CH609759A5 - Seal at the joint of two tubular components - Google Patents
Seal at the joint of two tubular componentsInfo
- Publication number
- CH609759A5 CH609759A5 CH1434175A CH1434175A CH609759A5 CH 609759 A5 CH609759 A5 CH 609759A5 CH 1434175 A CH1434175 A CH 1434175A CH 1434175 A CH1434175 A CH 1434175A CH 609759 A5 CH609759 A5 CH 609759A5
- Authority
- CH
- Switzerland
- Prior art keywords
- seal
- flocked
- parts
- adhesive
- plastic
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
- F16J15/3284—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings characterised by their structure; Selection of materials
- F16J15/3288—Filamentary structures, e.g. brush seals
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/02—Nozzles
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/24—Hoses or pipes; Hose or pipe couplings
- A47L9/242—Hose or pipe couplings
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/02—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings
- F16L21/035—Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed around the spigot end before connection
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
- F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
- F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
- F16L27/06—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces with special sealing means between the engaging surfaces
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
- F16L27/0808—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
- F16L27/0812—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with slide bearings
- F16L27/0816—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with slide bearings having radial sealing
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
- F16L27/0849—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid being turned through an angle when passing from one joint element to another
- F16L27/0853—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid being turned through an angle when passing from one joint element to another with spherical hinge
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Vacuum Cleaner (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Plastic fibres (8), flocked onto a strip (7), of the seal form a sealing element (6). The latter is inserted in an annular groove (5). The strip (7) is preferably bonded by an adhesive layer (9) to the base of the groove (5). The fibres can also be flocked directly onto the base of the groove (13). The seal is suitable in particular for articulated joints of plastic pipes, such as, for example, at a vacuum cleaner nozzle (4). The seal also permits good tightness with relatively large production tolerances and a low-friction movement of the components. <IMAGE>
Description
**WARNUNG** Anfang DESC Feld konnte Ende CLMS uberlappen **.
PATENTANSPRÜCHE
1. Dichtung an der Verbindungsstelle von zwei rohrförmigen Bauteilen, dadurch gekennzeichnet, dass eines der beiden gegeneinander abgedichteten Teile (1, 2; 2, 4) aufgeflockte Kunststoffasern (8) aufweist.
2. Dichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass auf dem einen der beiden Teile ein Abdichtelement (6) vorgesehen ist, das einen flexiblen Träger (7) aufweist, dessen eine Seite selbstklebend bzw. mit einem Kleber (9) bestrichen ist, und auf dessen anderer Seite die Kunststoffasern (8) aufgeflockt sind.
3. Dichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass die Kunststoffasern (8) auf einer Klebemittelschicht in einer in dem einen Teil vorgesehenen Ringnut (12) aufgeflockt sind.
4. Dichtung nach Patentanspruch 2, dadurch gekennzeichnet, dass der flexible Träger (7) aus Kunststoffolie, Textilgewebe, Papier oder Gummi besteht.
5. Dichtung nach Patentanspruch 1, dadurch gekennzeichnet, dass ein Abdichtelement, das aus einem flexiblen Träger (7), welcher einseitig aufgeflockte Kunstfasern aufweist, besteht, in einer Aussparung des einen der Teile angebracht und in dieser Stellung durch die in bezug auf einander beweglich verbundenen Teile (1, 3, 4) im ineinandergeschobenen Zustand gehalten ist.
Die Erfindung bezieht sich auf eine Dichtung an der Verbindungsstelle von zwei rohrförmigen Bauteilen.
Zur Abdichtung von beweglichen Rohrverbindungen bzw.
auch für Kippgelenke werden im allgemeinen Filzringe, Filzstreifen, wahlweise auch Gummidichtungen sowie Kunststoffschläuche und Rundschnüre aus Moosgummi eingesetzt. Die Filz- und Gummidichtungen werden ein- bzw. aufgeklebt oder selbstklebend ausgeführt. Es sind auch Dichtungen bekannt, bei denen ein toleranzausgleichender Kunststoffschaum verwendet wird, der an der Oberfläche mit einer dünnen Filzschicht kaschiert ist.
Für Kunststoffteile mit grossen Toleranzen, die gegeneinander abgedichtet werden sollen - z. B. Gelenke bei Staubsaugerdüsen - sind die Massunterschiede von Filzstreifen oder Filzringen zu gross, um eine Überbrückung zu ermöglichen und damit eine gute Dichtung zu gewährleisten.
