Sealing appliance

Abstract

An appliance for sealing elastic hoses with a sleeve, which is plastically deformable and slipped onto the hose, has two jaws which are movable towards and away from each other. One jaw has two straight bars which project towards the other jaw and extend transversely of the sleeve to make two transverse indentations in the sleeve and the hose when the jaws are moving towards each other. The same jaw has a cutting edge which projects towards the other jaw and is directed transversely of the sleeve, the cutting edge making a substantially transverse cutting indication in the sleeve and the hose when the jaws are moving towards each other.

What is claimed is: 
     
       1. An appliance for mechanical sealing of hollow hoses ( 2 ) of elastic material with a sealing means ( 3 ) which is made of plastically deformable material and which is applied to the hose, said appliance ( 1 ) having two jaws ( 8 ,  9 ), at least one of the jaws is movable towards and away from the other jaw and the jaws crimp the sealing means ( 3 ) against the hose ( 2 ) to seal the same, characterised in that the sealing means ( 3 ) has the form of a sleeve ( 4 ) which is slipped on to the hose ( 2 ), that at least one of the jaws ( 8  or  9 ) has at least one straight bar ( 11 ) having a projecting end which projects towards the other jaw ( 9  or  8 ) and which, when at least one the jaws is moving towards the other jaw, makes an indentation ( 12 ) in the sleeve ( 4 ) and the hose ( 2 ) to reinforce the sealing thereof as well as the fixing of the sleeve on the hose, that at least one of the jaws ( 8  or  9 ) has a cutting means ( 13 ), which projects towards the other jaw ( 9  or  8 ) and which when at least one of the jaws ( 8 ,  9 ) is moving towards the other jaw, makes a cutting indication ( 14 ) in the sleeve ( 4 ) and the hose ( 2 ) to allow a sealing cutting of the hose ( 2 ), and that the cutting means ( 13 ) has the form of a substantially straight cutting edge ( 15 ) which projects to a greater extent than the projecting end of said at least one bar ( 11 ). 
     
     
       2. An appliance according to  claim 1 , characterized in that there are at least two straight bars ( 11 ) having projecting ends which are arranged substantially in parallel at a distance from each other and extend substantially transversely of the longitudinal direction of the sleeve ( 4 ) to make a corresponding number of substantially transverse indentations ( 12 ) in the sleeve ( 4 ) and the hose ( 2 ), and that the cutting means ( 13 ) extends substantially transversely of the longitudinal direction of the sleeve ( 4 ) and makes a substantially transverse cutting indication ( 14 ) in the sleeve ( 4 ) and the hose ( 2 ). 
     
     
       3. An appliance according to  claim 2 , characterized in that the cutting means ( 13 ) has the form of a substantially straight cutting edge ( 15 ), which projects to a greater extent than the projecting ends of the at least two straight bars ( 11 ). 
     
     
       4. An appliance according to  claim 3 , characterized in that
 the cutting edge ( 15 ) cooperates with an opposite recess ( 16 ) in the other jaw ( 9  or  8 ) and is situated substantially halfway between two adjacent bars ( 11 );   at least one of the jaws ( 8  or  9 ) has a fixture ( 17 ) to position the sleeve ( 4 ) and the hose ( 2 ) between the jaws ( 8 ,  9 );   the bars ( 11 ) and the cutting edge ( 15 ) are situated on one jaw ( 8 ) and that the fixture ( 17 ) is situated on the other jaw ( 9 ), the bars, the cutting edge and the fixture being mounted on or being make in one piece with the associated jaw,   the jaw ( 8 ) provided with the bars ( 11 ) an the cutting edge ( 15 ) has the form of a die, which is fixedly mounted in the appliance ( 1 ) and the jaw ( 9 ) provided with the fixture ( 17 ) has the form of a punch, which is movably arranged in the appliance ( 1 ) and actuatable by a driving means ( 10 ); and   the appliance has the form of a pair of tongs ( 5 ) which is hand operated and has one fixed and one movable leg ( 6 ,  7 ), the movable leg ( 7 ) actuating the jaw ( 9 ) forming the punch by means of a gear drive.   
     
     
       5. An appliance according to  claim 3 , characterized in that
 the cutting edge ( 15 ) cooperates with an opposite recess ( 16 ) in the other jaw ( 8  or  9 );   the cutting edge ( 15 ) is situated on one side of the bars ( 11 );   at least one of the jaws ( 8  or  9 ) has a fixture ( 17 ) to position the sleeve ( 4 ) and the hose ( 2 ) between the jaws ( 8 ,  9 );   the bars ( 11 ) and the cutting edge ( 15 ) are situated on one jaw ( 8 ) and the fixture ( 17 ) is situated on the other jaw ( 9 ), the bars, the cutting edge and the fixture being mounted on or being made in one piece with the associated jaw;   the jaw ( 8 ) provided with the bars ( 11 ) and the cutting edge ( 15 ) has the form of a die, which is fixedly mounted in the appliance ( 1 ) and the jaw ( 9 ) provided with the fixture ( 17 ) has the form of a punch, which is movably arranged in the appliance ( 1 ) and actuatable by driving means ( 10 ); and   the appliance has the form of a pair of tongs ( 5 ) which is hand operated and has one fixed and one movable leg ( 6 ,  7 ), the movable leg ( 7 ) actuating the jaw ( 9 ) forming the punch by means of a gear device.   
     
