DE202006020494U1 - Pressure compensation element - Google Patents

Pressure compensation element

Info

Publication number
DE202006020494U1
DE202006020494U1 DE200620020494 DE202006020494U DE202006020494U1 DE 202006020494 U1 DE202006020494 U1 DE 202006020494U1 DE 200620020494 DE200620020494 DE 200620020494 DE 202006020494 U DE202006020494 U DE 202006020494U DE 202006020494 U1 DE202006020494 U1 DE 202006020494U1
Authority
DE
Germany
Prior art keywords
pressure compensation
chicane
membrane
8th
impact protection
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
DE200620020494
Other languages
German (de)
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.)
RST RABE SYSTEM TECHNIK GmbH
RST RABE-SYSTEM-TECHNIK GmbH
Original Assignee
RST RABE SYSTEM TECHNIK GmbH
RST RABE-SYSTEM-TECHNIK GmbH
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 RST RABE SYSTEM TECHNIK GmbH, RST RABE-SYSTEM-TECHNIK GmbH filed Critical RST RABE SYSTEM TECHNIK GmbH
Priority to EP06014305A priority Critical patent/EP1879438A1/en
Priority to DE200620020494 priority patent/DE202006020494U1/en
Publication of DE202006020494U1 publication Critical patent/DE202006020494U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F16TSTEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
    • F16T1/00Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
    • F16T1/12Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by excess or release of pressure
    • F16T1/14Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers with valves controlled by excess or release of pressure involving a piston, diaphragm, or bellows, e.g. displaceable under pressure of incoming condensate

Abstract

Pressure compensation element (2) for closing an access to a separate housing, with a receiving part (4), in which a semipermeable membrane (6) is arranged, and a Impact protection element (8), the receiving part (4) and the membrane (6) protects against mechanical effects from outside, characterized that this Receiving part (4) and the impact protection element (8) as one-piece Capsule (10) are formed.

