Olefin polymerization catalyst systems including a high molecular weight catalyst compound and a low molecular weight catalyst compound, and methods of making same are provided. High molecular weight catalysts include metallocene catalysts and low molecular weight catalysts include non-metallocene compounds including biphenyl phenol compounds. Generally catalyst systems may include less than about 5.0 mol % of the high molecular weight catalyst compound relative to said low molecular weight catalyst. Methods for olefin polymerization including the aforementioned catalyst systems, and polyolefins and products made therefrom.

Polymerization Catalysts, Methods of Making, Methods of Using, and Polyolefin Products Made Therefrom

A purpose of the present invention is to provide an orifice-nozzle-type, Venturi-nozzle-type, and tunnel-structure resistance-tube-type steam trap that is capable of responding to changes in drain drainage amount that accompany, among other things, fluctuations in the operational pressure differential between a steam trap inlet and outlet and is capable of responding to fluctuations in the amount of steam used as a result of the driving conditions of steam-using equipment, external factors due to the seasons, or the like. Another purpose of the present invention is to provide a strainer filter that eliminates the strength insufficiencies that accompany the miniaturization of a strainer screen for a steam trap of the abovementioned types, that maintains the form of the screen, that enables easy mounting/removal of the screen to/from the strainer, and for which cleaning of the screen and other maintenance are easy. The steam strap of the present invention is an orifice-nozzle-type, Venturi-nozzle-type, and tunnel-structure resistance-tube-type steam trap that has a drain drainage amount adjustment mechanism that is a piping structure in which the height difference between a drain of a Venturi nozzle and a drain system outer discharge outlet is variable. Further, the strainer filter of the present invention is provided with a support body that reinforces the rigidity of a screen that is mounted to a strainer, the support body being provided on the inner side and/or outer side of the screen.

Nozzle-type steam trap

A ball valve unit for shutting off the flow of fluids flowing in heating and plumbing systems. The ball valve unit includes a ball valve and a main section including a flange formed integrally with the main section. A chamber is formed in the main section for receiving the ball of the ball valve. The main section is made of brass in order to prevent galvanic action between ball valve unit and the heating/plumbing system.

Ball valve of unitary construction

A steam trap mounting arrangement includes a mount body (70) that includes one or more integral flanges (76, 78). The flanges function as end fittings for associated ball valves (12, 24). The mount may be a single casting, such as a metal casting. The mount may further be a universal mounting that permits a plurality of different steam trap configurations to be installed thereon.

Steam trap and valve mount assembly

The valve housing can be used for valves and steam traps with a compact automatic control unit. It has a connecting part with two flow ducts and a base on which the open end of a cap rests tightly. Two post-like projections with fastening orifices are provided on the longitudinal axis of the flow ducts on the connecting part next to the base and the cap. The cap has two laterally projecting screw bearings. They are arranged at a distance from the open end of the cap in front of the ends of the projections on the longitudinal axis of the flow ducts and are provided with screw holes. The cap is connected to the connecting part by two fastening screws which penetrate through the screw holes and are screwed into the fastening orifices of the projections.

Valve housing with a connecting part and a cap

of EP0949446The fixture housing has a hood (1) and a connecting part (2) provided with throughflow channels (3,4) and end connecting flanges (5,6), all aligned with one another. The connecting part has a connection (7) inclined to the throughflow channels, the free end of which is closed by a plug (8). Inside the connection is a tubular dirt sieve (9), the interior of which is connected to the throughflow channel (3). The other throughflow channel (4) extends from the connecting flange (6) outwards into the connecting part. The connecting part has laterally and parallel to the throughflow channels a base (10). The hood has a round cross-section, which locates with its open end (12) tightly on the base and is provided with two laterally extending screw layers (13,14).

Valve housing with a connector and a hood

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Borowski Ralf

Author Tools

Chat about Author

Papers

Valve housing with a connecting part and a cap

Valve housing with a connector and a hood