     
       6. An appliance according to  claim 2 , characterized in that at least one of the jaws ( 8  or  9 ) has a fixture ( 17 ) to position the sleeve ( 4 ) and the hose ( 2 ) between the jaws ( 8 ,  9 ). 
     
     
       7. An appliance according to  claim 2 , characterized in that the at least two bars ( 11 ) and the cutting edge ( 15 ) are situated on one jaw ( 8 ), and that the fixture ( 17 ) is situated on the other jaw ( 9 ), at the least one bar, the cutting edge and the fixture being mounted on or being make in one piece with the associated jaw. 
     
     
       8. An appliance according to  claim 1 , characterized in that the cutting edge ( 15 ) co-operates with an opposite recess ( 16 ) in the other jaw ( 9  or  8 ). 
     
     
       9. An appliance according to  claim 8 , characterized in that the cutting edge ( 15 ) is situated substantially half-way between two adjacent bars ( 11 ). 
     
     
       10. An appliance according to  claim 8 , characterized in that the cutting edge ( 15 ) is situated on one side of the at least one bar ( 11 ). 
     
     
       11. An appliance according to  claim 8 , characterized in that at least one of the jaws ( 8  or  9 ) has a fixture ( 17 ) to position the sleeve ( 4 ) and the hose ( 2 ) between the jaws ( 8 ,  9 ). 
     
     
       12. An appliance according to  claim 1 , characterized in that the cutting edge ( 15 ) is situated substantially half-way between two adjacent bars ( 11 ). 
     
     
       13. An appliance according to  claim 1 , characterized in that the cutting edge ( 15 ) is situated on one side of the at least one bar ( 11 ). 
     
     
       14. An appliance according to  claim 1 , characterized in that at least one of the jaws ( 8  or  9 ) has a fixture ( 17 ) to position the sleeve ( 4 ) and the hose ( 2 ) between the jaws ( 8 ,  9 ). 
     
     
       15. An appliance according to  claim 14 , characterized in that the at least one bar ( 11 ) and the cutting edge ( 15 ) are situated on one jaw ( 8 ), and that the fixture ( 17 ) is situated on the other jaw ( 9 ), the at least one bar, the cutting edge and the fixture being mounted on or being made in one piece with the associated jaw. 
     
     
       16. An appliance according to  claim 15 , characterized in that the jaw ( 8 ) provided with the at least one bar ( 11 ) and the cutting edge ( 15 ) has the form of a die, which is fixedly mounted in the appliance ( 1 ), and that the jaw ( 9 ) provided with the fixture ( 17 ) has the form of a punch, which is movably arranged in the appliance ( 1 ) and actuatable by a driving means ( 10 ). 
     
     
       17. An appliance according to  claim 16 , characterized in that it has the form of a pair of tongs ( 5 ) which is hand-operated and has one fixed and one movable leg ( 6 ,  7 ), the movable leg ( 7 ) actuating the jaw ( 9 ) forming the punch by means of a gear device, preferably an eccentric mechanism or the like, forming the driving means ( 10 ). 
     
     
       18. An appliance for mechanical sealing of hollow hoses ( 2 ) of elastic material with a sealing means ( 3 ) which is made of plastically deformable material and which is applied to the hose, said appliance ( 1 ) having two jaws ( 8 ,  9 ), both of the jaws are movable towards and away from each other and which, when moving towards each other, crimp the sealing means ( 3 ) against the hose ( 2 ) to seal the same, characterised in that the sealing means ( 3 ) has the form of a sleeve ( 4 ) which is slipped on to the hose ( 2 ), that at least one of the jaws ( 8  or  9 ) has at least one straight bar ( 11 ) having a projecting end which projects towards the other jaw ( 9  or  8 ) and which, when the jaws ( 8 ,  9 ) are moving towards each other, makes an indentation ( 12 ) in the sleeve ( 4 ) and the hose ( 2 ) to reinforce the sealing thereof as well as the fixing of the sleeve on the hose, that at least one of the jaws ( 8  or  9 ) and which, when the jaws ( 8 ,  9 ) are moving towards each other, makes a cutting indication ( 14 ) in the sleeve ( 4 ) and the hose ( 2 ) to allow a sealing cutting of the hose ( 2 ), and that the cutting means ( 13 ) has the form of a substantially straight cutting edge ( 15 ), which projects to a greater extent than the projecting end of said at least one bar ( 11 ). 
     
     
       19. A hand-held sealing appliance, comprising:
 jaws mounted to receive a hose and operable for relative movement;   an indentation projection, supported by at least one of the jaws, that provides an indentation in the hose; and   at least one cutting indication projection, supported by at least one of the jaws, that makes a cutting indication in the hose at a location longitudinally displaced from the indentation, the cutting indication extending farther into the hose than the indentation.   
     
     
       20. The appliance of claim 19, wherein the indentation projection and the cutting indication projection are fixed relative to each other on the same jaw. 
     
     
       21. The appliance of claim 19, further comprising a second indentation projection on one of the jaws to provide a second indentation in the hose, the at least one cutting indication projection being positioned longitudinally between the indentation projections. 
     
     
       22. The appliance of claim 19, wherein the hose is separated along the cutting indication. 
     
     
       23. The appliance of claim 19, further comprising a sealing element of plastically deformable material positioned about the hose at the indentation projection and at the at least one cutting indication projection. 
     
     
       24. The appliance of claim 19, further comprising a plastically deformable sleeve about the hose at the indentation projection and at the at least one cutting indication projection. 
     
     
       25. The appliance of claim 24, wherein the plastically deformable sleeve is metal. 
     
     
       26. The appliance of claim 19, wherein the jaws are manually operable. 
     
     
       27. The appliance of claim 19, further comprising a fixture to position the hose between the jaws. 
     
     
       28. The appliance of claim 19, wherein one of the jaws is fixed in the appliance. 
     
     
       29. The appliance of claim 19, wherein the indentation projection and one of the at least one cutting indication projection are supported by the jaw. 
     
     
       30. The appliance of claim 19, wherein the cutting indication projection cooperates with an opposite recess in the jaw opposite the cutting indication projection. 
     
     
       31. A method of sealing and allowing separation of a hose, comprising:
 providing a hand-held appliance having jaws, and indentation projection extending from one of the jaws and a cutting indication projection extending from one of the jaws;   positioning the hose between the jaws of the hand-held appliance; and   causing relative movement between the jaws, the projection forming an indentation in the hose and the cutting indication projection forming a cutting indication in the hose at a location longitudinally displaced from the indentation, the cutting indication extending farther into the hose than the indentation.   
     
     
       32. The method of claim 31, wherein the indentation projection and the cutting indication projection are fixed relative to each other on the same jaw. 
     
     
       33. The method of claim 31, wherein a second indentation projection on one of the jaws forms a second indentation in the hose, the cutting indication being positioned longitudinally between the indentations. 
     
     
       34. The method of claim 31, wherein the hose is separated along the cutting indication. 
     
     
       35. The method of claim 31, further comprising positioning a sealing element of plastically deformable material about the hose at the indentation projection and at the cutting indication projection. 
     
     
       36. The method of claim 31, further comprising positioning a plastically deformable sleeve about the hose at the projection and at the cutting indication projection. 
     
     
       37. The method of claim 31, wherein the jaws are operated manually. 
     
     
       38. The method of claim 31, wherein one of the jaws is fixed in the appliance. 
     
     
       39. The method of claim 31, wherein the indentation and the cutting indication are made on the same side of the hose. 
     
     
       40. A hand-held sealing appliance, comprising:
 jaws mounted to receive a hose and operable for relative movement;   indentation means for forming an indentation, supported by at least one of the jaws, that provides an indentation in the hose; and   cutting means for forming a cutting indication, supported by at least one of the jaws, that makes a cutting indication in the hose at a location longitudinally displaced from the indentation, the cutting means extending farther into the hose than the indentation.   
     
     
       41. A hand-held sealing appliance, comprising:
 jaws mounted to receive a segment of a hollow hose of elastic material and operable for relative movement, the hose segment being surrounded by a sealing device;   a fixture configured to position the sealing device and the hose between the jaws; and   at least one cutting indication projection, supported by at least one of the jaws, that makes a cutting indication in the hose.   
     
     
       42. The appliance of claim 41, wherein the fixture fixes and supports the hose and the sealing device at least one of laterally, horizontally, and vertically. 
     
     
       43. The appliance of claim 42, wherein the fixture fixes and supports the hose and the sealing device at least two of laterally, horizontally, and vertically. 
     
     
       44. The appliance of claim 42, wherein the fixture fixes and supports the hose and the sealing device laterally, horizontally, and vertically. 
     
     
       45. The appliance of claim 41, wherein the fixture at least partially encloses the sealing device. 
     
     
       46. The appliance of claim 41, which achieves a contamination-free sealing and cutting of the hose.