Description

  • The The invention relates to a pressure compensation element according to the preamble of claim 1 and an arrangement according to the preamble of Claim 19.
  • in the Inside tightly formed housing can with a change in the climatic conditions undesirable condensation be formed. To prevent the formation of condensation, is known, the housing to provide with a pressure compensation element.
  • The Pressure compensation element is in an individually adapted bore screwed in the housing. Inside the pressure balance element is an air-permeable however waterproof Membrane (semipermeable) arranged, which separates the inside of the housing from the outside of the housing. Humidity can escape from the housing through the membrane. In contrast, sprayed water is kept away from the inside of the housing by the membrane.
  • The Pressure compensation elements consist of a receiving part in which the membrane is housed, and a lid, which serves as impact protection element serves. The lid is attached either to the receiving part, glued or welded with this. Im built into the housing Condition of the pressure compensation element, the lid protects the receiving part and the membrane from mechanical influences from outside, such as unintentional bumps or blows. To the Impact resistance of such pressure compensation element made of plastic continue to increase These were trained more massive. The pressure compensation element should relative to the usable membrane area however possible be made small so as not to hinder other component. As a result, pressure compensation elements that were particularly impact-resistant and Nevertheless, should be made small, made of metal. such However, pressure compensation elements are significantly more expensive than pressure equalization elements made of plastic. In addition, it is desirable, too to further improve the protection of pressure compensation elements made of metal.
  • Of the The invention is therefore based on the problem, a pressure compensation element provide that provides high protection against external influences and at the same time economical is in production.
  • The Invention solves this problem by a pressure compensation element with the features of claim 1 and by an arrangement with the features of claim 19.
  • Thereby, that this Receiving part and the impact protection element formed as a one-piece capsule could, the protection of the pressure compensation element against punches and Bumps despite Small construction significantly increased. The protection affects especially in the access of the housing occlusive state of the pressure compensation element. The capsule interior is thereby of the impact protection element facing away from the capsule with the Membrane filled.
  • Prefers while the capsule forms the sole outer shell of the pressure compensation element. This means that no further, separate elements of the pressure compensation element outside the capsule are arranged. The pressure compensation element points in particular no additional Cover on, which in turn protects the impact protection element from shocks. to Ventilation of the capsule interior and above indirectly the interior of the housing has the impact protection element in an advantageous embodiment, at least a breakthrough on.
  • In An advantageous embodiment of the invention is the impact protection element externally rounded. The groundbreaking of the capsule interior surface of the impact protection element has in particular the shape of a ball cap or a cap an oval shaped body on. The attack surface the impact protection element is thereby minimized.
  • In a particularly preferred embodiment, the pressure compensation element a labyrinth system that places the membrane in front of the capsule interior penetrating foreign bodies protects. Through the breakthrough of the impact protection element in the capsule interior invading foreign bodies, such as a wire or the fluid of a high-pressure cleaner, can no longer on a straight path and with unchecked power hit the membrane. The foreign bodies are preferred, based on their entry into the capsule interior, within the labyrinth system at least 90 degrees, better 120 degrees, even better 150 degrees and in particular distracted by at least 180 degrees. The direction of movement a foreign body penetrated into the labyrinth system becomes at least temporarily by the aforementioned angle relative to the direction of entry distracted. The distraction can also be the result of several previous Be individual distractions.
  • The invention further provides an arrangement with a pressure compensation element according to the invention and a cable gland of a housing, wherein the outer shape of the pressure compensation element is formed complementary to the inner shape of the cable gland. In this case, the pressure compensation element is preferably by means of cap nut fixed in the cable gland. The cable gland for its part preferably has a high impact and impact resistance. By accommodating the pressure compensation element in such a cable gland, the protection of the pressure compensation element is largely taken over by the cable gland. The self-protection of the pressure compensation element is limited only to the surfaces that are not enclosed by the cable gland. As a result of this embodiment, the protection of the pressure compensation element from external influences is thus also indirectly increased.
  • simultaneously can the pressure compensation elements are mass-produced in series, because the inner diameter of cable glands is normalized and only the capsule of the pressure compensation element must be adapted thereto. The housing point usually one or more holes on, for such cable glands normalized. It is therefore no longer necessary for a variety different holes in the wall of the housing respectively individually adapted in scope To provide pressure compensation elements. The manufacturing costs the pressure compensation elements can be further reduced. About that can out casing with existing cable gland cost-effective with a matching pressure compensation element be retrofitted.
