Aspirator nozzle for blow guns or the like

Claim 2

An aspirator nozzle comprising, said nozzle having a forward end, and a rearward end adapted to be secured to the discharge end of an air gun body, said nozzle having an air passageway formed therein extending therethrough from its rearward end to its forward end defining an inlet opening and a discharge opening, said nozzle having an aspirator passageway means formed therein between the rearward and forward ends thereof which communicates with said air passageway and which provides communication between said air passageway and the atmosphere, said aspirator passageway communicating with said air passageway at the point of greatest air velocity.

Claim 3

The nozzle of claim 1 wherein the diameter of said air passageway rearwardly of said aspirator passageway is equal to the diameter of said air passageway forwardly of said aspirator passageway.

Claim 4

An aspirator nozzle comprising, said nozzle having a forward end, and a rearward end adapted to be secured to the discharge end of an air gun body, said nozzle having an air passageway formed therein extending therethrough from its rearward end to its forward end defining an inlet opening and A discharge opening, said nozzle having an aspirator passageway means formed therein between the rearward and forward ends thereof which communicates with said air passageway and which provides communication between said air passageway and the atmosphere, said aspirator passageway having a diameter greater than the diameter of said air passageway.

Claim 5

An aspirator nozzle comprising, said nozzle having a forward end, and a rearward end adapted to be secured to the discharge end of an air gun body, said nozzle having an air passageway formed therein extending therethrough from its rearward end to its forward end defining an inlet opening and A discharge opening, said nozzle having an aspirator passageway means formed therein between the rearward and forward ends thereof which communicates with said air passageway and which provides communication between said air passageway and the atmosphere, said aspirator passageway having a diameter greater than the diameter of said air passageway.

Claim 6

In combination, a blow gun body having first and second ends with an inlet opening at said first end and a discharge opening at said second end, said inlet opening being in communication with a source of air under pressure, said gun body having a valve chamber formed therein between said first and second ends, said gun body having a first air passageway means extending between said inlet opening and said valve chamber, said gun body having a second air passageway means extending between said discharge opening and said valve chamber, a manually operable valve means in said valve chamber for permitting the selective flow of air from said first air passageway means to said second air passageway means, and an aspirator nozzle operatively secured to said gun body at said second end, said nozzle having an inlet opening in communication with said second air passageway means, said nozzle having an air discharge opening, said nozzle having a first elongated bore extending therethrough between its inlet and discharge openings whereby air under pressure will normally be discharged from said discharge opening when said valve means is opened, said nozzle having an aspirator passageway means formed therein between said inlet and outlet openings which communicates with said first bore and the atmosphere, said aspirator passageway means being transversely disposed with respect to said first bore, said aspirator passageway means comprises a single elongated bore extending completely through said nozzle, the diameter of said single elongated bore having a diameter greater than the diameter of said first elongated bore.

Claim 7

In combination, a blow gun body having first and second ends with an inlet opening at said first end and a discharge opening at said second end, said inlet opening being in communication with a source of air under pressure, said gun body having a valve chamber formed therein between said first and second ends, said gun body having a first air passageway means extending between said inlet opening and said valve chamber, said gun body having a second air passageway means extending between said discharge opening and said valve chamber, a manually operable valve means in said valve chamber for permitting the selective flow of air from said first air passageway means to said second air passageway means, and an aspirator nozzle operatively secured to said gun body at said second end, said nozzle having an inlet opening in communication with said second air passageway means, said nozzle having an air discharge opening, said nozzle having a first elongated bore extending therethrough between its inlet and discharge openings whereby air under pressure will normally be discharged from said discharge opening when said valve means is opened, said nozzle having an aspirator passageway means formed therein between said inlet and outlet openings which communicates with said first bore and the atmosphere, said aspirator passageway means being transversely disposed with respect to said first bore, said aspirator passageway means comprises a single elongated bore extending completely through said nozzle, the diameter of said single elongated bore having a diameter greater than the diameter of said first elongated bore.

