초록 ▼

Supplemental walk along control for walkie/rider pallet trucks is provided by supplemental jog switches and coast release switches provided adjacent to the base of load carrying forks. The supplemental jog switches are enabled during coasting operation so that operators can advance to the base of th

Supplemental walk along control for walkie/rider pallet trucks is provided by supplemental jog switches and coast release switches provided adjacent to the base of load carrying forks. The supplemental jog switches are enabled during coasting operation so that operators can advance to the base of the forks to accelerate the trucks between closely spaced picks located along substantially straight portions of pick routes. For application of the trucks' brakes, the operators activate the coast release switches to release the coast mode and enable deadman brake mechanisms to brake the trucks. A steering direction detector is provided to determine the direction of the steered wheel so that if the steered wheel is not directed substantially straight ahead, then operation of the truck from the supplemental jog switches is disabled.

대표청구항 ▼

Supplemental walk along control for walkie/rider pallet trucks is provided by supplemental jog switches and coast release switches provided adjacent to the base of load carrying forks. The supplemental jog switches are enabled during coasting operation so that operators can advance to the base of th

Supplemental walk along control for walkie/rider pallet trucks is provided by supplemental jog switches and coast release switches provided adjacent to the base of load carrying forks. The supplemental jog switches are enabled during coasting operation so that operators can advance to the base of the forks to accelerate the trucks between closely spaced picks located along substantially straight portions of pick routes. For application of the trucks' brakes, the operators activate the coast release switches to release the coast mode and enable deadman brake mechanisms to brake the trucks. A steering direction detector is provided to determine the direction of the steered wheel so that if the steered wheel is not directed substantially straight ahead, then operation of the truck from the supplemental jog switches is disabled. ent for a tool comprising: a gear case cover with a rear portion, a middle portion, and a front portion; a collar rotatably mounted over said middle portion of said gear case cover; a cap member mounted on said front portion of said gear case cover forward of said collar; a spindle extending from said front portion of said gear case cover and extending through a forward end of said cap member; a side handle mounted to an outer surface of said cap member forward of said collar; and a chuck mounted to said spindle forward of said cap member. 7. The side handle arrangement for a tool according to claim 6, wherein said rear portion of said gear case cover is adapted to be mounted to a drill housing. 8. The side handle arrangement for a tool according to claim 6, wherein said cap member is secured to said gear case cover by screws. 9. The side handle arrangement for a tool according to claim 6, wherein said collar is adapted to vary a torque setting of the tool by rotation of said collar. 10. A drill driver comprising: a housing; a gear case cover with a rear portion, a middle portion, and a front portion, the rear portion mounted to said housing; a torque adjustment collar rotatably mounted around said middle portion of said gear case cover; a spindle extending from said front portion of said gear case cover; a cap member mounted on said front portion of said gear case cover, said spindle extending through a forward end of said cap member; a chuck mounted to said spindle; and a side handle mounted to said cap member forward of said rotary collar. 11. The drill driver according to claim 10, wherein said side handle includes an annular mounting portion for connecting said side handle to an outer surface of said cap member. 12. The drill driver according to claim 11, wherein said annular mounting portion allows said side handle to be rotated 360° around said outer surface of said cap member. 13. The drill driver according to claim 10, wherein said torque adjustment collar is rotatable to control a torque setting of the drill driver. 14. The drill driver according to claim 10, wherein said cap member is secured to said gear case cover by screws. erforating assembly comprises at least one member which slides along an inner diameter a casing wall with at least one explosive charge therein. 15. A method of plugging a wellbore, comprising: running an apparatus into the wellbore on a tubular string, the apparatus including: a cement retainer disposed on the tubular string; and a radially expandable perforating assembly disposed below the cement retainer; setting the cement retainer to seal an annular area between the cement retainer and a casing wall therebetween; causing the perforating assembly to discharge and forming perforations in the casing wall; and injecting cement through the tubular string and into a formation adjacent the perforations. 16. The method of claim 15, further comprising: applying a pre-determined pressure to an isolated area of the wellbore below the cement retainer to cause the perforating assembly to discharge. 17. The method of claim 16, further comprising: removing the tubular string from the apparatus; placing a plug of cement on top of the cement retainer. 18. The method of claim 17, further comprising disposing a whipstock above the plug. 19. The method of claim 15, wherein the perforations are formed on an inner tubular and the cement is injected through the perforations and into an annular area between the inner tubular and an outer tubular. 20. The method of claim 15, further comprising setting a bridge plug in the wellbore prior to running the apparatus into the wellbore. 21. The method of claim 15, wherein setting the cement retainer comprises: rotating a setting tool connected to the cement retainer; and causing a radially expandable element around the cement retainer to expand. 22. An apparatus for use in plugging a wellbore, comprising: means for lowering a cement retainer and at least one radially expandable perforating assembly into the wellbore; means for setting the cement retainer against a casing; and means for discharging the perforating assembly. 23. The apparatus of claim 22, wherein the means for discharging the perforating assembly comprises at least one firing head. 24. The apparatus of claim 22, further comprising means for injecting cement through at least one perforation. 25. A method of plugging a wellbore, comprising: placing an apparatus on a tubular string, the apparatus comprising: a cement retainer; and a radially expandable perforating assembly disposed below the cement retainer; setting a standoff distance from the perforating assembly to a casing wall therearound; running the apparatus into the wellbore on the tubular string; setting the cement retainer to seal an annular area between the cement retainer and the casing wall; causing the perforating assembly to discharge, thereby forming perforations in the casing wall; and injecting cement through the tubular string and into a formation adjacent to the perforations. 26. An apparatus for use in plugging a wellbore, comprising: means for setting a parameter under which at least one radially expanded perforating assembly discharges within a wellbore; means for lowering a cement retainer and the perforating assembly into the wellbore; means for setting the cement retainer against a casing; and means for discharging the perforating assembly. 27. The apparatus of claim 26, further comprising means for setting the perforating assembly against the casing while lowering the cement retainer and the perforating assembly into the wellbore.