1460894676-0b5e263d-3b7e-4556-807d-776f9dc047ff

1. A turbine ventilator comprising:
a housing including a compartment formed therein and including a hub provided in said housing,
a tube including a lower segment secured to said hub of said housing, and including a seat disposed on an upper portion of said tube,
an electric generator disposed on said seat, and including a rotor rotatably disposed in said generator, and including an extension secured to said rotor and extended out of said generator,
a carrier rotatably attached to said tube, and
a plurality of blades each including a lower portion secured to said carrier, and each including an upper portion secured to said extension of said rotor for rotating said extension of said rotor relative to said generator in order to generate an electric energy.
2. The turbine ventilator as claimed in claim 1, wherein a panel is secured to said extension of said rotor, and a cover is secured to said upper portions of said blades and secured to said panel for securing said blades to said extension of said rotor.
3. The turbine ventilator as claimed in claim 1, wherein said upper portion of said tube includes an outer diameter greater than that of said tube for forming an annular shoulder in said tube and for engaging with said carrier.
4. The turbine ventilator as claimed in claim 1, wherein said lower segment of said tube includes an outer diameter smaller than that of said tube for forming an annular shoulder in said tube and for engaging with said hub of said housing.
5. The turbine ventilator as claimed in claim 1 further comprising a support including a chamber formed therein, and including an upper portion, and said housing is engaged into said upper portion of said support and secured to said support.
6. The turbine ventilator as claimed in claim 1, wherein said housing includes at least one bar coupled between said housing and said hub of said housing.
7. The turbine ventilator as claimed in claim 1, wherein said carrier includes a hub having a bore formed in said hub of said carrier for rotatably receiving said tube and for rotatably attaching said carrier to said tube.
8. The turbine ventilator as claimed in claim 7, wherein said carrier includes a peripheral wall, and includes at least one beam coupled between said peripheral wall and said hub of said carrier.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A method of using a shears, the shears comprising:
a body including a fixed jaw;
a first movable jaw that pivots with respect to the fixed jaw;
a hydraulic cylinder for actuating the first movable jaw to pivot;
a main shaft for pivotally mounting the first movable jaw to the body;
a rotational coupler that couples the main shaft for rotation with the first movable jaw without axially fixing the main shaft to the first movable jaw; and
a removable stop assembly constructed and arranged to limit axial movement between the main shaft and the first movable jaw,
the method comprising:
detaching the first movable jaw from the shears; and
replacing the first movable jaw with a second movable jaw, the second movable jaw having at least one different physical characteristic from the first movable jaw
wherein before said detaching of the first movable jaw from the shears, the rotational coupler prevents the main shaft from rotating relative to the first movable jaw.
2. A shears, comprising:
a body including a fixed jaw, wherein the body includes a pair of spaced apart bosses;
a movable jaw that pivots with respect to the fixed jaw;
a hydraulic cylinder for actuating the movable jaw to pivot;
a main shaft for pivotally mounting the movable jaw to the body, wherein the spaced apart bosses support the main shaft;
a rotational coupler that couples the main shaft for rotation with the movable jaw without axially fixing the main shaft to the movable jaw;
a removable stop assembly constructed and arranged to limit axial movement between the main shaft and the movable jaw; and
a pair of main bearings, each for supporting one end of the main shaft and including a third rotation stop,
wherein each of the pair of bosses includes a fourth rotation stop, such that the third rotation stop and the fourth rotation stop prevent relative rotation between the each of main bearings and its respective boss, without axially fixing the main bearing to the boss.
3. A shears, comprising:
a body including a fixed jaw;
a movable jaw that pivots with respect to the fixed jaw;
a hydraulic cylinder for actuating the movable jaw to pivot;
a main shaft for pivotally mounting the movable jaw to the body;
a rotational coupler that couples the main shaft for rotation with the movable jaw without axially fixing the main shaft to the movable jaw; and
a removable stop assembly constructed and arranged to limit axial movement between the main shaft and the movable jaw
wherein the rotational coupler prevents the main shaft from rotating relative to the movable jaw.
4. The shears according to claim 1, wherein the removable, stop assembly comprises a pair of main bearings for rotationally supporting the main shaft.
5. The shears according to claim 1, wherein the removable stop assembly comprises a pair of end caps.
6. The shears according to claim 5, further comprising a tie rod installed through the main shaft and threaded at each end to the end caps.
7. The shears according to claim 1, wherein the removable stop assembly comprises a pair of outer thrust washers.
8. The shears according to claim 1, wherein the rotational coupler comprises a first rotation stop on the movable jaw and a second rotation stop on the main shaft.
9. The shears according to claim 8, wherein the removable stop assembly comprises an inner thrust washer installed on the main shaft to abut the movable jaw opposite on the side opposite to the first rotation stop.
10. The shears according to claim 3, wherein the main shaft is provided with a radially extending shoulder.
11. The shears according to claim 10, wherein:
the rotational coupler comprises a first rotation stop on the movable jaw and a second rotation stop on the main shaft; and
the first rotation stop is provided on the shoulder.
12. The shears according to claim 11, wherein the moveable jaw includes a bore and a recessed portion surrounding the bore, wherein the second rotation stop is provided on the recessed portion.
13. The shears according to claim 3, wherein the body includes a pair of spaced apart bosses for supporting the main shaft.
14. The shears according to claim 3, further comprising a cylindrical sleeve installed between the outer surface of the main shaft and a bore of the upper jaw.
15. The shears according to claim 13, wherein a main bearing is attached to each of the pair of bosses by at least one fastener.
16. The shears according to claim 15, wherein the end caps are attached to the main shaft, such that the end caps pivot with the main shaft.
17. The shears according to claim 15, further comprising a pair of outer thrust washers, wherein each end cap is attached to an end of the main shaft through one of the outer thrust washers.
18. The shears according to claim 3, further comprising a second movable jaw that may be attached to the shears, in place of the movable jaw, wherein the movable jaw and second movable jaw comprise at least one different physical characteristic from each other.
19. The shears of claim 3, wherein distal portions of the main shaft are supported by the fixed jaw, and a central portion of the main shaft supports the movable jaw.