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US4233785A Expired / Lapsed US ⏱️ 0.0 years remaining

Sandblasting apparatus

Assignee: Individual
•
Filing: 1978-10-13
•
Granted: 1980-11-18
•
Expires: 1998-10-13
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Abstract

Abstract A sandblasting apparatus with an abrasive storage tank having a pressure conduit discharging a stream of air proximate to the tank outlet to propel fluidized abrasive particulate toward a Tee whereat the fluidized particles merge with a carrier flow of air for subsequent delivery to a sandblasting gun. The gun is equipped with a nozzle having components joined by silver solder in a manner protecting the components from abrasion.

Inventors

  • 👤 Ralph N. Abell

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 10:47
CPC Classifications
B; B24; B24C; B24C5/00; B24C5/02; B24C5/04; B24C7/00; B24C7/0046

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 210 words
A sandblasting apparatus comprising, an upright abrasive storage tank having an outlet at its lower end, a vibratory conduit supported in a free standing manner by the tank upper end and extending substantially the length of the tank and in communication with a source of air pressure and having its discharge end proximate the tank outlet whereby abrasive particles within the tank are put into a fluid state by inherent operational conduit vibration prior to outward passage through said outlet, mixing means receiving a carrier flow of pressurized air and the fluidized particles discharged from the tank outlet, and a sandblasting gun in communication with said mixing means receiving the fluidized flow of abrasive particles and the carrier air flow, an air hose in communication with a source of air pressure, said gun served by said air hose and receiving a flow of pressurized air for mergence with and propelling of the fluidized abrasive, said sandblasting gun further including a nozzle having a liner, a sleeve disposed concentric about said liner, a housing disposed outwardly of said sleeve, a mass of solder disposed interiorly within said housing serving to permanently join nozzle liner, sleeve and housing and to provide a conical transition surface extending intermediate the housing and the liner.
Claim 2
Dependent Claim 210 words
A sandblasting apparatus comprising, an upright abrasive storage tank having an outlet at its lower end, a vibratory conduit supported in a free standing manner by the tank upper end and extending substantially the length of the tank and in communication with a source of air pressure and having its discharge end proximate the tank outlet whereby abrasive particles within the tank are put into a fluid state by inherent operational conduit vibration prior to outward passage through said outlet, mixing means receiving a carrier flow of pressurized air and the fluidized particles discharged from the tank outlet, and a sandblasting gun in communication with said mixing means receiving the fluidized flow of abrasive particles and the carrier air flow, an air hose in communication with a source of air pressure, said gun served by said air hose and receiving a flow of pressurized air for mergence with and propelling of the fluidized abrasive, said sandblasting gun further including a nozzle having a liner, a sleeve disposed concentric about said liner, a housing disposed outwardly of said sleeve, a mass of solder disposed interiorly within said housing serving to permanently join nozzle liner, sleeve and housing and to provide a conical transition surface extending intermediate the housing and the liner.
Claim 3
Dependent Claim 24 words
The apparatus claimed in claim 1 wherein said mass of solder overlies end surfaces of said sleeve and liner to protect same from abrasion.
Claim 4
Dependent Claim 62 words
A nozzle for a sandblasting gun comprising a housing, a sleeve partially within said housing, a liner concentric with said sleeve, a mass of solder within said housing and joining said liner and sleeve to one another and to said housing, said mass of solder having a substantially conical continuous inner surface constituting a transition surface directing particle flow into said liner.
Claim 5
Dependent Claim 62 words
A nozzle for a sandblasting gun comprising a housing, a sleeve partially within said housing, a liner concentric with said sleeve, a mass of solder within said housing and joining said liner and sleeve to one another and to said housing, said mass of solder having a substantially conical continuous inner surface constituting a transition surface directing particle flow into said liner.
Claim 6
Dependent Claim 24 words
The nozzle claimed in claim 3 wherein said mass of solder overlies end surfaces of said sleeve and liner to protect same from abrasion.
Claim 7
Dependent Claim 12 words
The nozzle claimed in claim 4 wherein the solder is silver solder.

References Cited (Backward Citations)

US1467488A Cited
US2388818A Cited
US2508766A Cited
US2587184A Cited
US3419220A Cited
US3644974A Cited
US3628627A Cited
US3750340A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-11-18 1984-05-19 1984-11-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-11-18 1988-05-19 1988-11-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-11-18 1992-05-19 1992-11-18 $7700.00 Window Closed / Lapsed

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