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US 7,677,476 B2Granted
Extension pole apparatus
AssigneeCampbell Hausfeld/Scott Fetzer Company
InventorsThomas A. Burdsall, Lance S. Lindenberg
Life of this patent
Estimating the term…
Abstract
An apparatus includes an extension pole, a hydraulic valve, and a handle containing the valve. The handle has a forward end portion configured to receive the extension pole in an installed position. The handle also has a pistol grip portion inclined from the forward end portion. A valve trigger is supported on the handle. The valve trigger has a pistol grip section that extends along the pistol grip portion of the handle within reach of a user's hand grasping the pistol grip portion from behind. The valve trigger further has an upper grip section that projects forward beneath the installed position of the extension pole within reach of a user's hand grasping the extension pole from above.
Claims36
An apparatus comprising:
- an extension pole having a longitudinal axis and an axially elongated, radially enlarged hand grip portion;
- a hydraulic valve;
- a handle containing said valve, said handle having a forward end portion configured to receive said extension pole in an installed position in which said hand grip portion of said extension pole projects forward from said forward end portion of said handle, and having a pistol grip portion inclined from said forward end portion;
- and
- a valve trigger supported on said handle, said valve trigger having a pistol grip section that extends along said pistol grip portion of said handle within reach of a user's hand grasping said pistol grip portion from behind, and further having an upper grip section that projects forward directly beneath said hand grip portion of said extension pole within reach of a user's hand grasping said hand grip portion of said extension pole from directly above.
2 more elements
An apparatus comprising:
- an extension pole;
- a hydraulic valve;
- a handle containing said valve, said handle having a forward end portion configured to receive said extension pole in an installed position in which an elongated portion of said extension pole projects forward from said forward end portion of said handle, and having a pistol grip portion inclined from said forward end portion;
- and
- a valve trigger supported on said handle, said valve trigger having a pistol grip section that extends along said pistol grip portion of said handle within reach of a user's hand grasping said pistol grip portion from behind, and further having an upper grip section that projects forward directly beneath said elongated portion of said extension pole within reach of a user's hand grasping said elongated portion of said extension pole from directly above;
- said valve trigger being linked to said valve to shift said valve into an open condition when a user grasps and moves said pistol grip section of said trigger in an actuating direction rearward toward said pistol grip portion of said handle, and also to shift said valve into an open condition when a user grasps and moves said upper grip section of said trigger in an actuating direction upward toward said elongated portion of said extension pole.
3 more elements
An apparatus comprising:
- an extension pole;
- a hydraulic valve;
- a handle containing said valve, said handle having a forward end portion configured to receive said extension pole in an installed position, and having a pistol grip portion inclined from said forward end portion;
- and
- a valve trigger supported on said handle, said valve trigger having a pistol grip section that extends along and beside said pistol grip portion of said handle and further having an upper grip section that extends along and beneath said forward end portion of said handle;
- said valve trigger being linked to said valve to shift said valve into an open condition when a user grasps and moves said pistol grip section of said trigger in an actuating direction rearward toward said pistol grip portion of said handle, and also to shift said valve into an open condition when a user grasps and moves said upper grip section of said trigger in an actuating direction upward toward said forward end portion of said handle;
- said pistol grip section and said upper grip section of said valve trigger being immovable relative to each other.
4 more elements
An apparatus comprising:
- an extension pole;
- a hydraulic valve;
- a handle containing said valve, said handle having a forward end portion configured to receive said extension pole in an installed position, and having a pistol grip portion inclined from said forward end portion;
- and
- a valve trigger supported on said handle, said valve trigger having a pistol grip section that extends along and beside said pistol grip portion of said handle and further having an upper grip section that extends along and beneath said forward end portion of said handle;
- said valve trigger being linked to said valve to shift said valve into an open condition when a user grasps and moves said pistol grip section of said trigger in an actuating direction rearward toward said pistol grip portion of said handle, and also to shift said valve into an open condition when a user grasps and moves said upper grip section of said trigger in an actuating direction upward toward said forward end portion of said handle;
- said upper grip section of said valve trigger having a free end defining a terminal forward end of said valve trigger at a location forward of said handle.
4 more elements
Dependencies are inferred from the claim text.