← Back to Patent Explorer
US4219084A Expired / Lapsed US ⏱️ 0.0 years remaining

Fire extinguishing apparatus having a slidable mass for a penetrator nozzle

Assignee: National Aeronautics and Space Administration
•
Filing: 1978-04-19
•
Granted: 1980-08-26
•
Expires: 1998-04-19
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A fire extinguishing apparatus delivering an extinguishing agent through a barrier surrounding a structure into the interior thereof. The apparatus includes an elongated tubular nozzle body which has a pointed penetrating head carried on one end of the tubular body. A source of extinguishing agent is coupled to the opposite end of the tubular body and is fed therethrough and passes through passages adjacent the head for delivering the extinguishing agent to the interior of the structure. A slidable mass is carried on the tubular body on a remote end of the tubular body from the penetrating head. By manipulating the slidable mass and bringing such in contact with an abutment the force imparted to the tubular body causes the head to penetrate the structure.

Inventors

  • 👤 with respect to an invention of Frosch Robert A. Administrator of the National Aeronautics and Space Administration
  • 👤 Norris C. Gray
  • 👤 Robert M. Senseny
  • 👤 Philip N. Bolton

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 20:57
CPC Classifications
A; A62; A62C; A62C31/00; A62C31/02; A62C31/22

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 274 words
A fire extinguishing apparatus for delivering an extinguishing agent from a remote source through a barrier surrounding a structure into the interior thereof comprising: (a) a single elongated tubular nozzle body; (b) a pointed penetrating head carried on one end of said tubular nozzle body; (c) passages extending through said tubular nozzle body adjacent said head communicating with the interior of said tubular nozzle body; (d) a hose for supplying said extinguishing agent to the other end of said tubular nozzle body; (e) a coupling for connecting said hose to said other end of said tubular nozzle body; (f) an abutment carried on the exterior of said tubular nozzle body adjacent the central portion of said tubular nozzle body; (g) a manually movable slidable elongated tubular mass having an axial bore extending therethrough of a diameter slightly larger than the diameter of said tubular body concentrically carried on said tubular nozzle body between said abutment and said other end; and (h) a separate handle attached to said tubular nozzle body formed of "U" shaped members extending radially from said body, said handle being positioned on the opposite side of said abutment from said slidable mass whereby said fire extinquishing apparatus can be supported by said handle with one hand while the other hand of an operator can be used to manipulate said slidable mass, whereby by moving said slidable mass along said tubular nozzle body while maintaining said penetrating head in contact with said barrier the axial force imparted to said penetrating head upon said mass striking said abutment causes said head to penetrate said barrier for delivering said extinguishing agent into said structure.
Claim 2
Dependent Claim 274 words
A fire extinguishing apparatus for delivering an extinguishing agent from a remote source through a barrier surrounding a structure into the interior thereof comprising: (a) a single elongated tubular nozzle body; (b) a pointed penetrating head carried on one end of said tubular nozzle body; (c) passages extending through said tubular nozzle body adjacent said head communicating with the interior of said tubular nozzle body; (d) a hose for supplying said extinguishing agent to the other end of said tubular nozzle body; (e) a coupling for connecting said hose to said other end of said tubular nozzle body; (f) an abutment carried on the exterior of said tubular nozzle body adjacent the central portion of said tubular nozzle body; (g) a manually movable slidable elongated tubular mass having an axial bore extending therethrough of a diameter slightly larger than the diameter of said tubular body concentrically carried on said tubular nozzle body between said abutment and said other end; and (h) a separate handle attached to said tubular nozzle body formed of "U" shaped members extending radially from said body, said handle being positioned on the opposite side of said abutment from said slidable mass whereby said fire extinquishing apparatus can be supported by said handle with one hand while the other hand of an operator can be used to manipulate said slidable mass, whereby by moving said slidable mass along said tubular nozzle body while maintaining said penetrating head in contact with said barrier the axial force imparted to said penetrating head upon said mass striking said abutment causes said head to penetrate said barrier for delivering said extinguishing agent into said structure.

References Cited (Backward Citations)

US2235915A Cited
US2548621A Cited
US2756829A Cited
US2857005A Cited
US2993650A Cited
US3381763A Cited
US4106701A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-08-26 1984-02-25 1984-08-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-08-26 1988-02-25 1988-08-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-08-26 1992-02-25 1992-08-26 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag