portion up to a first predetermined torque;
providing a second pawl member having a second thickness different than the first thickness, the second pawl member being positionable between any one of the outer covers and any one of the inner portions, the second pawl member being operable to transmit a cap-installing torque from the one outer cover to the pawl teeth of the one inner portion up to a second predetermined torque different than the first predetermined torque;
selecting the first pawl member for assembly between a first one of the identical outer covers and a first one of the identical inner portions of a first cap assembly, the first pawl member providing an installation torque limit for the first cap assembly equal to the first predetermined torque;
selecting the second pawl member for assembly between a second one of the identical outer covers and a second one of the identical inner portions of a second cap assembly, the second pawl member providing an installation torque limit for the second cap assembly equal to the second predetermined torque.
coupling the first outer cover to the first inner portion with the first pawl member therebetween; and
coupling the second outer cover to the second inner portion with the second pawl member therebetween.
16. The method of claim 15 , wherein coupling the first outer cover with the first inner portion includes directly engaging the first outer cover with the first inner portion in a snap engagement.
17. The method of claim 15 , wherein coupling the first outer cover with the first inner portion includes engaging the first outer cover with an assembly ring in a snap engagement, the first inner portion being retained by the assembly ring and coupled to the first outer cover.
18. The method of claim 15 , further comprising the act of assembling each one of the first cap assembly and the second cap assembly with additional components, all of the additional components being identical between the first cap assembly and the second cap assembly.
19. The method of claim 18 , wherein the additional components include identical gaskets, identical retainer portions, identical tether assemblies, and identical vent modules.
20. The method of claim 15 , further comprising the act of fitting together inter-engaging recesses and protrusions of the respective outer covers and pawl members of the first and second cap assemblies.
Priority Applications (1)
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US13/194,357 US20110308062A1 (en) | 2006-01-20 | 2011-07-29 | Modular ratchet cap |
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Application Number | Priority Date | Filing Date | Title |
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US86207706P | 2006-10-19 | 2006-10-19 | |
US11/624,709 US8074334B2 (en) | 2006-01-20 | 2007-01-19 | Modular ratchet cap |
US11/624,708 US7624889B2 (en) | 2006-01-20 | 2007-01-19 | Locking cap |
US11/624,711 US20070175514A1 (en) | 2006-01-20 | 2007-01-19 | Vent including a separator membrane |
US13/194,357 US20110308062A1 (en) | 2006-01-20 | 2011-07-29 | Modular ratchet cap |
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US11/624,709 Division US8074334B2 (en) | 2006-01-20 | 2007-01-19 | Modular ratchet cap |
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US11/624,709 Active 2030-09-12 US8074334B2 (en) | 2006-01-20 | 2007-01-19 | Modular ratchet cap |
US11/624,708 Expired - Fee Related US7624889B2 (en) | 2006-01-20 | 2007-01-19 | Locking cap |
US13/194,357 Abandoned US20110308062A1 (en) | 2006-01-20 | 2011-07-29 | Modular ratchet cap |
US13/194,401 Abandoned US20110277307A1 (en) | 2006-01-20 | 2011-07-29 | Modular ratchet cap |
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US11/624,708 Expired - Fee Related US7624889B2 (en) | 2006-01-20 | 2007-01-19 | Locking cap |
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US13/194,401 Abandoned US20110277307A1 (en) | 2006-01-20 | 2011-07-29 | Modular ratchet cap |
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2007
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- 2007-01-19 ES ES07250223T patent/ES2342685T3/en active Active
- 2007-01-19 DE DE200760000785 patent/DE602007000785D1/en active Active
- 2007-01-19 CN CNA2007100879061A patent/CN101066666A/en active Pending
- 2007-01-19 EP EP20070250226 patent/EP1810865B1/en active Active
- 2007-01-19 DE DE200760007301 patent/DE602007007301D1/en active Active
- 2007-01-19 CN CN201310137949.1A patent/CN103253127B/en active Active
- 2007-01-19 CN CN2007100879112A patent/CN101121382B/en active Active
- 2007-01-19 EP EP20070250223 patent/EP1810864B1/en not_active Not-in-force
- 2007-01-19 AT AT08075671T patent/ATE471836T1/en not_active IP Right Cessation
- 2007-01-19 US US11/624,711 patent/US20070175514A1/en not_active Abandoned
- 2007-01-19 AT AT07250223T patent/ATE465907T1/en not_active IP Right Cessation
- 2007-01-19 US US11/624,709 patent/US8074334B2/en active Active
- 2007-01-19 CN CN201310138368.XA patent/CN103253128B/en active Active
- 2007-01-19 EP EP20070250227 patent/EP1810863A1/en not_active Withdrawn
- 2007-01-19 EP EP20080075671 patent/EP1987977B1/en active Active
- 2007-01-19 EP EP20080075670 patent/EP1987976B1/en active Active
- 2007-01-19 AT AT08075670T patent/ATE474733T1/en not_active IP Right Cessation
- 2007-01-19 US US11/624,708 patent/US7624889B2/en not_active Expired - Fee Related
- 2007-01-19 CN CN2007100879076A patent/CN101067469B/en active Active
- 2007-01-19 DE DE200760006062 patent/DE602007006062D1/en active Active
- 2007-01-19 AT AT07250226T patent/ATE427232T1/en not_active IP Right Cessation
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2011
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US20160107112A1 (en) * | 2014-05-07 | 2016-04-21 | Dv Industries, Llc | Bi-stable Component Providing Indication of Proper Installation |
US9463401B2 (en) * | 2014-05-07 | 2016-10-11 | Dv Industries, Llc | Bi-stable component providing indication of proper installation |
US9643114B2 (en) * | 2014-05-07 | 2017-05-09 | Dv Industries, Llc | Elastic component providing indication of proper installation |
US9815008B2 (en) * | 2014-05-07 | 2017-11-14 | Dv Industries, Llc | Elastic component providing indication of proper installation |
US9821256B2 (en) | 2014-05-07 | 2017-11-21 | Dv Industries, Llc | Elastically deformable component providing indication of proper fluid filter installation and related methods |
EP3374048A4 (en) * | 2015-11-11 | 2019-06-19 | DV Industries, LLC | Elastically deformable component providing indication of proper fluid filter installation and related methods |
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