Autokinetic sampling nozzle

Claim 2

An autokinetic fluid sampling device, comprising in combination: duct means having an open fluid inlet at one end thereof and an open fluid outlet at the other end thereof; means connected to said duct means for effectively varying the area of the open fluid inlet thereof in predetermined inverse proportion to the velocity of the flowing fluid being sampled in automatic response to the impact of said flowing fluid thereon; and adjustable means effectively connected to said duct means adapted for timely engagement with said fluid inlet varying means in such manner as to limit the maximum area of the aforesaid open fluid inlet, said adjustable means including an elongated arm having a lower extending lip connected to the extremity thereof that is adjacent to said fluid inlet varying means, and a slotted extension connected to the extremity thereof that is opposite the one to which said lower extending lip is connected; a threaded hole located in the aforesaid duct means; and a threaded set screw extending through the slot of the slotted extension of said elongated arm and screwed to the aforesaid threaded hole, so as to firmly hold said elongated arm in a predetermined disposition with respect to said duct means and the aforesaid fluid inlet varying means.

Claim 3

The device of claim 1, wherein said means connected to said duct means for effectively varying the area of the open fluid inlet thereof in predetermined inverse proportion to the velocity of the flowing fluid being sampled in automatic response to the impact of said flowing fluid thereon comprises a resilient boot having a forward taper and a flexible open mouth at the apex thereof, the opening of which is predeterminedly inversely variable with the impact of the fluid being sampled against the outside surface of the aforesaid resilient boot.

Claim 4

The device of claim 1, wherein said means connected to said duct means for effectively varying the area of the open fluid inlet thereof in predetermined inverse proportion of the velocity of the flowing fluid being sampled in automatic response to the impact of said flowing fluid thereon comprises: a flapper valve of predetermined geometrical configuration rotatably connected to said duct means in such manner that it will be moved toward the position of effectively closing the open fluid inlet of said duct means as a consequence of the flowing fluid being sampled impacting thereon; and resilient means connected between said duct means and said flapper valve for the continuous predetermined urging thereof toward the position of effectively further opening the open fluid inlet of said duct means in opposition to the impact of the flowing fluid being sampled on said flapper valve.

Claim 5

The device of claim 3, wherein said resilient means connected between said duct means and said flapper valve for the continuous predetermined urging thereof toward the position of effectively further opening the open fluid inlet of said duct means in opposition to the impact of the flowing fluid being sampled on said flapper valve comprises a spring having a predetermined spring rate.

Claim 6

The device of claim 1, wherein said means connected to said duct means for effectively varying the area of the open fluid inlet thereof in predetermined inverse proportion of the velocity of the flowing fluid being sampled in automatic response to the impact of said flowing fluid thereon comprises: a plurality of flapper valves of predetermined geometrical configurations connected to said duct means in such manners, respectively, that they will be moved toward positions of effectively closing the open fluid inlet of said duct means as a consequence of the flowing fluid being sampled impacting thereon; and resilient means respectively connected between said duct means and said plurality of flapper valves for the continuous predetermined urging thereof toward the positions of effectively further opening the open fluid inlet of said duct means in opposition to the impact of the flowing fluid being sampled on said plurality of flapper means.

Claim 7

The device of claim 5, wherein said resilient means respectively connected between said duct means and said plurality of flapper valves for the continuous predetermined urging thereof toward the positions of effectively further opening the open fluid inlet of said duct means in opposition to the impact of the flowing fluid being sampled on said plurality of flapper valves comprises a like plurality of springs, each of which has a predetermined spring rate.

Claim 8

The invention of claim 1, further characterized by suction pump means connected to the open fluid outlet of said duct means.

Claim 9

The invention of claim 7, further characterized by a utilization apparatus connected to the output of said suction pump means.

Claim 10

The invention of claim 1, further characterized by a rearwardly and upwardly extending vane contiguously disposed with respect to said fluid inlet area limiting means for amplifying the fluid dynamic loading of the aforesaid fluid inlet varying means.

Claim 11

An autokinetic nozzle adapted for sampling at a constant rate from within a pipe a flowing fluid containing solid particulate matter, the velocities of which vary from time to time, comprising in combination: duct means having an open fluid inlet at one end thereof and an open fluid outlet at the other end thereof; suction pump means connected to the open fluid outlet of said duct means for effecting a substantially constant fluid pressure thereat which is less than the fluid pressure within said duct means; valve means effectively connected to the open inlet end of said duct means for effectively varying the size of said open fluid inlet in such manner automatically in response to the composite of the forces applied thereto by the fluid flowing within the aforesaid pipe as to close said autokinetic nozzle to sample said flowing fluid at a substantially constant rate that is equal to the suction rate of the aforesaid suction pump means, regardless of the fluctuations of the velocities of the fluid flowing within said pipe.

