Abstract: A junction box for a solar panel having a housing, a lid, a first connector and a second connector. The housing comprises sidewalls and a top wall defining an interior space. The first coupling having a first contact element and the second coupling having a second contact element. The contact elements penetrate at least one of the sidewalls, so that the contact elements provide an electrical contact from external contact elements to internal contact elements, such as solder tails. Internal contact elements are arranged a, least partially in the interior space. The top wall having an opening extending only partially in the top wall. The opening is located such in the top wall that access to the solder tails in a substantially perpendicular direction to the surface of a solar panel for connecting the solder tail to the solar panel is provided.

Abstract: A device for thermal energy harvesting can use pulsed heat.

Abstract: A junction box for a solar panel comprises a housing, a lid, a first connector and a second connector. The housing comprises sidewalls and a top wall defining an interior space. The first coupling comprises a first contact element and the second coupling comprises a second contact element. Said contact elements penetrate at least one of the sidewalls, so that the contact elements provide an electrical contact from external contact elements to internal contact elements, such as solder tails. Internal contact elements are arranged at least partially in said interior space. The top wall comprises an opening extending only partially in said top wall. Said opening is located such in the top wall that access to said solder tails in a substantially perpendicular direction to the surface of a solar panel for connecting the solder tail to the solar panel is provided.

Abstract: A contact element (1) for providing an electrical contact between a first electrical device (7) and a second electrical device, wherein the contact element (1) comprises a first contact portion (2) to be electrically connected to the first electrical device (7) and a second contact portion (4) to be connected to the second electrical device. The first contact portion (2) is arranged at a distance (D) to the second contact portion (4), whereby the contact element (1) comprises further an adjustment portion (3) connecting said first and second contact portion (2, 4), wherein with said adjustment portion (3) said distance (D) between the first contact portion (2) and the second contact portion (4) is adjustable.

Abstract: A junction box for a solar panel comprises a housing, a lid, a first connector and a second connector. The housing comprises sidewalls and a top wall defining an interior space. The first coupling comprises a first contact element and the second coupling comprises a second contact element. Said contact elements penetrate at least one of the sidewalls, so that the contact elements provide an electrical contact from external contact elements to internal contact elements, such as solder tails. Internal contact elements are arranged at least partially in said interior space. The top wall comprises an opening extending only partially in said top wall. Said opening is located such in the top wall that access to said solder tails in a substantially perpendicular direction to the surface of a solar panel for connecting the solder tail to the solar panel is provided.

Abstract: A junction box for a solar panel comprises a housing, a lid, a first connector and a second connector. The housing comprises sidewalls and a top wall defining an interior space. The first coupling comprises a first contact element and the second coupling comprises a second contact element. Said contact elements penetrate at least one of the sidewalls, so that the contact elements provide an electrical contact from external contact elements to internal contact elements, such as solder tails. Internal contact elements are arranged at least partially in said interior space. The top wall comprises an opening extending only partially in said top wall. Said opening is located such in the top wall that access to said solder tails in a substantially perpendicular direction to the surface of a solar panel for connecting the solder tail to the solar panel is provided.

Abstract: A supported catalyst for olefin polymerization comprises a selected ionic activator, a selected organometallic catalyst and a support material. The selected activator must contain an active hydrogen moeity. The organometallic catalyst is characterized by having a phosphinimine ligand and a substituted cyclopentadienyl ligand (which contains from 7 to 30 carbon atoms). The supported catalyst exhibits excellent activity in gas phase olefin polymerizations and may be used under substantially “non-fouling” polymerization conditions.

Abstract: The use of high activity “Single Site” polymerization catalysts often causes the fouling of polymerization reactors. The problem is particularly acute with gas phase polymerizations. While not wishing to be bound by theory it is believed that the fouling is initiated by the buildup of static charges in the reactor. The use of anti-static agents mitigates this problem, but typical antistatic agents contain polar species, which can deactivate the polymerization catalyst. We have now discovered that the use of a porous metal oxide support allows large levels of a selected antistatic agent to be used in a manner that reduces static/fouling problems in highly active polymerization catalysts.

Abstract: A supported catalyst for olefin polymerization comprises a selected ionic activator, a selected organometallic catalyst and a support material. The selected activator must contain an active hydrogen moeity. The organometallic catalyst is characterized by having a phosphinimine ligand and a substituted cyclopentadienyl ligand (which contains from 7 to 30 carbon atoms). The supported catalyst exhibits excellent activity in gas phase olefin polymerizations and may be used under substantially “non-fouling” polymerization conditions.

Abstract: A process for disrupting filter cake in an underground formation, which process comprises: (i) incorporating into a treatment fluid a solid polymer capable of being converted by hydrolysis into one or more organic acids; (ii) introducing the treatment fluid into the underground formation; and (iii) allowing the solid polymer to hydrolyse in the presence of water to produce organic acid such that acid soluble material within the filter cake or adjacent formation is dissolved.

