Coupling device for the quick-release coupling of hose-like or tubular pipes to a connecting part
First Claim
1. A coupling device for a quick-release connection of a pipe with an outlet for a pressurized medium, comprising:
- a connecting part having an outlet, a contracting surface thereon and a quadratic periphery with outwardly and circularly curved corners forming an outwardly arched enlarged area at each of said corners, said contacting surface having a recess with a base and a border surrounding said outlet, each of said corners having a threaded bore;
an end flange fixed on an end of a pipe, said end flange having an end surface and a peripheral face and being received in said recess with said end face engaging said base and with said peripheral face engageable with said border to protect against radial displacement of said end flange;
clamping screws anchored on said connecting part and directly engaging spring washers that directly engage a rear surface of said end flange opposite said end surface to press said end surface against said base, each said threaded bore receiving one of said clamping screws and positioned relative to said recess such that said peripheral face at said end flange overlaps one of a head and a nut on each of said clamping screws; and
a sealing element interposed between said end flange and said base.
1 Assignment
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Accused Products
Abstract
A coupling device provides a quick-release coupling of hose-like or tubular pipes to a connecting part at an outlet for a pressurized fluid. The connecting part has a locating face against which the end face of a flange positioned at the end of the pipe can be pressed by means of clamping screws. A sealing element is held between the flange and locating face. The clamping screws are anchored in the connecting part. The locating face of the connecting part is embodied by the base of a recess surrounding the outlet. The flange, at the end of the pipe, is housed in the recess such that the edge of the recess secures the flange against radial displacement. The clamping screws directly cooperate with the face of the flange opposite the end face.
15 Citations
28 Claims
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1. A coupling device for a quick-release connection of a pipe with an outlet for a pressurized medium, comprising:
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a connecting part having an outlet, a contracting surface thereon and a quadratic periphery with outwardly and circularly curved corners forming an outwardly arched enlarged area at each of said corners, said contacting surface having a recess with a base and a border surrounding said outlet, each of said corners having a threaded bore; an end flange fixed on an end of a pipe, said end flange having an end surface and a peripheral face and being received in said recess with said end face engaging said base and with said peripheral face engageable with said border to protect against radial displacement of said end flange; clamping screws anchored on said connecting part and directly engaging spring washers that directly engage a rear surface of said end flange opposite said end surface to press said end surface against said base, each said threaded bore receiving one of said clamping screws and positioned relative to said recess such that said peripheral face at said end flange overlaps one of a head and a nut on each of said clamping screws; and a sealing element interposed between said end flange and said base. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A coupling device for a quick-release connection of a pipe with an outlet for a pressurized medium, comprising:
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a connecting part having an outlet and a contracting surface thereon, said contacting surface having a recess with a base and a border surrounding said outlet; an end flange fixed on an end of a pipe by being mounted on a tubular adapter connected with said pipe by a tapered screw connection, said end flange having an end surface and a peripheral face and being received in said recess with said end face engaging said base and with said peripheral face engageable with said border to protect against radial displacement of said end flange; clamping screws anchored on said connecting part and directly engaging spring washers that directly engage a rear surface of said end flange opposite said end surface to press said end surface against said base; and a sealing element interposed between said end flange and said base. - View Dependent Claims (9, 10, 11, 12)
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13. A coupling device for a quick-release connection of a pipe with an outlet for a pressurized medium, comprising:
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a connecting part having an outlet and a contracting surface thereon, said contacting surface having a recess with a base and a border surrounding said outlet; an end flange fixed on an end of a pipe, said end flange having an end surface and a peripheral face and being received in said recess with said end face engaging said base and with said peripheral face engageable with said border to protect against radial displacement of said end flange; clamping screws anchored on said connecting part and directly engaging spring washers that directly engage a rear surface of said end flange opposite said end surface to press said end surface against said base; and a sealing element interposed between said end flange and said base and including an O-ring fitted in an annular groove is said end face of said end flange. - View Dependent Claims (14, 15, 16, 17)
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18. A coupling device for a quick-release connection of a pipe with an outlet for a pressurized medium, comprising:
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a connecting part having an outlet, a contracting surface thereon and a quadratic periphery with outwardly and circularly curved corners forming an outwardly arched enlarged area at each of said corners, said contacting surface having a recess with a base and a border surrounding said outlet, each of said corners having a threaded bore; an end flange fixed on an end of a pipe, said end flange having an end surface and a peripheral face and being received in said recess with said end face engaging said base and with said peripheral face engageable with said border to protect against radial displacement of said end flange; clamping screws anchored on said connecting part and cooperating with a rear surface of said end flange opposite said end surface to press said end surface against said base, each said threaded bore receiving one of said clamping screws and positioned relative to said recess such that said peripheral face at said end flange overlaps one of a head and a nut on each of said clamping screws; and a sealing element interposed between said end flange and said base. - View Dependent Claims (19, 20, 21, 22)
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23. A coupling device for a quick-release connection of a pipe with an outlet for a pressurized medium, comprising:
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a connecting part having an outlet and a contracting surface thereon, said contacting surface having a recess with a base and a border surrounding said outlet; an end flange fixed on an end of a pipe by being mounted on a tubular adapter connected with said pipe by a tapered screw connection, said end flange having an end surface and a peripheral face and being received in said recess with said end face engaging said base and with said peripheral face engageable with said border to protect against radial displacement of said end flange; clamping screws anchored on said connecting part and cooperating directly with a rear surface of said end flange opposite said end surface to press said end surface against said base; and a sealing element interposed between said end flange and said base. - View Dependent Claims (24, 25, 26, 27, 28)
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Specification