1. A hitch assembly comprising:
a longitudinally extending first coupling element;
a second coupling element configured to be latched to the first coupling element;
a rod member having a length disposed longitudinally, a first end and a second end, the first end being connected to the first coupling element;
an actuator with a longitudinally movable output member arranged to move between a retracted and an extended position, the output member being connected to the second end of the rod member via a pivot element defining a vertical pivot axis; and
a longitudinally extending guide element arranged for selectively simultaneously embracing the pivot element and at least a part of the length of the rod member so as to prevent pivoting of said rod member about said vertical axis;
wherein the pivot element and the part of the length of the rod member are embraced by the guide element when the actuator is in the retracted positions and the pivot element and rod member are free of the guide element when the actuator is in the extended position,
such that the guide element guides the rod member longitudinally when the actuator moves the first coupling element towards the second coupling element and such that the pivot element allows a pivot movement of the first coupling element with respect to the actuator about the vertical pivot axis only when the actuator is in the extended position.
2. A hitch assembly according to claim 1, wherein the output member of the actuator is connected to a support member, which in turn is, connected directly to said pivot element and is at all times embraced and supported by the guide element.
3. A hitch assembly according to claim 1, wherein the actuator comprises a housing being in lengthwise alignment with, and connected to, the guide element.
4. A hitch assembly according to claim 3, wherein the actuator comprises a hydraulic cylinder having a piston rod within the housing, the piston rod being connected to the pivot element.
5. A hitch assembly according to claim 2, wherein the guide element comprises a hollow tube and said rod member and support member each being shaped complementary to and received within, said guide element when said actuator is retracted, such that the guide element guides the rod member in the direction when the actuator moves the first coupling element towards the second coupling element.
6. A hitch assembly according to claim 1, wherein the second coupling element is mounted to a towed vehicle and the actuator is mounted to a towing vehicle.
7. A combination according to claim 1, wherein the first coupling element can be latched to the second coupling element while the rod member is in an intermediate position, with the guide element still embracing the rod member.
8. A combination of a towing vehicle and a towed vehicle that can be coupled together with a hitch assembly, the hitch assembly comprising:
a first coupling element;
a second coupling element configured to be latched to the first coupling element;
a rod member having a length, a first end and a second end, the first end being connected to the first coupling element;
an actuator with a movable output member arranged to move between a retracted and an extended position, the output member being connected to the second end of the rod member via a pivot element defining a vertical pivot axis; and
a longitudinally extending guide element arranged for selectively simultaneously embracing the pivot element and at least a part of the length of the rod member so as to prevent pivoting of said rod member about said vertical axis;
wherein the pivot element and the part of the length of the rod member are embraced by the guide element when the actuator is in the retracted position, and the pivot element and rod member are free of the guide element when the actuator is in the extended position,
such that the guide element guides the rod member longitudinally when the actuator moves the first coupling element towards the second coupling element and such that the pivot element allows a pivot movement of the first coupling element with respect to the actuator about the vertical pivot axis only when the towing vehicle tows the towed vehicle and the actuator is in the extended position.
9. A combination according to claim 8, wherein the first coupling element can be latched to the second coupling element while the rod member is in an intermediate position, with the guide element still embracing the rod member.
10. A combination according to claim 8, wherein the guide element is tubular and the output member of the actuator is connected to a support member shaped complementary to and located within the guide element.
11. A combination according to claim 8, wherein the actuator comprises a housing disposed in longitudinal alignment with, and connected to, the guide element.
12. A combination according to claim 11, wherein the actuator comprises a hydraulic cylinder having a piston rod within the housing, the piston rod being connected to the pivot element.
13. A combination according to claim 12, and further including an accumulator coupled to said hydraulic cylinder via a control valve wherein the hydraulic cylinder can be connected to the accumulator to provide a damping function to reduce shock on the towing vehicle and on the towed vehicle when accelerating or decelerating.
14. A combination according to claim 8, wherein the guide element has a first end region remote from said actuator which is mounted to said towing vehicle for pivoting about a horizontal axis; a remotely controlled drive means being connected to said guide element for selectively pivoting said guide element in a vertical direction about said horizontal axis responsive to operation of said drive means.
15. A combination according to claim 8, wherein the towing vehicle is a combine and the towed vehicle is one of a header transport cart and a header with wheels.
16. A combination according to claim 8, wherein the towing vehicle comprises a frame to which an end region of said guide element remote from said actuator is connected for pivoting about a horizontal axis; and a remotely controlled drive means being coupled to said actuator, whereby the orientation and position of the actuator and the guide element with respect to the frame and said second coupling element can be altered by operation of said remotely controlled drive means.