Claim 8

In combination, a blow gun body having first and second ends with an inlet opening at said first end and a discharge opening at said second end, said inlet opening being in communication with a source of air under pressure, said gun body having a valve chamber formed therein between said first and second ends, said gun body having a first air passageway means extending between said inlet opening and said valve chamber, said gun body having a second air passageway means extending between said discharge opening and said valve chamber, a manually operable valve means in said valve chamber for permitting the selective flow of air from said first air passageway means to said second air passageway means, an aspirator nozzle operatively secured to said gun body at said second end, said nozzle having an inlet opening in communication with said second air passageway means, said nozzle having an air discharge opening, said nozzle having a first elongated bore extending therethrough between its inlet and discharge openings whereby air under pressure will normally be discharged from said discharge opening when said valve means is opened, said nozzle having an aspirator passageway means formed therein between said inlet and outlet openings which communicates with said first bore and the atmosphere, said aspirator passageway means being transversely disposed with respect to said first bore, said aspirator passageway means comprises a single elongated bore extending completely through said nozzle, said nozzle having a hexagonal portion and a reduced diameter threaded portion extending therefrom, said single elongated bore being positioned at the juncture of said hexagonal portion and said threaded portion.

Claim 9

In combination, a blow gun body having first and second ends with an inlet opening at said first end and a discharge opening at said second end, said inlet opening being in communication with a source of air under pressure, said gun body having a valve chamber formed therein between said first and second ends, said gun body having a first air passageway means extending between said inlet opening and said valve chamber, said gun body having a second air passageway means extending between said discharge opening and said valve chamber, a manually operable valve means in said valve chamber for permitting the selective flow of air from said first air passageway means to said second air passageway means, an aspirator nozzle operatively secured to said gun body at said second end, said nozzle having an inlet opening in communication with said second air passageway means, said nozzle having an air discharge opening, said nozzle having a first elongated bore extending therethrough between its inlet and discharge openings whereby air under pressure will normally be discharged from said discharge opening when said valve means is opened, said nozzle having an aspirator passageway means formed therein between said inlet and outlet openings which communicates with said first bore and the atmosphere, said aspirator passageway means being transversely disposed with respect to said first bore, said aspirator passageway means comprises a single elongated bore extending completely through said nozzle, said nozzle having a hexagonal portion and a reduced diameter threaded portion extending therefrom, said single elongated bore being positioned at the juncture of said hexagonal portion and said threaded portion.

Claim 10

In combination, a blow gun body having first and second ends with an inlet opening at said first end and a discharge opening at said second end, said inlet opening being in communication with a source of air under pressure, said gun body having a valve Chamber formed therein between said first and second ends, said gun body having a first air passageway means extending between said inlet opening and said valve chamber, said gun body having a second air passageway means extending between said discharge opening and said valve chamber, a manually operable valve means in said valve chamber for permitting the selective flow of air from said first air passageway means to said second air passageway means, and an aspirator nozzle operatively secured to said gun body at said second end, said nozzle having an inlet opening in communication with said second air passageway means, said nozzle having an air discharge opening, said nozzle having a first elongated bore extending therethrough between its inlet and discharge openings whereby air under pressure will normally be discharged from said discharge opening when said valve means is opened, said nozzle having an aspirator passageway means formed therein between said inlet and outlet openings which communicates with said first bore and the atmosphere, said aspirator passageway means being transversely disposed with respect to said first bore, said gun having a counterbore and slot means formed at its second end.

Claim 11

In combination, a blow gun body having first and second ends with an inlet opening at said first end and a discharge opening at said second end, said inlet opening being in communication with a source of air under pressure, said gun body having a valve Chamber formed therein between said first and second ends, said gun body having a first air passageway means extending between said inlet opening and said valve chamber, said gun body having a second air passageway means extending between said discharge opening and said valve chamber, a manually operable valve means in said valve chamber for permitting the selective flow of air from said first air passageway means to said second air passageway means, and an aspirator nozzle operatively secured to said gun body at said second end, said nozzle having an inlet opening in communication with said second air passageway means, said nozzle having an air discharge opening, said nozzle having a first elongated bore extending therethrough between its inlet and discharge openings whereby air under pressure will normally be discharged from said discharge opening when said valve means is opened, said nozzle having an aspirator passageway means formed therein between said inlet and outlet openings which communicates with said first bore and the atmosphere, said aspirator passageway means being transversely disposed with respect to said first bore, said gun having a counterbore and slot means formed at its second end.