  • The Pressure compensation element preferably has the outer shape of a conventional Blind stopper for the respective cable gland on. Advantageously, the pressure compensation element with the exception of the impact protection element completely from the cable gland taken, the impact protection element on the cap nut adapted outer shape having. As a result, the attack surface of the pressure compensation element opposite mechanical Actions from outside of the housing further reduced.
  • Further Details and advantages of the invention will become apparent from the dependent claims and the in the figures schematically illustrated embodiments, hereinafter to be discribed; show it:
  • 1 an inventive arrangement in a sectional view, with a pressure compensation element, inserted in a cable gland,
  • 2 the pressure compensation element 1 in an enlarged view,
  • 3 the pressure compensation element 1 in a representation illustrating the individual parts,
  • 4 an inventive pressure compensation element for screwing in a sectional view,
  • 5 another inventive pressure compensation element for screwing in a sectional view and
  • 6 the object out 5 in the plan view.
  • Hereinafter, the same or equivalent elements of the invention are uniformly provided with a reference numeral. 1 to 3 show a total of an inventive pressure compensation element 2 with a receiving part 4 in which a semipermeable membrane 6 is arranged. The pressure compensation element 2 has an impact protection element 8th on, that the receiving part 4 and the membrane 6 against mechanical influences from outside the pressure compensation element 2 protects. Here are the receiving part 4 and the impact protection element 8th as a one-piece capsule 10 formed, which is the outer shell of the pressure compensation element 2 forms.
  • The capsule 10 points in the area of the impact protection element 8th breakthroughs 12 for ventilation of the capsule interior 14 on.
  • 1 shows an arrangement according to the invention 15 with a pressure compensation element 2 in a cable gland 16 used and with a cap nut 18 is fixed. The outer shape of the pressure compensation element 2 is complementary to the inner form of the cable gland 16 educated. The impact protection element 8th is on the outside, so on the side facing away from the capsule interior, partially rounded. The rounding is modeled on the nature of a ball cap. In this case, the pressure compensation element 2 with the exception of the impact protection element 8th completely from the cable gland 16 recorded and the impact protection element 8th has one on the cap nut 18 adapted outer shape. By this configuration, the attack surface of the pressure compensation element 2 clearly limited.
  • The impact protection element 8th can, as shown, on the cap nut 18 rest and thereby slipping in the pressure compensation element 2 into the cable gland 16 prevent. In an embodiment not shown here, the impact protection element 8th but also completely in the opening of the cap nut 18 be housed. As a result, the attack surface of the pressure compensation element 2 further reduced.
  • For adjusting the pressure compensation element 2 to the cable gland 16 is the recording part 4 round cylindrical and has also one to the respective cable gland 16 adjusted length. For better fixation of the pressure compensation element 2 in the cable gland 16 has the receiving part 4 outside circumferential projections 20 at the height of a seal 22 the cable gland 16 on.
  • The pressure compensation element 2 points between the lid or impact protection element 8th and the Memnran 6 a labyrinth system 24 on, that's the membrane 6 in front of the capsule interior 14 invading foreign bodies protects. The protection refers to a protection against the breakthroughs 12 in the capsule interior 14 passing foreign bodies. The labyrinth system 24 has a first chicane 26 and another chicane 28 on. The first chicane 26 is between the impact protection element 8th and the membrane 6 arranged and protects the membrane 6 from direct exposure to the capsule interior 14 passing foreign bodies. Already by the first chicane 26 So for example, through the breakthroughs 12 foreign body entering the capsule interior is not in a straight trajectory on the membrane 6 meet, but gets distracted. For this purpose fills the first chicane 25 the cross section of the capsule interior 14 below the impact protection element 8th full surface except one or more channels 30 , The channels 30 are outside of straight lines between the breakthroughs 12 the impact protection element 8th and the membrane 6 arranged. This staggered arrangement to the breakthroughs 8th or the membrane 6 prevents the previously described direct action of the capsule interior 14 passing foreign bodies on the membrane 6 ,
  • Preference is given to several channels 30 provided on the one hand by the first chicane 26 and on the other hand, from the inner wall 32 the capsule 10 be limited. In the case of a capsule 10 , their recording part 4 cylindrically shaped, has the first chicane 26 a likewise round cross section of the same diameter as the receiving part 4 and has outwardly distributed recesses as channels 30 on. By this arrangement, on the one hand, the blocking function of the first chicane 26 ensured and on the other hand, enough air can be the first chicane 26 happen.
  • Between the first chicane 26 and the impact protection element 8th is at least a first spacer 34 arranged. In the illustrated preferred embodiment, the spacer is 34 in one piece with the first chicane 26 connected. First spacer 34 and first chicane 26 form a one-piece assembly. The assembly can be manufactured and assembled inexpensively.
  • The further chicane 28 is formed so that they one at the first chicane 26 at least temporarily deflected by at least 90 degrees, but better by 115 degrees and in particular by 130 degrees. The further chicane fills the cross section of the capsule interior 14 below the first chicane 26 entire surface except one opening 36 that are outside straight lines between the output of the channels 30 and the membrane 6 is arranged.
