Hose coupling for compressed air
First Claim
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1. A hose coupling comprising:
- a male member;
a female member dimensioned to receive said male member, said female member comprising;
(i) an axially displaceable slide having a spring-loaded ring, said slide movable to a first position to turn off the flow of fluid through the coupling, and movable to a second position to open the flow of fluid through the coupling, wherein said slide is movable to the second position by insertion of said male member into said female member,(ii) at least one pawl means pivotable about a pivot surface, and having first and second levers, said first lever engageable with said male member to lock said male member to said female member, and said second lever engageable with said spring-loaded ring to hold said male member in a sealing contact with said female member,(iii) at least one locking member engageable with said male member to lock said male member to said female member, and(iv) an axially displaceable sleeve enclosing said female member and movable to a first position to disengage said first lever from said male member, disengage said second lever from said spring-loaded ring, and engage said locking member with said male member, and movable to a second position to disengage said locking member from said male member.
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Abstract
The invention relates to a hose coupling for compressed air having a safety locking device. The safety locking device comprises a disconnectable male member which is caught by locking members in a female member until the overpressure in the hose and the tool has disappeared, after which the male member is released, and the occurrence of a loud bang is prevented.
85 Citations
8 Claims
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1. A hose coupling comprising:
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a male member; a female member dimensioned to receive said male member, said female member comprising; (i) an axially displaceable slide having a spring-loaded ring, said slide movable to a first position to turn off the flow of fluid through the coupling, and movable to a second position to open the flow of fluid through the coupling, wherein said slide is movable to the second position by insertion of said male member into said female member, (ii) at least one pawl means pivotable about a pivot surface, and having first and second levers, said first lever engageable with said male member to lock said male member to said female member, and said second lever engageable with said spring-loaded ring to hold said male member in a sealing contact with said female member, (iii) at least one locking member engageable with said male member to lock said male member to said female member, and (iv) an axially displaceable sleeve enclosing said female member and movable to a first position to disengage said first lever from said male member, disengage said second lever from said spring-loaded ring, and engage said locking member with said male member, and movable to a second position to disengage said locking member from said male member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification
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Current AssigneeBjorn Engdahl
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Original AssigneeBjorn Engdahl
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InventorsEngdahl, Bjorn
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Primary Examiner(s)CHAMBERS, A MICHAEL
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Application NumberUS08/416,825Time in Patent Office491 DaysField of Search285/313, 285/316, 285/317, 251/149.6US Class Current251/149.6CPC Class CodesF16L 37/0848 rocking freelyF16L 37/23 by means of ballsF16L 37/42 the valve having an axial b...