Claim 12

In combination, a blow gun body having first and second ends with an inlet opening at said first end and a discharge opening at said second end, said inlet opening being in communication with a source of air under pressure, said gun body having a valve chamber formed therein between said first and second ends, said gun body having a first air passageway means extending between said inlet opening and said valve chamber, said gun body having a second air passageway means extending between said discharge opening and said valve chamber, a manually operable valve means in said valve chamber for permitting the selective flow of air from said first air passageway means to said second air passageway means, and an aspirator nozzle operatively secured to said gun body at said second end, said nozzle having an inlet opening in communication with said second air passageway means, said nozzle having an air discharge opening, said nozzle having a first elongated bore extending therethrough between its inlet and discharge openings whereby air under pressure will normally be discharged from said discharge opening when said valve means is opened, said nozzle having an aspirator passageway means formed therein between said inlet and outlet openings which communicates with said first bore and the atmosphere, said aspirator passageway means being transversely disposed with respect to said first bore, said aspirator passageway means comprising a single elongated bore extending completely through said nozzle, said valve means comprising a poppet valve, said second air passageway having a diameter substantially greater than said first elongated bore in said nozzle, and a restrictor means in said second air passageway, said air restrictor means having an air passageway formed therein extending therethrough which has a diameter substantially smaller than the diameter of said second air passageway.

Claim 13

In combination, a blow gun body having first and second ends with an inlet opening at said first end and a discharge opening at said second end, said inlet opening being in communication with a source of air under pressure, said gun body having a valve chamber formed therein between said first and second ends, said gun body having a first air passageway means extending between said inlet opening and said valve chamber, said gun body having a second air passageway means extending between said discharge opening and said valve chamber, a manually operable valve means in said valve chamber for permitting the selective flow of air from said first air passageway means to said second air passageway means, and an aspirator nozzle operatively secured to said gun body at said second end, said nozzle having an inlet opening in communication with said second air passageway means, said nozzle having an air discharge opening, said nozzle having a first elongated bore extending therethrough between its inlet and discharge openings whereby air under pressure will normally be discharged from said discharge opening when said valve means is opened, said nozzle having an aspirator passageway means formed therein between said inlet and outlet openings which communicates with said first bore and the atmosphere, said aspirator passageway means being transversely disposed with respect to said first bore, said aspirator passageway means comprising a single elongated bore extending completely through said nozzle, said valve means comprising a poppet valve, said second air passageway having a diameter substantially greater than said first elongated bore in said nozzle, and a restrictor means in said second air passageway, said air restrictor means having an air passageway formed therein extending therethrough which has a diameter substantially smaller than the diameter of said second air passageway.

Claim 14

The combination of claim 7 wherein said air restrictor means is removably mounted in said second air passageway.

Claim 15

In combination, a blow gun body having first and second ends with an inlet opening at said first end and a discharge opening at said second end, said inlet opening being in communication with a source of air under pressure, said gun body having a valve chamber formed therein between said first and second ends, said gun body having a first air passageway means extending between said inlet opening and said valve chamber, said gun body having a second air passageway means extending between said discharge opening and said valve chamber, a manually operable valve means in said valve chamber for permitting the selective flow of air from said first air passageway means to said second air passageway means, And an aspirator nozzle operatively secured to said gun body at said second end, said nozzle having an inlet opening in communication with said second air passageway means, said nozzle having an air discharge opening, said nozzle having a first elongated bore extending therethrough between its inlet and discharge openings whereby air under pressure will normally be discharged from said discharge opening when said valve means is opened, said nozzle having an aspirator passageway means formed therein between said inlet and outlet openings which communicates with said first bore and the atmosphere, said aspirator passageway means being transversely disposed with respect to said first bore, said aspirator passageway means comprising a single elongated bore extending completely through said nozzle, said valve means comprising a pressure regulated valve means, said pressure regulator valve means comprising a rolling O-ring type pressure regulator.

Claim 16

In combination, a blow gun body having first and second ends with an inlet opening at said first end and a discharge opening at said second end, said inlet opening being in communication with a source of air under pressure, said gun body having a valve chamber formed therein between said first and second ends, said gun body having a first air passageway means extending between said inlet opening and said valve chamber, said gun body having a second air passageway means extending between said discharge opening and said valve chamber, a manually operable valve means in said valve chamber for permitting the selective flow of air from said first air passageway means to said second air passageway means, And an aspirator nozzle operatively secured to said gun body at said second end, said nozzle having an inlet opening in communication with said second air passageway means, said nozzle having an air discharge opening, said nozzle having a first elongated bore extending therethrough between its inlet and discharge openings whereby air under pressure will normally be discharged from said discharge opening when said valve means is opened, said nozzle having an aspirator passageway means formed therein between said inlet and outlet openings which communicates with said first bore and the atmosphere, said aspirator passageway means being transversely disposed with respect to said first bore, said aspirator passageway means comprising a single elongated bore extending completely through said nozzle, said valve means comprising a pressure regulated valve means, said pressure regulator valve means comprising a rolling O-ring type pressure regulator.