  • The first chicane 26 points to the impact protection element 8th opposite side a circumferential first projection 38 on, whereas the other chicane 28 on the first chicane 26 facing side another advantage 40 having. Here stands the first projection 38 towards the membrane 6 over the further lead 40 out. As a result, a must enter the labyrinth system of the foreign body, the first projection 38 has passed, change its direction of movement significantly, to the other projection 30 to get past and onto the membrane 6 hold true. Between the first chicane 26 and another chicane 28 are more spacers 42 arranged. In the illustrated, preferred embodiment, the further spacers 42 as rearward extensions of the first spacers 34 educated. The first chicane 26 as well as the first spacers 34 and the other spacers 42 form a one-piece assembly with the advantages mentioned above.
  • The further chicane 26 has a revolving hold-down 44 on. The membrane 6 on the one hand by the hold-down 44 and on the other hand from a membrane carrier 46 fixed directly or indirectly. This fulfills the further chicane 28 in addition to the labyrinth function, the function of a holder for the membrane also exists in one component 6 ,
  • The first advantage 38 and the further advantage 40 are each frustoconical in the facing area. The lateral surfaces of the truncated cone are parallel to each other. This may cause the further chicane 28 be formed in a simple manner so that the opening 36 the further chicane 28 to hold down 44 extended funnel-shaped. Through this funnel-shaped extension a free membrane surface is ensured, which in an advantageous manner relative to the available cross-section of the receiving part 4 is formed large. Despite the small design of the pressure compensation element 2 This is the necessary air exchange through the membrane 6 ensured.
  • Between the hold down 44 and the membrane 6 is a sealing ring 48 made of an elastic material. This has at the same time a spring function in addition to the sealing function. This is that the membrane 6 between the hold down 44 and the membrane carrier 46 on the one hand is firmly enough clamped to slippage of the membrane 6 on the other hand, but not in relation to the membrane 6 harder materials of the blank holder 44 or the membrane carrier 46 is damaged. In addition, the spring function is to keep all loose parts inside the capsule 14 to prevent a wobble and thus an undesirable knocking against each other. A noisy rattling of the pressure compensation element 2 is thereby desirably avoided.
  • 4 and 5 each show further embodiments of a pressure compensation element according to the invention 2 , Unlike in the 1 to 3 embodiment shown have the pressure compensation elements 2 in the 4 and 5 an external thread 50 on the receiving part 4 on. With the help of external thread 50 can these pressure compensation elements 2 be screwed into holes in a housing. The fixation and sealing of the pressure compensation element 2 takes place in a conventional manner, for example by counter nuts not shown in the figures and a sealing ring.
  • The impact protection element 8th has the shape of a regular hexagon in cross-section and is adapted in size to conventional hex wrench. The pressure compensation element 2 is doing this with the help of a on impact protection element 8th engaging Allen key screwed into the housing.
  • In 5 and 6 is another embodiment of the pressure compensation element 2 shown. How out 6 this one does not show up to the capsule interior 14 continuous notch 52 on. The pressure compensation element 2 is screwed with a tool in the opening of a housing. The tool engages in the aforementioned notch 52 the impact protection element 8th one. 6 also shows the arrangement of the breakthroughs 12 the impact protection element 8th , This arrangement is maintained substantially in the embodiments described so far.
  • How out 1 to 5 seen, the capsule points 10 at the impact protection element 8th opposite side a capsule opening 54 on, through which the capsule interior 14 with the labyrinth system 24 , the sealing ring 48 , the membrane 6 and the membrane carrier 46 is fillable. These in the capsule interior 14 accommodated, loose parts ( 24 . 48 . 6 . 46 ) become one end of the impact protection element 8th from falling out of the capsule 10 prevented. The membrane carrier 46 also has a groove 56 on that to the capsule inside 32 and the capsule opening 54 is open. The groove 56 can circulating or even partially introduced on the membrane support 46 be provided. After filling the capsule interior 14 with the aforementioned loose parts ( 24 . 48 . 6 . 46 ) becomes part of the capsule 10 in the area of the capsule opening 54 by thermal deformation in the groove 56 pressed and with the membrane carrier 46 merged. The groove 56 can also be part of a separate closure element, not shown in the figures, that on the membrane support 46 is supported. The fixation of the membrane carrier 46 at the capsule 10 but can also be done by gluing, jamming, wedging or a snap closure or the like.
  • In the figures, the groove 56 just not yet with the capsule 10 welded state shown. With the help of the weld in the groove 56 are those in the capsule interior 14 accommodated loose parts ( 24 . 48 . 6 . 46 ) in a simple and cost effective manner to fall out of the capsule opening 54 prevented. In addition, when welding the capsule 10 in the groove 56 on the loose parts in the capsule interior 14 a slight pressure towards the impact protection element 8th applied. As a result, the sealing ring 48 slightly compressed and fixed in this state when cooling the weld bead. In the welded state of the pressure compensation element 2 become the loose parts ( 24 . 48 . 6 . 46 ) in the capsule interior 14 prevented from unwanted shaking, as previously described.

Claims (23)

  1. Pressure compensation element ( 2 ) for closing an access to a separate housing, with a receiving part ( 4 ), in which a semipermeable membrane ( 6 ) is arranged, and an impact protection element ( 8th ), which the receiving part ( 4 ) and the membrane ( 6 ) protects against mechanical effects from outside, characterized in that the receiving part ( 4 ) and the impact protection element ( 8th ) as a one-piece capsule ( 10 ) are formed.
  2. Pressure compensation element ( 2 ) according to claim 1, characterized in that the capsule ( 10 ) the outer shell of the pressure compensation element ( 2 ).
  3. Pressure compensation element ( 2 ) according to one of the preceding claims, characterized in that the impact protection element ( 8th ) at least one breakthrough ( 12 ) for ventilation of the capsule interior ( 14 ) having.
  4. Pressure compensation element ( 2 ) according to one of the preceding claims, characterized in that the impact protection element ( 8th ) is at least partially rounded on the outside.
  5. Pressure compensation element ( 2 ) according to one of the preceding claims, characterized gekennzeich net, that the pressure compensation element ( 2 ) between the impact protection element ( 8th ) and the membrane ( 6 ) a labyrinth system ( 24 ), the membrane ( 6 ) in front of the capsule interior ( 14 ) invading foreign bodies.
  6. Pressure compensation element ( 2 ) according to claim 5, characterized in that the labyrinth system ( 24 ) in the capsule interior ( 14 ) penetrates foreign bodies at least temporarily by at least 90 degrees, in particular by at least 180 degrees, deflects.
  7. Pressure compensation element ( 2 ) according to claim 5 or 6, characterized in that the labyrinth system ( 24 ) at least one chicane ( 26 ) having.
  8. Pressure compensation element ( 2 ) according to claim 7, characterized in that the chicane ( 26 ) between the impact protection element ( 8th ) and the membrane ( 6 ) is arranged and the membrane ( 6 ) from direct exposure to the capsule interior ( 14 ) foreign bodies is protected.
  9. Pressure compensation element ( 2 ) according to claim 7 or 8, characterized in that the chicane ( 26 ) the cross-section of the capsule interior ( 14 ) below the impact protection element ( 8th ), except for at least one channel ( 30 ), which is outside straight lines between the apertures of the impact protection element ( 8th ) and the membrane ( 6 ) is arranged.
  10. Pressure compensation element ( 2 ) according to one of claims 7 to 9, characterized in that between the chicane ( 26 ) and the impact protection element ( 8th ) at least one spacer ( 34 ) arranged in one piece with the chicane ( 26 ) connected is.
  11. Pressure compensation element ( 2 ) according to one of claims 5 to 10, characterized by at least one further chicane ( 28 ).
  12. Pressure compensation element ( 2 ) according to claim 11, characterized in that the further chicane ( 28 ) is designed such that it at the first chicane ( 26 ) past foreign bodies at least temporarily by at least 90 degrees, in particular by at least 130 degrees distracts.
  13. Pressure compensation element ( 2 ) according to one of claims 11 or 12, characterized in that the further chicane ( 28 ) the cross-section of the capsule interior ( 14 ) below the first chicane ( 26 ) over the entire surface except at least one opening ( 36 ), which are outside straight lines between the channel ( 30 ) and the membrane ( 6 ) is arranged.
  14. Pressure compensation element ( 2 ) according to one of claims 11 to 13, characterized in that the first chicane ( 26 ) on the impact protection element ( 8th ) facing away from a circumferential first projection ( 38 ) and the further chicane ( 28 ) on the first chicane ( 26 ) facing another jump before ( 40 ), wherein the first projection ( 38 ) towards the membrane ( 6 ) over the further projection ( 40 ) and between first and further projection ( 40 ) a distance remains.
  15. Pressure compensation element ( 2 ) according to one of claims 11 to 14, characterized in that between the first chicane ( 26 ) and further chicane ( 28 ) at least one further spacer ( 42 ) arranged as a rear extension of the first spacer ( 34 ) is trained.
  16. Pressure compensation element ( 2 ) according to one of claims 11 to 15, characterized in that the further chicane ( 28 ) a circumferential hold-down ( 44 ) and the membrane ( 6 ) on the one hand by the hold-down ( 44 ) and on the other hand by a membrane carrier ( 46 ) is fixed directly or indirectly.
  17. Pressure compensation element ( 2 ) according to one of claims 11 to 16, characterized in that the opening ( 36 ) of the further chicane ( 28 ) to the hold-down ( 44 ) widened in a funnel shape.
  18. Pressure compensation element ( 2 ) according to one of claims 11 to 17, characterized in that between the hold-down ( 44 ) and the membrane ( 6 ) a sealing ring ( 48 ) is arranged from an elastic material.
  19. Arrangement ( 15 ) for liquid-tight ventilation of a housing with a cable gland, characterized by a pressure compensation element ( 2 ) according to one of claims 5 to 17, wherein the outer shape of the pressure compensation element ( 2 ) complementary to the inner shape of the cable gland ( 16 ) is trained.
  20. Arrangement ( 15 ) according to claim 19, characterized in that the pressure compensation element ( 2 ) by means of cap nut ( 18 ) in the cable gland ( 16 ) is fixable.
  21. Arrangement ( 15 ) according to claim 19 or 20, characterized in that the pressure compensation element ( 2 ) the outer shape of a blanking plug of the cable gland ( 16 ) having.
  22. Arrangement ( 15 ) according to claim 20 or 21, characterized in that the pressure compensation element ( 2 ) with the exception of the impact protection element ( 8th ) completely from the cable gland ( 16 ) and the impact protection element ( 8th ) one to the cap nut ( 18 ) has adapted outer shape.
  23. Arrangement ( 15 ) according to one of claims 19 to 22, characterized in that the receiving part ( 4 ) on the outside at least one projection ( 20 ) for better fixation of the pressure compensation element ( 2 ) in the cable gland ( 16 ) having.
DE200620020494 2006-07-11 2006-07-11 Pressure compensation element Expired - Lifetime DE202006020494U1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP06014305A EP1879438A1 (en) 2006-07-11 2006-07-11 Pressure compensation device
DE200620020494 DE202006020494U1 (en) 2006-07-11 2006-07-11 Pressure compensation element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200620020494 DE202006020494U1 (en) 2006-07-11 2006-07-11 Pressure compensation element