Der Erfindung liegt die Aufgabe zugrunde, eine Dichtung zu schaffen, die so flexibel aufgebaut ist, dass die Fertigungstoleranzen der zu verbindenden Teile ausgeglichen werden und trotzdem eine gute Dichtigkeit gewährleistet ist. Ausserdem soll der Kraftaufwand für die Bewegung der Dreh- oder Kippgelenke möglichst gering und über den gesamten Toleranzbereich gleichbleibend sein.
Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass einer der beiden gegeneinander abgedichteten Teile aufgeflockte Kunststoffasern aufweist. Vorzugsweise ist auf dem einen der beiden Teile ein Abdichtelement vorgesehen, das einen flexiblen Träger aufweist, dessen eine Seite selbstklebend bzw. mit einem Kleber bestrichen ist und auf dessen andere Seite Kunststoffasern aufgeflockt sind.
Nachstehend sind bevorzugte Ausführungsformen der Erfindung mit Bezug auf die Zeichnung beispielsweise näher beschrieben; es zeigen:
Fig. 1 einen Schnitt durch ein Dreh-Kipp-Gelenk einer Staubsaugerdüse, und
Fig. 2 den Querschnitt durch eine erfindungsgemässe Dichtung.
Bei dem in Fig. 1 dargestellten Dreh-Kipp-Gelenk ist eine Abdichtung zwischen dem Rohrteil 1 und dem Kippteil 2 mit dem korrespondierenden Rohrstutzen 3 einerseits sowie dem Kippteil 2 und dem Düsenkörper 4 andererseits erforderlich. Zu diesem Zweck sind im Rohrteil 1 umlaufende Nuten 5 vorgesehen, in die ein Abdichtelement 6 eingesetzt ist, welches - wie Fig. 2 zeigt - aus einem flexiblen Träger 7 besteht, auf dem in zur Abdichtung erforderlichen Höhe Kunststoffasern 8 aufgeflockt sind. Die Höhe der Kunststofffasern 8 ist derart vorgesehen, dass eine optimale Abdichtung der Teile 1 und 3 bzw. 2 und 4 unter Berücksichtigung des Toleranzbereiches gewährleistet ist, d. h. von letzterem hängt die Höhe bzw. Länge der aufgeflockten Kunststoffasern 8 ab.
Um das Abdichtelement 6 in den Nuten 5 befestigen zu können, ist die Unterseite des flexiblen Trägers 7 selbstklebend vorgesehen oder mit einem Kleber 9 beschichtet. Der Träger kann aus dünner Kunststoffolie, Textilgewebe, Papier oder Gummi bestehen.
Gegen axiale Verschiebung von Rohrteil 1 und Rohrstutzen 3 ist in an sich bekannter Weise ein Flachring 10 eingesetzt.
Das Kippteil 2 ist schwenkbar um die Achse 11 im Düsenkörper 4 angebracht, wobei in der Nut 12 ebenfalls ein Abdichtelement 13 eingeklebt ist.
Für Dichtungen, deren Form sehr kompliziert ist bzw. die Abdichtung in verschiedenen Ebenen erfolgen muss, besteht die Möglichkeit, die Kunststoffasern 8 ohne Zwischenträger aufzubringen. Dazu wird auf den Grund der Dichtnuten ein Klebemittel aufgetragen, auf dem die Kunststoffasern 8 durch direkte Beflockung haften. Man erspart dadurch insbesondere Kosten für die Werkzeuge zum Ausschneiden der Dichtung sowie auch für die Montage derselben, denn die Anbringung vorgefertigter Dichtungen ist bei komplizierter Formgebung, ganz allgemein gesehen, stets zeitraubend.
In bestimmten Fällen kann es auch vorteilhaft sein, dass die Dichtung aus einem einseitig mit Kunststoffasern beflockten flexiblen Träger besteht, der nur durch die zu verbindenden beweglichen Teile im ineinandergeschobenen Zustand in einer vorgesehenen Aussparung gehalten ist.
Als weitere Vorteile der erfindungsgemässen Dichtung ergeben sich eine geringere Betätigungskraft der Gelenke gegenüber den bekannten Filzdichtungen sowie ein Vermeiden des Hakens oder Klemmens.
** WARNING ** Beginning of DESC field could overlap end of CLMS **.
PATENT CLAIMS
1. Seal at the junction of two tubular components, characterized in that one of the two mutually sealed parts (1, 2; 2, 4) has flocked plastic fibers (8).
