IP Library › Granted Patent US 12,263,365
Granted Patent B2
US 12,263,365 · App. 18/619,840 · Granted Apr 1, 2025

Quint configuration fire apparatus

Inventor: Michael R. Moore (New London, WI)
Assignee: OSHKOSH CORPORATION
A62C27/00B60B35/00B60B35/004B60G11/02B60G11/10B60G11/27E06C5/04E06C5/38
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Quick Facts
Patent No.
US 12,263,365
App. No.
18/619,840
Granted
Apr 1, 2025
Kind
B2
Abstract

A quint configuration fire apparatus includes a chassis, a body assembly coupled to the chassis and having a storage area configured to receive a ground ladder and a fire hose, a pump coupled to the chassis, a water tank coupled to the chassis, a ladder assembly having a proximal end that is coupled to the chassis, a single front axle coupled to a front end of the chassis, and a single rear axle coupled to a rear end of the chassis. The center of gravity of at least one of the chassis, the body assembly, the pump, and the water tank are positioned to counterbalance a moment generated by a tip load with the ladder assembly extended to the horizontal reach of at least 90 feet.

Claims (53)

1. A quint configuration fire apparatus comprising:

a chassis defining a longitudinal axis;

a front axle;

a rear axle;

a body having storage configured to receive a ground ladder and a fire hose;

a pump;

a water tank;

a ladder assembly; and

a stability system including exactly two outriggers positioned between the front axle and the rear axle, wherein the exactly two outriggers are offset relative to one another along the longitudinal axis, wherein the exactly two outriggers are configured to protrude outward from opposing lateral sides of the chassis, and wherein the stability system engages a ground surface at no more than two contact points between the front axle and the rear axle;

wherein the combination of (a) a center of gravity of at least one of the chassis, the body, the pump, or the water tank with (b) the stability system including the exactly two outriggers positioned between the front axle and the rear axle facilitates supporting a tip load of at least 750 pounds applied to a distal end of the ladder assembly while the ladder assembly is (a) extended to a horizontal reach of at least 90 feet and (b) rotated between a plurality of operating orientations.

2. The quint configuration fire apparatus of claim 1 , wherein the rear axle is a single rear axle having a gross axle weight rating of less than or equal to 33,500 pounds.

3. The quint configuration fire apparatus of claim 1 , wherein the stability system includes at least a third stabilizer positioned outside of the front axle and the rear axle.

4. The quint configuration fire apparatus of claim 1 , wherein the plurality of operating orientations include at least (a) a forward orientation where the distal end of the ladder assembly extends forward of the body, (b) a rearward orientation where the distal end of the ladder assembly extends rearward of the body, and (c) a side orientation where the distal end of the ladder assembly extends to a side of the body.

5. A quint configuration fire apparatus comprising:

a chassis defining a longitudinal axis;

a front axle;

a single rear axle;

a body having storage configured to receive a ground ladder and a fire hose;

a pump;

a water tank;

a ladder assembly physically capable of extending to a vertical height of 95 feet; and

a stability system including:

a first stability assembly positioned between the front axle and the single rear axle, the first stability assembly consisting of:

a first outrigger configured to protrude laterally outward in a first direction perpendicular to the longitudinal axis; and

a second outrigger configured to protrude laterally outward in a second direction perpendicular to the longitudinal axis and opposite the first direction; and

a second stability assembly positioned outside of the single rear axle and the front axle;

wherein the first stability assembly engages a ground surface at no more than two contact points between the front axle and the single rear axle; and

wherein the combination of at least (a) a center of gravity of at least one of the chassis, the body, the pump, or the water tank with (b) the stability system facilitates supporting a tip load of at least 750 pounds applied to a distal end of the ladder assembly while the ladder assembly is (a) extended to a maximum permitted horizontal reach thereof and (b) rotated between each of a plurality of operating orientations.

6. The quint configuration fire apparatus of claim 5 , wherein the second stability assembly includes at least one stabilizer.

7. The quint configuration fire apparatus of claim 5 , wherein the plurality of operating orientations include at least (a) a forward orientation where the distal end of the ladder assembly extends forward of the body, (b) a rearward orientation where the distal end of the ladder assembly extends rearward of the body, and (c) a side orientation where the distal end of the ladder assembly extends to a side of the body.

8. The quint configuration fire apparatus of claim 7 , wherein the side orientation includes a lateral orientation where the ladder assembly is oriented perpendicular to the longitudinal axis of the chassis.

9. The quint configuration fire apparatus of claim 5 , wherein the single rear axle has a gross axle weight rating of less than or equal to 33,500 pounds.

10. The quint configuration fire apparatus of claim 5 , wherein the ladder assembly is physically capable of extending to a horizontal reach of 90 feet.

11. The quint configuration fire apparatus of claim 5 , wherein the maximum permitted horizontal reach is greater than 72 feet.

12. The quint configuration fire apparatus of claim 11 , wherein the maximum permitted horizontal reach is at least 90 feet.

13. The quint configuration fire apparatus of claim 5 , wherein the first outrigger and the second outrigger are offset along the longitudinal axis.

14. A quint configuration fire apparatus comprising:

a chassis defining a longitudinal axis;

a front axle;

a single rear axle;

a body having storage configured to receive a ground ladder and a fire hose;

a pump;

a water tank;

a ladder assembly physically capable of extending to a vertical height of 95 feet; and

a stability system including a stability assembly positioned between the front axle and the single rear axle, the stability assembly including:

a first outrigger configured to protrude laterally outward in a first direction substantially perpendicular to the longitudinal axis; and

a second outrigger configured to protrude laterally outward in a second direction substantially perpendicular to the longitudinal axis and opposite the first direction; and

wherein the stability assembly engages a ground surface at no more than two contact points between the front axle and the single rear axle; and

wherein the combination of at least (a) a center of gravity of at least one of the chassis, the body, the pump, or the water tank with (b) the stability system facilitates supporting a tip load of at least 750 pounds applied to a distal end of the ladder assembly while the ladder assembly is (a) extended to a maximum horizontal reach that the ladder assembly is physically capable of achieving and (b) rotated between each of a plurality of operating orientations.

15. The quint configuration fire apparatus of claim 14 , wherein the single rear axle has a gross axle weight rating of less than or equal to 33,500 pounds.

16. The quint configuration fire apparatus of claim 14 , wherein the maximum horizontal reach is at least 90 feet.

17. The quint configuration fire apparatus of claim 14 , wherein the first outrigger and the second outrigger are offset along the longitudinal axis.

18. The quint configuration fire apparatus of claim 14 , wherein the stability assembly is a first stability assembly, and wherein the stability system includes a second stability assembly positioned outside of the front axle and the single rear axle.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 25, 2025
From: MOORE, MICHAEL R.
To: OSHKOSH CORPORATION
Reel/Frame 070322/0527 →
Continuity (8)
Continuation 18377539 · Oct 6, 2023
Continuation 17029706 · Sep 23, 2020
Continuation 16779897 · Feb 3, 2020
Continuation 15811241 · Nov 13, 2017
Continuation 15460901 · Mar 16, 2017
Continuation 15351417 · Nov 14, 2016
Continuation 14552252 · Nov 24, 2014
Related Publication 20250058159A1 · Feb 20, 2025
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