Publications (1)

Publication Number Publication Date
DE202006020494U1 true DE202006020494U1 (en) 2008-10-16

Family

ID=39869117

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200620020494 Expired - Lifetime DE202006020494U1 (en) 2006-07-11 2006-07-11 Pressure compensation element

Country Status (1)

Country Link
DE (1) DE202006020494U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010006041U1 (en) 2010-04-19 2010-07-22 Hidde, Axel R., Dr. Sealing ring with diaphragm valve
DE102013111992B3 (en) * 2013-10-30 2015-01-22 Günther Spelsberg GmbH & Co. KG Housing with ventilation element

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202010006041U1 (en) 2010-04-19 2010-07-22 Hidde, Axel R., Dr. Sealing ring with diaphragm valve
DE102010015610A1 (en) 2010-04-19 2011-10-20 Axel R. Hidde Sealing ring, particularly breathable semi-permeable sealing-O-ring for use with diaphragm valve for ventilation of cavities, has elastomeric layers for sealing fluids and semi-permeable gas-permeable membrane
DE102013111992B3 (en) * 2013-10-30 2015-01-22 Günther Spelsberg GmbH & Co. KG Housing with ventilation element

Similar Documents

Publication Publication Date Title
DE2922437C2 (en)
USRE42768E1 (en) Robust wrench
US7396299B2 (en) Weight adjustment member for golf club head
JP4354536B2 (en) Hydraulic device
JP4741444B2 (en) Tire valve unit
US9097353B2 (en) Ventilation device
JP2006153083A (en) Cushioning clip
EP2679515B1 (en) Venting device
EP1442227B1 (en) Shock absorber with frequency-dependent damping
USD572826S1 (en) Body wrap
JP2006513389A (en) Protective cap for closure plug in condenser collection container
US7766182B2 (en) Cap with threaded gasket vent
ES2529587T3 (en) Closure set for a container
USD572825S1 (en) Body wrap
USD487329S1 (en) Zip code cap
USD536351S1 (en) Hammermill hammer
RU2442631C2 (en) High-pressure vessel
US7159613B2 (en) Pressure limiting valve in a hydraulic machine having a pressure limiting valve
DE102008019224B4 (en) Valve arrangement for a pressurized fluid container
MY134843A (en) Fluid damper
EP2313813B1 (en) A watch comprising an outer frame and an inner frame comprising a clockwork
EP0131928B1 (en) Closure with venting valve
US20030033661A1 (en) Protective goggle
EP2116689A3 (en) Spacer profile for a spacer frame for an insulating window unit and insulating window unit
WO2005089186A3 (en) Methods for varying sealing force of seal

Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20081120

R150 Term of protection extended to 6 years

Effective date: 20090424

R157 Lapse of ip right after 6 years

Effective date: 20130201