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US 11,141,845 B2Granted
Combustion-powered tool with sleeve-retaining lockout device
AssigneeIllinois Tool Works Inc.
InventorsWalter Taylor, Julius Schwartzenberger
Life of this patent
Estimating the term…
Abstract
The present disclosure provides various embodiments of a combustion-powered-fastener-driving tool that include a lockout device to ensure the tool's valve sleeve doesn't move to an unsealed position and the tool's combustion chamber remains sealed until the piston returns to the pre-firing position. The lockout device is engageable with a lockout device engaging member operably connected to the tool's trigger, which gives the operator direct control over locking the valve sleeve in the unsealed position.
Claims14
A combustion-powered-fastener-driving tool comprising:
- a housing;
- a valve sleeve at least partially within the housing and movable relative to the housing from an unsealed position to a sealed position and back to the unsealed position;
- a trigger supported by the housing and movable relative to the housing from an extended position to a retracted position and back to the extended position;
- a first biasing member that biases the trigger to the extended position;
- a guide housing connected to the housing, the guide housing including a plurality of interior surfaces that define a guide housing bore;
- a retainer pin supported within at least a portion of the guide housing bore and movable relative to the guide housing from a retracted position to an engaged position and back to the retracted position;
- a second biasing member disposed within the guide housing bore and engaged with the retainer pin and one of the plurality of interior surfaces to bias the retainer pin to the retracted position;
- a retainer pin receiver;
- and
- a retainer pin contact member positioned relative to the retainer pin and operably connected to the trigger such that, when the valve sleeve is in the sealed position and the trigger moves from the extended position to the retracted position, the retainer pin contact member engages the retainer pin and moves the retainer pin from the retracted position to the engaged position such that a part of the retainer pin is received by the retainer pin receiver and prevents the valve sleeve from moving from the sealed position back to the unsealed position, and wherein the retainer pin contact member is positioned relative to the retainer pin and operatively connected to the trigger such that when the valve sleeve is in the unsealed position the trigger cannot move from the extended position to the retracted position.
7 more elements
A combustion-powered-fastener-driving tool comprising:
- a valve sleeve movable from an unsealed position to a sealed position and back to the unsealed position;
- a trigger movable from an extended position to a retracted position and back to the extended position;
- a first biasing member that biases the trigger to the extended position;
- a guide housing connected to a tool housing, the guide housing including a plurality of interior surfaces that define a guide housing bore;
- a retainer pin supported within at least a portion of the guide housing bore and movable relative to the guide housing from a retracted position to an engaged position and back to the retracted position;
- a second biasing member disposed within the guide housing bore and engaged with the retainer pin and one of the plurality of interior surfaces to bias the retainer pin to the retracted position;
- a retainer pin receiver;
- and
- a retainer pin contact member operably connected to the trigger such that when the valve sleeve is in the unsealed position the trigger cannot move from the extended position to the retracted position,
- wherein in a pre-firing configuration, the valve sleeve is in the unsealed position, the trigger is in the extended position, and the retainer pin is the retracted position,
- wherein in a firing position, the valve sleeve is in the sealed position, the trigger is in the retracted position, and the retainer pin is in the engaged position such that part of the retainer pin is received by the retainer pin receiver and prevents the valve sleeve from moving from the sealed position to the unsealed position.
8 more elements
Dependencies are inferred from the claim text.