Talk:Peristaltic pump

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NPOV dispute - Biased or questionable information source? Eccentric single cam pumps

I note that a large amount of the text and terminology others have questioned in this article is repeated, verbatim, on http://www.eccentricpumps.com who sell the single bearing pump you see a picture of in the main article, as the very first image. And they've included a link to their site from the article.

The article doesn't make any mention of possible negatives for the single cam design, such as back flow being able to pass through one pinch point easier than it will a multiple. I'm no expert on these pumps, but I imagine that would be a possible negative of the design and be important to a lot of the people who use these specifically to deal with critical, highly reactive or biologically contaminated systems.

Another drawback is that the single cam rotor is inherently unbalanced, which means vibration. If you search youtube for "eccentric pump" you'll see one vibrating across a bench.

Yet another issue is that blocking the discharge port can cause the tubing to bind up inside the cavity, because there aren't any other pinch points to hold it in place. It then needs backing up to untangle the hose. Again, there are videos of that happening on youtube under the same search.

Do we have any WP:RS references that we can support these disadvantages with and add them to the list? The ones present at the moment in Peristaltic_pump#Disadvantages are simply given with no citations. I'm happy to try and expand the list, but I'm not comfortable adding to it without the needed citations. I'm not sure I agree that the current state of the article is written pushing a particular POV, but I'm certainly in favor of improving its completeness. Any external links to the company you mention appear to have been removed, and the article rewritten substantially. I think we should probably proceed by targeting the specific sections that need to be expanded on (Template:Expand_section) and cited (Template:Refimprove), so we can deal with this article's deficiencies more directly.Nmillerche (talk) 21:10, 25 May 2013 (UTC)[reply]

If the first paragraph of this section is accurate it raises two major issues. Verbatim text from the website listed is WP:COPYVIO. If verbatim text remains in the article please place this in the article {{copypaste | url=http://www.eccentricpumps.com}}. This behavior also sounds like WP:ADVERT. Please sign comments and do not remove autosignatures.MrBill3 (talk) 20:03, 29 May 2013 (UTC)[reply]

The URL given no longer exists, but I found some product information from an Eccentric Pumps LLC sales page that closely matched the prose of that section. Since it only applies to a paragraph, I've marked that specific section with a {{copypaste}} template, including the new URL. This is more of a COPYVIO issue than an NPOV matter, so I've adjusted the article as such. Nmillerche (talk) 02:49, 1 June 2013 (UTC)[reply]

Put titles on your comments :P

I'm not a pump expert but isn't the 'shoe' or 'wiper' a 'cam'? That way we can put a link in to another article.

Also, it's my understanding that peristaltic pumps can be made the cheapest of all pumps. Therefore it's used in the low-cost battery-operated self-contained "fountains" that are all the rage right now. Furthermore, the weak point of peristatlic pumps is the flexible tubing. Becaused it's flexed, it will eventually wear out first. Otherwise, the rest of the pump is extremely reliable. Samw 03:41 22 May 2003 (UTC)

I've spent all morning using a cheap (£10) battery-powered water pistol. I had to assume it was using a peristaltic pump (one of the decorative windows shows a rotating plastic object likely linked to the motor). I'm tempted to take it apart but I'm not sure what else it could be powered by. Pitt2 18:25, 14 July 2007 (UTC)[reply]

Wikipedia defines "cam" as "A cam is a projecting part of a rotating wheel or shaft that strikes a lever at one or more points on its circular path. The cam can be a simple tooth, as is used to deliver pulses of power to a steam hammer, for example, or an eccentric disc or other shape that produces a smooth oscillating motion in the lever." I think this means the shoe is not a cam. --81.153.76.99 16:35, 25 February 2007 (UTC)[reply]

Dr. Michael De Bakey did NOT invent the peristaltic pump

Dr. Michael De Bakey did NOT invent the peristaltic pump. According to my research the earliest finding/patent I found was US patent (US249285) which was published in 1881 by Eugene E. Allen. Here is the link to the patent: http://www.google.com/patents?id=yzpRAAAAEBAJ&pg=PA4&dq=249285&hl=en&ei=Hj9qTsucKqyfsQKF_Zi8Bg&sa=X&oi=book_result&ct=result&resnum=1&sqi=2&ved=0CC8Q6AEwAA#v=onepage&q&f=false — Preceding unsigned comment added by Gunayozturk (talk • contribs) 18:50, 16 March 2011 (UTC)[reply]

Hello Gunayozturk, I've just registered to edit Wikipedia and I'm a complete newbie. A few years ago Wikipedia mentioned the work of British inventor Bernard Refson who designed, patented, manufactured and commercialised peristaltic pumps which were sold in the UK, Europe and beyond for medical and industrial uses. (I downloaded that Wikipedia page and still have it with all the references.) When I recently checked Wikipedia I noticed that all reference to his work had been removed. If you know how I can find out why this happened, I would be grateful for some direction. Thanks in anticipation. Hololing35 (talk) 18:46, 13 March 2024 (UTC)[reply]

Liear or finger pumps not described

I notice the neat picture of the linear pump but it is not described further in the text.

I expect it should at least rate a mention in the tubin pumps section as a linear/finger type pump Idyllic press (talk) 09:30, 4 October 2012 (UTC)[reply]

no copyvio?

I disagree with the notice. I think it is clear that WP is the original source of the material. The watertechonline.com article appeared in October 2016. See this early snapshot, for example: https://web.archive.org/web/20161101122120/https://www.watertechonline.com/positive-displacement-pump-water-services/ It copies the lead from the Wikipedia article nearly verbatim. For reference, here is the August 2016 WP version: https://en.wikipedia.org/w/index.php?title=Peristaltic_pump&oldid=735262467

I also think it was extreme to tar the entire WP article with the copyvio brush. Could you at least describe which particular portions you believe are a violation? 136.62.254.174 (talk) 15:44, 25 August 2018 (UTC)[reply]

Okay, I think you all were able to find things I wasn't able to in terms of the timing of who copied what from where. This was the first time I reported a potential copyvio, so I did try to use what seemed to be the right template. I'm pretty convinced it was the other way around. Limetom 23:10, 26 August 2018 (UTC)[reply]