Abstract: The use of high activity “Single Site” polymerization catalysts often causes the fouling of polymerization reactors. The problem is particularly acute with gas phase polymerizations. While not wishing to be bound by theory it is believed that the fouling is initiated by the buildup of static charges in the reactor. The use of anti-static agents mitigates this problem, but typical antistatic agents contain polar species, which can deactivate the polymerization catalyst. We have now discovered that the use of a porous metal oxide support allows large levels of a selected antistatic agent to be used in a manner that reduces static/fouling problems in highly active polymerization catalysts.

Abstract: A process for producing a self-disrupting filter cake in an underground formation, which process comprises: (a) incorporating into a drilling fluid a solid polymer capable of being converted by hydrolysis into one or more organic acids; (b) using the drilling fluid to drill a wellbore into the underground formation such that the solid polymer in the drilling fluid contributes to the formation of a filter cake; and (c) allowing the solid polymer to hydrolyse in the presence of water and to disrupt the integrity of the filter cake. A drilling fluid which contains as a bridging agent one or more solid polymers capable of being converted by hydrolysis into one or more organic acids is also provided.

Abstract: A wheel support system for a two wheeled vehicle comprises front and rear axles fixed for rotation with the front and rear wheels respectively and bearings on the frame of the vehicle which rotatably supporting the axles therein. Ornamental members are supported on respective free ends of the axles for rotation relative to the frame. The ornamental members are aesthetically pleasing and shield the view of the bearings on the forks for a better overall finished appearance of the frame of a motorcycle or bicycle. By supporting the axle within bearings on the frame with the ornamental members supported on the axle, the ornamental members are permitted to rotate relative to the frame. In order to ensure the rear axle position can be adjusted relative to the engine for adjusting tension to the drive train in a motorcycle, the bearings supporting the rear axle are adjustably supported on the frame relative to the engine.

Abstract: Battery holder 10 includes a housing 12 with a recess 14 for receiving a battery 16. The housing 12 supports a first electrical contact 18, a second electrical contact 20 and a third electrical contact 22. First contact 18 makes electrical contact with a first terminal 24 of the battery 16. The second electrical contact 20 is at an opposite end of the housing 12 and makes electrical contact with second terminal 26 of battery 16. The third electrical contact 22 does not make direct contact with the battery 16. Rather, contact 22 is in electrical contact with one end of a switch 28 supported by the housing 12. Switch 12 is in the form of an elongated strip 30 of electrically conductive material seated in and along a groove 31 formed on an outer surface of the body 12, and is provided with an upstanding finger or tang 32.

Abstract: A phosphinimine catalyst for olefin polymerization is supported on a directly fluorided metal oxide with an aluminoxane. This catalyst is highly active for olefin polymerization in comparison to prior art catalysts which use non-fluorided metal oxide supports. The directly fluorided metal oxide may be conveniently prepared by contacting the precursor metal oxide with a simple alkali metal salt (such as NaF) in an aqueous slurry.

Abstract: Organometallic complexes having two phosphinimine ligands and at least one activatable ligand are catalyst components for olefin polymerization. Preferred polymerization systems are prepared by combining the organometallic complexes with an ionic activator and/or an alumoxane. Preferred catalyst components contain titanium, zirconium, or hafnium and are activated with an ionic activator to form catalysts for ethylene polymerization.

Abstract: Battery holder (10) includes a housing (12) with a recess (14) for receiving a battery (16). The housing (12) supports a first electrical contact (18), a second electrical contact (20) and a third electrical contact (22). First contact (18) makes electrical contact with a first terminal (24) of the battery (16). The second electrical contact (20) is at an opposite end of the housing (12) and makes electrical contact with second terminal (26) of battery (16). The third electrical contact (22) does not make direct contact with the battery (16). Rather, contact (22) is in electrical contact with one end of a switch (28) supported by the housing (12). Switch (12) is in the form of an elongated strip (30) of electrically conductive material seated in and along a groove (31) formed on an outer surface of the body (12), and is provided with an upstanding finger or tang (32).

Abstract: A phosphinimine catalyst for olefin polymerization is supported on a directly fluorided metal oxide with an aluminoxane. This catalyst is highly active for olefin polymerization in comparison to prior art catalysts which use non-fluorided metal oxide supports. The directly fluorided metal oxide may be conveniently prepared by contacting the precursor metal oxide with a simple alkali metal salt (such as NaF) in an aqueous slurry.

Abstract: A supported catalyst for the polymerization of olefins, especially ethylene, has at least two catalyst components having different propagation and/or termination constants. Each catalyst component must have at least one phosphinimine ligand. The polymer produced according to this invention has a broad molecular weight distribution. Catalysts according to this invention have a very surprising and desirable hydrogen response.