Hose For A Piston-Chamber Combination

Abstract

A piston-chamber combination comprising an elongate chamber which is bounded by an inner chamber wall, and comprising a piston in said chamber to be engagingly movable relative to said chamber wall at least between a first longitudinal position and a second longitudinal position of the chamber, said chamber having cross-sections of different cross-sectional areas and differing circumferential lengths at the first and second longitudinal positions, and at least substantially continuously different cross-sectional areas and circumferential lengths at intermediate longitudinal positions between the first and second longitudinal positions, the cross-sectional area and circumferential length at said second longitudinal position being smaller than the cross-sectional area and circumferential length at said first longitudinal position, said chamber is comprising an exit valve, which is communicating with a hose, which is communicating with a valve between the other end of said hose and an object to be inflated. This is achieved by the size of the volume of said hose between said valves is variable.

1 . A piston-chamber combination comprising an elongate chamber which is bounded by an inner chamber wall, and comprising a piston in said chamber to be engagingly movable relative to said chamber wall at least between a first position and a second position of the chamber,
 said chamber having cross sections of different cross-sectional areas and differing circumferential lengths at the first and second longitudinal positions, and at least substantially continuously different cross-sectional areas and circumferential lengths at intermediate longitudinal positions between the first and second longitudinal positions, the cross-sectional area and circumferential length at said second longitudinal position being smaller than the cross-sectional area and circumferential length at said first longitudinal position,   said chamber is comprising an exit valve, which is communicating with a hose, which is communicating with a valve between the other end of said hose and an object to be inflated, wherein the size of the volume of said hose between said valves is variable.   
     
     
         2 . A piston-chamber combination comprising an elongate chamber which is bounded by an inner chamber wall, and comprising a piston in said chamber to be engagingly movable relative to said chamber wall at least between a first longitudinal position and a second longitudinal position of the chamber, said chamber having cross-sections of different cross-sectional areas and equal circumferential lengths at the first and second longitudinal positions, and at least substantially continuously different cross-sectional areas and equal circumferential lengths at intermediate longitudinal positions between the first and second longitudinal positions, the cross-sectional area at said second longitudinal position being smaller than the cross-sectional area at said first longitudinal position,
 said chamber is comprising an exit valve, which is communicating with a hose, which is communicating with a valve between the other end of said hose and an object to be inflated, wherein the size of the volume of said hose between said valves is variable.   
     
     
         3 . The piston-chamber combination according to  claim 1 , wherein said piston is sealingly movable relative to said chamber wall. 
     
     
         4 . The piston-chamber combination according to  claim 1 , wherein said hose is expandable. 
     
     
         5 . The piston-chamber combination according to  claim 6 , wherein the expansion is in the longitudinal direction of said hose. 
     
     
         6 . The piston-chamber combination according to  claim 6 , wherein the expansion is in the transversal direction of said hose. 
     
     
         7 . The piston-chamber combination according to  claim 5 , further comprising an inflatable flexible piston, said piston is expanding when said hose is being pressurized. 
     
     
         8 . The piston-chamber combination according to  claim 5 , wherein the expansion initiates from a defined pressure inside said hole, and is imploding by a decreasing pressure rate. 
     
     
         9 . The piston-chamber combination according to  claim 5 , further comprising means for limiting the expansion, wherein said expandable expansion chamber is comprising a stopper. 
     
     
         10 . The piston-chamber combination according to  claim 1 , wherein said hose includes reinforcing, which when unpressurized closes a channel inside the hose, and when pressurized open said channel. 
     
     
         11 . The piston-chamber combination according to  claim 2 , wherein said piston is sealingly movable relative to said chamber wall. 
     
     
         12 . The piston-chamber combination according to  claim 1   claims 1 - 5 , wherein said hose is expandable. 
     
     
         13 . The piston-chamber combination according to  claim 5 , further comprising an inflatable flexible piston, said piston is expanding when said hose is being pressurized. 
     
     
         14 . The piston-chamber combination according to  claim 6 , wherein the expansion initiates from a defined pressure inside said hole, and is imploding by a decreasing pressure rate. 
     
     
         15 . The piston-chamber combination according to  claim 6 , further comprising means for limiting the expansion, wherein said expandable expansion chamber is comprising a stopper. 
     
     
         16 . The piston-chamber combination according to  claim 2 , wherein said hose includes reinforcing which when unpressurized closes a channel inside the hose, and when pressurized opens said channel.