2. Seal according to claim 1, characterized in that on one of the two parts a sealing element (6) is provided which has a flexible carrier (7), one side of which is self-adhesive or coated with an adhesive (9), and on the other side of which the synthetic fibers (8) are flocked.
3. Seal according to claim 1, characterized in that the plastic fibers (8) are flocked onto an adhesive layer in an annular groove (12) provided in one part.
4. Seal according to claim 2, characterized in that the flexible carrier (7) consists of plastic film, textile fabric, paper or rubber.
5. Seal according to claim 1, characterized in that a sealing element, which consists of a flexible carrier (7), which has synthetic fibers flocked on one side, is mounted in a recess of one of the parts and in this position is movable with respect to each other connected parts (1, 3, 4) is held in the nested state.
The invention relates to a seal at the junction of two tubular components.
For sealing movable pipe connections or
Felt rings, felt strips, optionally also rubber seals as well as plastic hoses and round cords made of foam rubber are generally used for tilt joints. The felt and rubber seals are glued in or glued on or made self-adhesive. There are also known seals in which a tolerance-compensating plastic foam is used, which is laminated on the surface with a thin layer of felt.
For plastic parts with large tolerances that are to be sealed against each other - e.g. B. Joints in vacuum cleaner nozzles - the differences in size of felt strips or felt rings are too large to allow bridging and thus ensure a good seal.
The invention is based on the object of creating a seal which is constructed so flexibly that the manufacturing tolerances of the parts to be connected are compensated and a good seal is nevertheless ensured. In addition, the effort required to move the swivel or tilting joints should be as low as possible and constant over the entire tolerance range.
This object is achieved according to the invention in that one of the two parts sealed against one another has flocked plastic fibers. A sealing element is preferably provided on one of the two parts, which has a flexible carrier, one side of which is self-adhesive or coated with an adhesive and on the other side of which plastic fibers are flocked.
Preferred embodiments of the invention are described in more detail below with reference to the drawing, for example; show it:
Fig. 1 is a section through a turn-tilt joint of a vacuum cleaner nozzle, and
2 shows the cross section through a seal according to the invention.
In the tilt and turn joint shown in Fig. 1, a seal between the pipe part 1 and the tilting part 2 with the corresponding pipe socket 3 on the one hand and the tilting part 2 and the nozzle body 4 on the other hand is required. For this purpose, circumferential grooves 5 are provided in the pipe part 1, into which a sealing element 6 is inserted, which - as FIG. 2 shows - consists of a flexible carrier 7 on which plastic fibers 8 are flocked at the height required for sealing. The height of the plastic fibers 8 is provided in such a way that an optimal sealing of the parts 1 and 3 or 2 and 4 is ensured, taking into account the tolerance range, i. H. the height or length of the flocked synthetic fibers 8 depends on the latter.
In order to be able to fasten the sealing element 6 in the grooves 5, the underside of the flexible carrier 7 is provided in a self-adhesive manner or coated with an adhesive 9. The carrier can consist of thin plastic film, textile fabric, paper or rubber.
A flat ring 10 is used in a manner known per se to prevent axial displacement of pipe part 1 and pipe socket 3.
The tilting part 2 is mounted pivotably about the axis 11 in the nozzle body 4, a sealing element 13 likewise being glued into the groove 12.
For seals whose shape is very complicated or the sealing has to take place in different planes, there is the possibility of applying the plastic fibers 8 without intermediate carriers. For this purpose, an adhesive is applied to the bottom of the sealing grooves, to which the plastic fibers 8 adhere by direct flocking. In particular, this saves costs for the tools for cutting out the seal as well as for the assembly of the same, because the application of prefabricated seals is always time-consuming in the case of complicated shapes, generally seen.
In certain cases it can also be advantageous for the seal to consist of a flexible carrier flocked on one side with synthetic fibers, which is only held in a recess provided by the movable parts to be connected when pushed into one another.
Further advantages of the seal according to the invention result in a lower actuation force of the joints compared with the known felt seals and avoidance of hooking or jamming.
