tyco international industry mechanical hvac commercial mining institutional and industrial founded 1850 headquarters lansdale pennsylvania u.s. key people colleen repplier president parent tyco international website www.grinnell.com grinnell mechanical products a brand of tyco international ltd. manufactures grooved piping and mechanical products . grinnell mechanical products specializes in mechanical fire hvac commercial mining institutional and industrial applications . grinnell grooved products are used in various industries because they are historically more efficient than flanged welded and threaded pipe joining methods . key product lines include grooved couplings and fittings g press systems strainers stainless steel systems copper systems and g mine pvc systems . grinnell mechanical products offers mechanical services used for supporting engineering and design . these include 2d and 3d drawings for the mechanical room and design suggestions and easy to follow installation drawings with legends for each pump . 1 contents 1 products 1.1 mechanical and fire products 1.2 services 2 history 2.1 early history 2.2 2012 2.3 1990s 2.4 1990 1970 2.5 1970 1950 3 photo gallery 4 references 5 external links products edit grinnell mechanical products mechanical and fire products edit grinnell grooved products include grooved couplings grooved fittings mechanical tees valves circuit balancing valves copper systems stainless steel systems plain end systems hdpe systems pvc systems g press systems gaskets and spare parts and preparation equipment as well as accessories such as strainers tee strainers suction diffusers dielectric waterway transition fittings dielectric waterway groove threads and dielectric waterway male threads . grinnell grooved products have a 10 year limited warranty for most products except for the g mine line of products which are warranted for six months . the company s fire protection products comprise rigid and flexible couplings full and short pattern grooved elbows and tees and a variety of valves and accessories . 2 services edit grinnell mechanical services include shop drawings pump assemblies and equipment connections cost comparisons crate and tag handling thermal movement analyses cad blocks and families and training services . 3 history edit early history edit the predecessor for grinnell corp. was providence steam and gas pipe co. founded in providence rhode island in 1850 . the company specialized in gas main installations putting in the original gas mains in rhode island . they eventually grew to offer pipe fitting and plumbing services . in 1869 frederick grinnell a massachusetts born engineer purchased a controlling interest in providence steam and gas and became its president . fire protection was a new science in this time period and depended on manually turning on the sprinklers . in 1874 henry s. parmelee of new haven connecticut patented an automatic sprinkling device and four years later the providence steam and gas pipe co. secured the right to manufacture and install it paying royalties to the inventor . in 1881 grinnell patented an improved more sensitive sprinkling system . 4 through the next few decades grinnell sprinklers were installed in thousands of buildings and were credited with saving thousands of lives . frederick grinnell took out some 40 patents for improvements and also invented a dry pipe valve and automatic fire alarm system . to improve the quality of its iron castings general fire extinguisher established its own foundry and shops in cranston rhode island opening the operation in 1909 . 5 2012 edit pentair valve and control through an all stock merger 6 took operational control over the valve manufacturing and distribution from grinnell mechanical products . 7 1990s edit grinnell grooved products became one of tyco s leading manufacturing units . going into the mid 1990s grinnell corp. was actually a family of companies that included grinnell manufacturing grinnell fire protection grinnell supply sales ansul wormald mueller hersey allied and total walther . 8 1990 1970 edit grinnell s bottom line was so attractive that in december 1968 the giant conglomerate international telephone & telegraph itt offered to acquire grinnell for an exchange of stock valued at almost 250 million . grinnell shareholders backed the merger in august 1969 despite the justice department s decision to oppose it on antitrust grounds . in 1971 a consent judgment required itt to divest itself of grinnell s fire protection division and grinnell s share in hajoca by september 24 1973 . 9 when itt was unable to receive what it considered an acceptable bid for the fire protection unit the concern was turned over to a court appointed trustee . operating as grinnell fire protection systems co. the unit whose annual turnover had risen to 107 million was purchased by tyco laboratories in 1976 . as part of the deal with itt tyco agreed to pay itt 14 million and 40 percent of grinnell s net earnings for the next 10 years with a minimum total payment of 28.5 million guaranteed ; in return tyco gained two manufacturing plants plus other facilities tools equipment patent rights and trademarks . 10 1970 1950 edit grinnell acquired a controlling interest in american district telegraph co. adt security services manufacturer of electrical supervisory and alarm systems for protection against fire burglary holdup and other hazards . further grinnell stock was trading at nearly triple the 1953 value . 11 at this time grinnell and its acquired subsidiaries held more than 87 percent of the central station fire and burglar alarm business in the united states according to the u.s. justice department . however this field of business accounted for only about 20 percent of grinnell s annual sales volume and profits with plumbing supplies and fixtures being responsible for most of the rest . we are major manufacturers of the valves and fittings that go into sprinkling systems but that is not our biggest business fleming told a forbes interviewer in 1965 . we also make industrial piping systems and humidifying systems . we are strictly an industrial supplier . 12 photo gallery edit grinnell mechanical products coupling grinnell mechanical products installation grinnell mechanical products g mine grinnell mechanical products hvac installation references edit http www.fundinguniverse.com company histories grinnell corp company history.html http investing.businessweek.com research stocks private snapshot.asp privcapid 681365 http investing.businessweek.com research stocks private snapshot.asp privcapid 681365 international directory of company histories vol . 13 . st. james press 1996 . grinnell 1850 to 1950 providence r.i. grinnell corp. n.d. http investors.tyco.com phoenix.zhtml c 112348 & p irol newsarticle & id 1677513 & highlight http valves.pentair.com valves brands grinnell http www.grinnell.com http investing.businessweek.com research stocks private snapshot.asp privcapid 681365 tyco labs is named successful bidder for itt s grinnell wall street journal september 23 1975 p. 16 . international directory of company histories vol . 13 . st. james press 1996 . hoddeson david after the break up barron s may 27 1968 pp. 5 26 27 . external links edit official site for grinnell mechanical and grooved products retrieved from https en.wikipedia.org w index.php title grinnell mechanical products & oldid 737798218 categories tyco international navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as 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