Back to results
US 8,770,456 B2Granted
Recharge cycle function for combustion nailer
AssigneeIllinois Tool Works Inc.
InventorsLarry Moeller, Frederic Nayrac, Hanxin Zhao
Life of this patent
Estimating the term…
Abstract
A combustion nailer includes a tool housing, and a combustion engine substantially located within the housing and including a valve sleeve reciprocating relative to a cylinder head for cyclically opening and closing a combustion chamber. A control system is associated with the housing and is connected to the combustion engine for providing for a designated open time for the combustion chamber after a combustion event and before a subsequent combustion can occur.
Claims16
A combustion nailer, comprising:
- a tool housing;
- a combustion engine substantially located within said housing and including a valve sleeve reciprocating relative to a cylinder head for cyclically opening and closing a combustion chamber;
- a control system associated with said housing and connected to said combustion engine for providing for a designated open time for said combustion chamber after a combustion event and before a subsequent combustion can occur;
- and
- a lockout mechanism associated with said combustion engine for periodically retaining said valve sleeve closed, and connected to said control for remaining closed a preset period of time;
- wherein said designated open time is determined based on operational status of said combustion chamber and said lockout mechanism.
3 more elements
A combustion nailer, comprising:
- a tool housing;
- a combustion engine substantially located within said housing and including a valve sleeve reciprocating relative to a cylinder head for cyclically opening and closing a combustion chamber;
- a chamber switch associated with said combustion engine and configured for being activated by said reciprocating movement of said valve sleeve;
- a control system associated with said housing and connected to said chamber switch for providing for a designated open time for said chamber switch after a combustion event and before a subsequent combustion can occur;
- and
- a lockout mechanism associated with said combustion engine for periodically retaining said valve sleeve closed, and connected to said control system for remaining closed a preset period of time;
- wherein said combustion chamber remains open for at least a duration of said designated open time while said chamber switch is deactivated, and said lockout mechanism is released.
4 more elements
A combustion nailer, comprising:
- a tool housing;
- a combustion engine substantially located within said housing and including a valve sleeve reciprocating relative to a cylinder head for cyclically opening and closing a combustion chamber;
- a chamber switch associated with said combustion engine and configured for being activated by said reciprocating movement of said valve sleeve;
- a supplemental chamber status sensor associated with said combustion engine and disposed relative to said valve sleeve to detect open and sealed positions of said combustion chamber;
- and
- a lockout mechanism associated with said combustion engine for periodically retaining said valve sleeve closed, and connected to a control system for remaining closed a present period of time, said control system configured for providing a designated open time for said combustion chamber after combustion event and before a subsequent combustion can occur;
- wherein said designated open time is determined based on operational status of said combustion chamber, said chamber switch, and said lockout mechanism.
4 more elements
Dependencies are inferred from the claim text.