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. An antiperspirant composition comprising:
at least one dispersion of cationic colloidal particles of silica modified with a multivalent cation, wherein the dispersion is present in an amount effective to reduce human perspiration.
2. The antiperspirant composition according to claim 1, wherein the silica particles have a number-average diameter ranging from 3 to 150 nm.
3. The antiperspirant composition according to claim 2, wherein the silica particles have a number-average diameter ranging from 10 to 25 nm.
4. The antiperspirant composition according to claim 1, wherein the silica particles comprise from 5% to 60% by weight of silica (SiO2).
5. The antiperspirant composition according to claim 4, wherein the silica particles generally comprise from 10% to 50% by weight of silica (SiO2).
6. The antiperspirant composition according to claim 1, wherein the at least one dispersion of cationic colloidal particles of silica modified with a multivalent cation is in a dispersion medium chosen from an aqueous, aqueous-alcoholic or alcoholic medium.
7. The antiperspirant composition according to claim 6, wherein the dispersion medium is an aqueous medium.
8. The antiperspirant composition according to claim 1, wherein the silica particles have a proportion of cation-covered surface ranging from 1% to 100%.
9. The antiperspirant composition according to claim 8, wherein the silica particles have a proportion of cation-covered surface ranging from 20% to 40%.
10. The antiperspirant composition according to claim 1, wherein the cation present in the colloidal particles of modified silica is chosen from alkaline-earth metals, transition metals and aluminum (Al3+).
11. The antiperspirant composition according to claim 10, wherein the cation is chosen from aluminum (Al3+) andor zirconium (Zr4+) andor hafnium (Hf4+).
12. The antiperspirant composition according to claim 11, wherein the cation is aluminum (Al3+).
13. The antiperspirant composition according to claim 1, wherein the modified silica particles further comprise an anionic stabilizing counterion.
14. The antiperspirant composition according to claim 13, wherein the stabilizing counterion is chloride (Cl\u2212).
15. The antiperspirant composition according to claim 1, wherein the cationic colloidal silica particles are present in an amount ranging from 1% to 80% by weight of active material, relative to the total weight of the composition.
16. The antiperspirant composition according to claim 15, wherein the cationic colloidal silica particles are present in an amount ranging from 10% to 50% by weight of active material, relative to the total weight of the composition.
17. The antiperspirant composition according to claim 1, wherein the pH is less than or equal to 7.
18. The antiperspirant composition according to claim 17, wherein the pH ranges from 3 to 6.5.
19. The antiperspirant composition according to claim 1, wherein it is conditioned such that it can be contained in an aerosol device, a pump-dispenser bottle, a roll-on, a device equipped with a perforated wall, or a wand (stick).
20. An antiperspirant product comprising, an aerosol device comprising:
(a) a container comprising a pressurized composition comprising at least one dispersion of cationic colloidal silica particles modified with a multivalent cation, and
(b) at least one propellant and a device for distributing the antiperspirant composition.
21. The antiperspirant composition according to claim 1, further comprising at least one additional antiperspirant active agent.
22. The antiperspirant composition according to claim 1, further comprising at least one additional deodorant active agent.
23. The antiperspirant composition according to claim 1, further comprising at least one oil chosen from volatile and non-volatile, silicone and hydrocarbon-based emollient oils.
24. The antiperspirant composition according to claim 1, further comprising at least one suspension agent.
25. The antiperspirant composition according to claim 1, further comprising at least one organic powder.
26. The antiperspirant composition according to claim 1, further comprising at least one water-immiscible organic liquid phase and at least one agent for structuring said phase.
27. A cosmetic process for treating human perspiration, comprising:
applying to the surface of the skin an effective amount of a dispersion of cationic colloidal silica particles,
wherein the dispersion of cationic colloidal silica particles are modified with a multivalent cation.
28. The cosmetic process according to claim 27, wherein the antiperspirant composition is conditioned such that it can be contained in an aerosol device, a pump-dispenser bottle, a roll-on, a device equipped with a perforated wall, or a wand (stick).
29. A cosmetic process for treating body odor, comprising:
applying to the surface of the skin an effective amount of a dispersion of cationic colloidal silica particles modified with a multivalent cation.
30. The cosmetic process according to claim 29, wherein the antiperspirant composition is conditioned such that it can be contained in an aerosol device, a pump-dispenser bottle, a roll-on, a device equipped with a perforated wall, or a wand (stick).