Claims (1)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7512905A NL7512905A (en) | 1975-11-04 | 1975-11-04 | SEALING ELEMENT. |
DE19752549488 DE2549488A1 (en) | 1975-11-04 | 1975-11-05 | SEALING ELEMENT |
FR7534378A FR2330926A1 (en) | 1975-11-04 | 1975-11-05 | WATERPROOFING ELEMENTS |
CH1434175A CH609759A5 (en) | 1975-11-04 | 1975-11-06 | Seal at the joint of two tubular components |
GB47148/75A GB1506610A (en) | 1975-11-04 | 1975-11-15 | Sealing elements |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7512905A NL7512905A (en) | 1975-11-04 | 1975-11-04 | SEALING ELEMENT. |
DE19752549488 DE2549488A1 (en) | 1975-11-04 | 1975-11-05 | SEALING ELEMENT |
FR7534378A FR2330926A1 (en) | 1975-11-04 | 1975-11-05 | WATERPROOFING ELEMENTS |
CH1434175A CH609759A5 (en) | 1975-11-04 | 1975-11-06 | Seal at the joint of two tubular components |
GB47148/75A GB1506610A (en) | 1975-11-04 | 1975-11-15 | Sealing elements |
Publications (1)
Publication Number | Publication Date |
---|---|
CH609759A5 true CH609759A5 (en) | 1979-03-15 |
Family
ID=27509500
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1434175A CH609759A5 (en) | 1975-11-04 | 1975-11-06 | Seal at the joint of two tubular components |
Country Status (5)
Country | Link |
---|---|
CH (1) | CH609759A5 (en) |
DE (1) | DE2549488A1 (en) |
FR (1) | FR2330926A1 (en) |
GB (1) | GB1506610A (en) |
NL (1) | NL7512905A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0199322A1 (en) * | 1985-04-20 | 1986-10-29 | Mtu Motoren- Und Turbinen-Union MàNchen Gmbh | Brush seal |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT343427B (en) * | 1976-01-16 | 1978-05-26 | Bauer Roehren Pumpen | PIPE COUPLING AND METHOD OF APPLYING SUCH TO THIN-WALLED PIPES |
FR2455448A1 (en) * | 1979-05-04 | 1980-11-28 | Wessel Hans | Full width suction nozzle for industrial cleaner - has inserted sleeve with nylon bearing for manipulator rotary hinge |
DE3023076C2 (en) * | 1980-06-20 | 1983-08-18 | Axel 7000 Stuttgart Trotz | Vacuum cleaner nozzle |
DE3206464A1 (en) * | 1982-02-23 | 1983-09-01 | Düpro AG, 8590 Romanshorn | CLEANER |
US4984330A (en) * | 1986-12-08 | 1991-01-15 | Shop-Vac Corporation | Nozzle assembly for a vacuum device |
GB2198333B (en) * | 1986-12-08 | 1991-02-13 | Shop Vac Corp | Nozzle assembly for a vacuum device |
CH686354A5 (en) * | 1991-07-01 | 1996-03-15 | Peters W Maschf | Sealing device for a pressurization vessel in a rotary machine. |
DE4443603A1 (en) * | 1994-12-07 | 1996-06-13 | Steinzeugwerk Ponholz Gmbh & C | Joint connection for pipes, especially ceramic chimney pipes |
US5630590A (en) * | 1996-03-26 | 1997-05-20 | United Technologies Corporation | Method and apparatus for improving the airsealing effectiveness in a turbine engine |
IT1315385B1 (en) * | 2000-02-01 | 2003-02-10 | T P A Impex Spa | STEERING GROUP PARTICULARLY FOR HOUSEHOLD AND / OR INDUSTRIAL CLEANING MACHINES. |
IT201700110492A1 (en) * | 2017-10-03 | 2019-04-03 | Airbox Srl | Friction system for swiveling extensions of suction arms |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE949535C (en) * | 1951-03-16 | 1956-09-20 | Hoover Ltd | Seal between two overlapping surfaces |
SE361349B (en) * | 1972-03-17 | 1973-10-29 | Skf Co |
-
1975
- 1975-11-04 NL NL7512905A patent/NL7512905A/en not_active Application Discontinuation
- 1975-11-05 FR FR7534378A patent/FR2330926A1/en not_active Withdrawn
- 1975-11-05 DE DE19752549488 patent/DE2549488A1/en not_active Withdrawn
- 1975-11-06 CH CH1434175A patent/CH609759A5/en not_active IP Right Cessation
- 1975-11-15 GB GB47148/75A patent/GB1506610A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0199322A1 (en) * | 1985-04-20 | 1986-10-29 | Mtu Motoren- Und Turbinen-Union MàNchen Gmbh | Brush seal |
Also Published As
Publication number | Publication date |
---|---|
FR2330926A1 (en) | 1977-06-03 |
DE2549488A1 (en) | 1977-05-12 |
GB1506610A (en) | 1978-04-05 |
NL7512905A (en) | 1977-05-06 |
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