IP Library Granted Patent US 8,146,710
Granted Patent B2
US 8,146,710 · App. 12/657,703 · Granted Apr 3, 2012

Step stool latch

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Quick Facts
Patent No.
US 8,146,710
App. No.
12/657,703
Granted
Apr 3, 2012
Kind
B2
Abstract

A step stool includes a first section having at least a first step. The step stool includes a hinge bracket connected to the first section. The step stool includes a second section connected to the hinge bracket having a crossbar; and a platform having a latch that moves only in translation to lock the platform to the cross bar when the platform is in a horizontal position and prevents the first section and second section from folding when the first and second sections are in an open state. A method for establishing a step stool includes the steps of moving a latch of a platform only in translation away from a crossbar of a second section that the platform rests on in a horizontal position. There is the step of placing the second section and a first section having at least one step together into a closed position.

Claims (3)

1. A method for establishing a step stool comprising the steps of:

moving a latch of a platform of the step stool only in translation away from a crossbar of a second section that the platform rests on in a horizontal position, the platform has a slider having a handle connected to the latch which moves the latch only in translation away from the cross bar when the platform is in the horizontal position and the slider handle is moved, which frees the crossbar from the latch and allows a first section of the step stool and the second section to fold together, the platform has a front side and a back side opposing the front side and the slider handle is disposed adjacent the back side, the platform has a top and bottom and the latch is disposed on the bottom of the platform and extends from the bottom of the platform approximately at the bottom's center and in spaced relation from the backside, the platform includes a trap which traps the slider and latch in the platform, the latch extends from the trap away from the bottom of the platform and the slider extends from the trap in parallel with the bottom and through an opening in the backside, the latch has a stem that extends perpendicular away from the bottom surface of the Platform, the stem has two snap hooks that catches with the crossbar, each snap hook having and an angled surface that slides by the crossbar as the platform is moving to a horizontal position and forces the stem to slide back and clear the crossbar, a gusset is placed on the rear side of the latch to oppose the moment created by the crossbar striking at an angle, wherein the moving step includes the step of limiting movement of the slider and the latch by ribs on the bottom of the platform that stand perpendicular to the sliding latch direction, wherein the ribs and cutouts define the trap and including the step of expanding a pair of springs trapped between the ribs and recesses formed which seats the springs on the slider as the latch moves past the cross bar; and

placing the second section and the first section having at least one step together into a closed position.

Assignments (12)
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT REEL 064126, FRAME 0396 Recorded Jun 16, 2025
From: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
To: WERNER CO.
Reel/Frame 071649/0774 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT REEL 063958, FRAME 0740 Recorded Jun 16, 2025
From: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
To: WERNER CO.
Reel/Frame 071649/0699 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT REEL 064205, FRAME 0636 Recorded Jun 16, 2025
From: WILLA FINCO II SARL
To: WERNER CO.
Reel/Frame 071649/0887 →
SECURITY INTEREST Recorded Jun 27, 2023
From: WERNER CO.
To: WILLA FINCO II SARL (FORMERLY TRITON V LUXCO 95 SARL)
Reel/Frame 064205/0636 →
SECURITY INTEREST Recorded Jun 27, 2023
From: WERNER CO.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 064126/0396 →
SECURITY INTEREST Recorded Jun 12, 2023
From: WERNER CO.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS NOTES COLLATERAL AGENT
Reel/Frame 063958/0740 →
RELEASE OF SECURITY INTEREST IN PATENTS AT R/F 043328/0001 Recorded Jun 12, 2023
From: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
To: KNAACK LLC; WERNER CO.; WERNER TECHNOLOGIES, INC.
Reel/Frame 063957/0231 →
PATENT SECURITY AGREEMENT (TERM LOAN) Recorded Jul 25, 2017
From: KNAACK LLC; WERNER CO.; WERNER TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT IN RESPECT OF THE TERM LOAN CREDIT AGREEMENT
Reel/Frame 043328/0001 →
PATENT SECURITY AGREEMENT (ABL) Recorded Jul 25, 2017
From: KNAACK LLC; WERNER CO.; WERNER TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT IN RESPECT OF THE ABL CREDIT AGREEMENT
Reel/Frame 043327/0956 →
RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY COLLATERAL Recorded Jul 24, 2017
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: WERNER CO.
Reel/Frame 043318/0824 →
RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY COLLATERAL Recorded Jul 24, 2017
From: WERNER CO.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 043318/0877 →
SECURITY AGREEMENT Recorded Apr 29, 2011
From: WERNER CO.
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 026200/0981 →