Pressure sensitive fluid injector and pogo stick utilizing same

Claim 2

A FLUID INJECTOR, COMPRISING: A MOUNT HAVING A CAVITY THERETHROUGH; A FLUID CONTROL BLOCK HAVING A CHANNEL THEREIN INCLUDING A PORTION OF REDUCED DIAMETER, SAID BLOCK COVERED BY SAID MOUNT ADJACENT TO THE CAVITY AT ONE END OF SAID MOUNT; A PISTON IN THE CAVITY AT THE OTHER END OF SAID MOUNT SLIDABLE THEREIN TOWARD AND AWAY FROM SAID CONTROL BLOCK, A PORTION OF SAID PISTON EXTENDING INTO THE CHANNEL WITHIN SAID CONTROL BLOCK; SAID PISTON HAVING A CHAMBER THEREIN COMMUNICATING WITH THE CHANNEL OF SAID CONTROL BLOCK THROUGH SAID PORTION EXTENDING THEREINTO; A FIRST VALVE WITHIN THE CHANNEL OF SAID CONTROL BLOCK RESPONSIVE TO THE POSITION OF SAID PISTON, SAID VALVE COMPRISING A SPRING DISPOSED IN THE CHANNEL, SAID SPRING BEING OF RELAXED LENGTH SLIGHTLY LESS THAN THE LENGTH OF THE CHANNEL FROM SAID REDUCED DIAMETER TO SAID PORTION OF SAID PISTON EXTENDING THEREINTO WHEN SAID PISTON IS AWAY FROM SAID BLOCK, AND A BALL CARRIED BY SAID SPRING TOWARD SAID REDUCED DIAMETER, WHEREBY WHEN SAID PISTON IS MOVED TOWARD SAID BLOCK, SAID SPRING IS COMPRESSED AND SAID BALL IS MOVED INTO SAID REDUCED DIAMETER TO RESTRICT FLUID FLOW THERETHROUGH; A SECOND VALVE DISPOSED WITHIN A HOLE WITHIN A WALL OF SAID PISTON TO THE CHAMBER THEREWITHIN, RESPONSIVE TO THE PRESSURE DIFFERENTIAL ACROSS THE WALL; AND MEANS FOR BIASING SAID PISTON AWAY FROM SAID FLUID CONTROL BLOCK.

Claim 3

The injector of claim 1 wherein said second valve comprises: a shaft portion extending the hole in the wall of said piston, an enlarged portion on said shaft on a side of the wall of said piston away from the chamber therein, movable into the hole in the wall of said piston to restrict the fluid flow therethrough, and a spring acting upon said shaft and said piston to normally urge said enlarged portion of said shaft into the hole in the wall of the piston to restrict fluid flow therethrough.

Claim 4

The injector of claim 2 wherein said means for biasing said piston away from said fluid control block is a spring between said piston and said fluid control block.

Claim 5

The injector of claim 3 wherein said spring acting upon said shaft and said piston has a spring constant to urge said enlarged portion of said shaft into the hole in the wall in said piston with a force of at least equal to the force exerted upon said piston by the pressure at which injection is desired.

Claim 6

A pogo stick comprising: means for carrying a fuel; means for containing the pressure of a combustion of the fuel and applying the energy of the combustion to upward force upon the pogo stick; a fuel injector including a mount interconnecting said carrying means and said containing means, a piston slidably carried within said mount, movable by pressure variations within said containing means, said piston having a cavity therewithin for receiving the fuel, means adjacent the cavity of said piston along a path of the fuel thereto, for restricting the fuel flow thereto, said means being responsive to the position of said piston, whereby as the pressure increases in said containing means, the fuel flow is restricted, and a valve in a hole in a wall of said piston adjacent said containing means to open at a predetermined pressure, whereby fuel is injected into said containing means.

Claim 7

A pogo stick comprising: means for carrying a fuel; means for containing the pressure of a combustion of the fuel and applying the energy of the combustion to upward force upon the pogo stick; a fuel injector including a mount interconnecting said carrying means and said containing means, a piston slidably carried within said mount, movable by pressure variations within said containing means, said piston having a cavity therewithin for receiving the fuel, means adjacent the cavity of said piston along a path of the fuel thereto, for restricting the fuel flow thereto, said means being responsive to the position of said piston, whereby as the pressure increases in said containing means, the fuel flow is restricted, and a valve in a hole in a wall of said piston adjacent said containing means to open at a predetermined pressure, whereby fuel is injected into said containing means.

Claim 8

A pogo stick comprising: a hollow elongated handle for containing fuel; an injector mount affixed to said handle, having a cavity therethrough into which fuel within said handle may flow; a hollow member defining a combustion chamber affixed to said injector mount having an air intake port near the bottom thereof; a first piston and rod telescopically carried within said combustion chamber reciprocable therein; platform members affixed to and outstanding from said combustion chambEr upon which a user may stand; a fluid control block, having a channel therein carried by said mount adjacent the cavity at one end of said mount; a second piston in the cavity at the other end of said mount slidable therein toward and away from said control block, a portion of said second piston extending into the channel within said control block; said second piston having a chamber therein communicating with the channel of said control block through said portion extending thereinto; a first valve within the channel of said control block responsive to the position of said piston to control the fluid flow in the channel; a second valve disposed within a hole in a wall of said second piston to the chamber therewithin, responsive to the pressure differential across the wall; and means for biasing said piston away from said fluid control block; whereby, when the user jumps upon said platform members, said first piston and rod telescope into said combustion chamber thereby increasing the pressure therein to cause said second piston to move upwardly toward said mount and said fluid control block to be thereby injected into said compression chamber, whereupon combustion occurs forcing said piston and rod downwardly from said combustion chamber.

Claim 9

A pogo stick comprising: a hollow elongated handle for containing fuel; an injector mount affixed to said handle, having a cavity therethrough into which fuel within said handle may flow; a hollow member defining a combustion chamber affixed to said injector mount having an air intake port near the bottom thereof; a first piston and rod telescopically carried within said combustion chamber reciprocable therein; platform members affixed to and outstanding from said combustion chambEr upon which a user may stand; a fluid control block, having a channel therein carried by said mount adjacent the cavity at one end of said mount; a second piston in the cavity at the other end of said mount slidable therein toward and away from said control block, a portion of said second piston extending into the channel within said control block; said second piston having a chamber therein communicating with the channel of said control block through said portion extending thereinto; a first valve within the channel of said control block responsive to the position of said piston to control the fluid flow in the channel; a second valve disposed within a hole in a wall of said second piston to the chamber therewithin, responsive to the pressure differential across the wall; and means for biasing said piston away from said fluid control block; whereby, when the user jumps upon said platform members, said first piston and rod telescope into said combustion chamber thereby increasing the pressure therein to cause said second piston to move upwardly toward said mount and said fluid control block to be thereby injected into said compression chamber, whereupon combustion occurs forcing said piston and rod downwardly from said combustion chamber.