Claim 12

An autokinetic nozzle adapted for sampling at a constant rate from within a pipe a flowing fluid containing solid particulate matter, the velocities of which vary from time to time, comprising in combination: duct means having an open fluid inlet at one end thereof and an open fluid outlet at the other end thereof; suction pump means connected to the open fluid outlet of said duct means for effecting a substantially constant fluid pressure thereat which is less than the fluid pressure within said duct means; valve means effectively connected to the open inlet end of said duct means for effectively varying the size of said open fluid inlet in such manner automatically in response to the composite of the forces applied thereto by the fluid flowing within the aforesaid pipe as to close said autokinetic nozzle to sample said flowing fluid at a substantially constant rate that is equal to the suction rate of the aforesaid suction pump means, regardless of the fluctuations of the velocities of the fluid flowing within said pipe.

Claim 13

The invention of claim 10, further characterized by a utilization apparatus connected to the output of said suction pump.

Claim 14

The invention of claim 10, further characterized by means effectively connected to said duct means for amplifying the response of the aforesaid valve means to the composite fluid forces applied thereto.

Claim 15

The autokinetic system for sampling flowing substances from within a container, wherein the velocities thereof fluctuate from time to time, comprising in combination: a container within which substances flow; an open-ended duct having an affluent end into which a sample of the aforesaid substances flow and an effluent end out of which said sample of substances flow, said open-ended duct being mounted within said container in such manner as to partially extend through the wall thereof; first valve means effectively connected to the affluent end of said open-ended duct means for effectively varying the area of the open affluent end thereof in a predetermined manner and in predetermined response to forces applied thereto by the aforesaid flowing substances; second valve means effectively connected to the affluent end of said open-ended duct means for effectively varying the area of the open affluent end thereof not varied by said first valve means in a predetermined manner and in predetermined response to forces applied thereto by the aforesaid flowing substances; first resilient means interconnecting said duct and said first valve means for the urging of said first valve means toward an open position in accordance with a first predetermined resiliency rate; second resilient means interconnecting said duct and said second valve means for the urging of said second valve means toward an open position in accordance with a second predetermined resiliency rate; first stop means adjustably connected to said duct and adapted to timely contact said first valve means in such manner as to limit the maximum open position thereof; second stop means adjustably connected to said duct and adapted to timely contact said second valve means in such manner as to limit the maximum open position thereof; and means effectively connected to the effluent end of the aforesaid open-ended duct for creating a pressure thereat which is less than the pressure within the aforesaid container.

Claim 16

The autokinetic system for sampling flowing substances from within a container, wherein the velocities thereof fluctuate from time to time, comprising in combination: a container within which substances flow; an open-ended duct having an affluent end into which a sample of the aforesaid substances flow and an effluent end out of which said sample of substances flow, said open-ended duct being mounted within said container in such manner as to partially extend through the wall thereof; first valve means effectively connected to the affluent end of said open-ended duct means for effectively varying the area of the open affluent end thereof in a predetermined manner and in predetermined response to forces applied thereto by the aforesaid flowing substances; second valve means effectively connected to the affluent end of said open-ended duct means for effectively varying the area of the open affluent end thereof not varied by said first valve means in a predetermined manner and in predetermined response to forces applied thereto by the aforesaid flowing substances; first resilient means interconnecting said duct and said first valve means for the urging of said first valve means toward an open position in accordance with a first predetermined resiliency rate; second resilient means interconnecting said duct and said second valve means for the urging of said second valve means toward an open position in accordance with a second predetermined resiliency rate; first stop means adjustably connected to said duct and adapted to timely contact said first valve means in such manner as to limit the maximum open position thereof; second stop means adjustably connected to said duct and adapted to timely contact said second valve means in such manner as to limit the maximum open position thereof; and means effectively connected to the effluent end of the aforesaid open-ended duct for creating a pressure thereat which is less than the pressure within the aforesaid container.

Claim 17

The invention of claim 13, further characterized by first and second means respectively connected to said first and second stop means for effectively magnifying the forces applied to said first and second valve means by the aforesaid flowing substances.

Claim 18

The device of claim 14, wherein each of said first and second means respectively connected to said first and second stop means for effectively magnifying the forces applied to said first and second valve means by the aforesaid flowing substances comprises a vane extending outwardly from said duct at a predetermined angle.