Abstract: A seal 10 for sealing between a splined shaft 30 and a housing 32 having a bore 34 through which the splined shaft 30 extends. The seal 10 includes a shell 12 and an elastomeric body 14 bonded thereto. The body 14 includes a mounting portion 16 and a toothed seal portion 18 having a plurality of seal teeth 42 that are matingly received in the grooves 48 in the splined shaft. The seal teeth 42 are molded to provide interference "y" at the top and bottom of the teeth 42 and interference "x" at the sides; x.gtoreq.150% y. The seal 10 also has a seal 24 to seal against the housing 32.

Abstract: A two-part, separable, semi-unitized shaft seal for sealing between a housing bore and a relatively rotatable shaft extending through the bore and comprising a metal wear sleeve member and a sealing member assembled onto the wear sleeve member for transportation, shipping and installation of the seal as a unitized seal. However, when the housing and shaft are disassembled, one of the two seal parts remains with the housing and the other part remains with the shaft, whereby each part can be examined and replaced, if necessary, without discarding the entire seal. One seal part press-fits onto one of the housing and shaft and the other seal part forms an elastomeric interference fit on the other of the housing and the shaft.

Abstract: A thrust washer is combined with a seal for preventing contaminants from entering into the assembly and doing corrosion damage. In one embodiment, a spring shackle bracket assembly thrust washer is provided with an elastomeric seal bonded thereto and having a sealing lip extending from the I.D. of the washer axially into the space between the spring eye and the shackle pin. In addition, a layer of the seal material on a radial face of the washer can prevent wear between the washer and the adjacent bracket.

Abstract: A shaft seal (and method for making the same) of the type having an annular elastomeric body, a molded lip, and the molded lip having a liner of sintered polytetrafluoroethylene bonded thereto. The elastomer is molded simultaneously with the polytetrafluoroethylene liner being formed and bonded to the elastomer. The method for making the seal employs the same mold used to make common, molded lip elastomeric seals.

Abstract: An annular scraper and a shaft seal including a scraper and a method for making the same. The seal and scraper are of bonded construction. The seal includes an outer shell such as a stainless steel capsule, a polytetrafluoroethylene sealing element, a brass scraper, and a bonded elastomeric ring behind the scraper to allow deflection and return of the scraper. The scraper is preferably a single member having a continuous, uniform scraping edge without any slits. A bushing can be included for guiding a reciprocating shaft (a cable or rod) in near perfect alignment. The process preferably includes the step of forming the scraping edge by pinching or piercing a brass member in the mold simultaneously with the steps of molding the elastomeric ring and bonding the elastomeric ring to the scraper. The process of making the seal includes the step of simultaneously forming the ring of polytetrafluoroethylene into a sealing element.

Abstract: Terra sigillata coated ceramic cookware vessels, such as bread pans. Bread baked in such pans has the taste and physical qualities of bread baked in a brick oven. In addition, the baked bread releases easily from the pan.

Abstract: A narrow cross section (about 0.110 inch) grease purgeable bushing seal that can be installed in the same housing bore diameter as that of the bushing without the need for machining a larger counter bore in the housing, including a metal shell with a radially inwardly turned flange at the bushing side thereof, and an elastomeric sealing element molded and bonded to the shell. To be grease purgeable, the seal parameters must be within the following ranges for the cross-sectional thickness E, the lip clearance A, the lip thickness B, the lip beam length C, the orifice D and the interference i, as follows:E.ltoreq.0.100 inch+iI=0.000 to 0.015 inchA.gtoreq.bB.gtoreq.23% (e-iC.gtoreq.45% (e-i)D.gtoreq.31% (e-i)The seal can also be turned around and used to seal oil in other applications thereof.

Abstract: A thrust washer having a backing layer of resilient material such as rubber or other elastomers and having, for example, a polytetrafluoroethylene bearing surface, which can include one or more integral sealing lips formed from the polytetrafluoroethylene bearing material. Another aspect of this invention is a unitary article including said resiliently-backed thrust washer in combination with a seal. This unitary article can be purchased and installed as a unit taking the place of four separate prior art elements that had to be purchased and installed separately.

Abstract: A method for baking bread in a sigillata coated ceramic cookware vessels, such as bread pans. Bread baked in such pans has the taste and physical qualities of bread baked in a brick oven. In addition, the baked bread releases easily from the pan.

Abstract: A method for making a shaft seal of the type including an elastomeric body and a polytetrafluoroethylene sealing element comprising inserting a metal shell (if employed in the seal), a synthetic rubber blank prep form and a polytetrafluoroethylene sealing element into a transfer or compression mold, and then closing the mold to simultaneously form a sealing lip portion of the polytetrafluoroethylene sealing element into the desired shape, mold the rubber into the desired shape and bond the rubber to the shell (if used) and to the anchor portion of the polytetrafluoroethylene sealing element.

Abstract: A method for making an annular shaft seal of the type having an elastomeric sealing element bonded to a metal shell having a guard or scraper portion having a sharp I.D. edge, in which the sharp I.D. edge is formed or "pierced" during the molding process simultaneously with the elastomeric sealing element being molded and bonded to the shell.

Abstract: Non-porous, Alfred shale terra sigillata coated ceramic utensils, such as cooking pans, pots, plates, cups and heating and serving dishes, having non-sticking food-contacting surfaces are provided for use in the preparation and/or serving of foodstuffs. The ceramic utensils comprise a ceramic body and an Alfred shale terra sigillata coating on said body, both body and coating preferably being made from Alfred shale.

Abstract: An annular shaft seal and method for sealing the shaft of a water pump used with coolants containing anti-corrosion compounds that can precipitate out as particles that can cause wear of shaft and seal. The shaft seal of this invention has a primary sealing element and a unique auxiliary sealing element. The unique auxiliary sealing element has a large lip contact width and is located axially inwardly of the primary sealing element for causing the anti-corrosion compounds to precipitate out at a location axially inwardly from the primary sealing element and over a larger than normal area thus reducing shaft wear due to lower unit loading. The seal also includes means for preventing the precipitated-out particles from reaching the shaft-contacting lip of the primary sealing element.

Abstract: A lip-type cartridge shaft seal has its toroidal body cavity filled with a silicone rubber adhesive sealant bonded to the main body of the seal. The silicone's adhesive properties and its lower hardness stabilize the body against collapse under intermittent or continuous high pressure forces without interfering with body flexibility.

Abstract: A lip-type cartridge shaft seal has its toroidal body cavity filled with a silicone rubber adhesive sealant bonded to the main body of the seal. The silicone's adhesive properties and its lower hardness stabilize the body against collapse under intermittent or continuous high pressure forces without interfering with body flexibility.

Abstract: A shaft seal of the type including an annular metal case and a flexible non-elastomeric sealing element such as polytetrafluoroethylene is made by molding a synthetic rubber filler ring between the metal case and the sealing element such that it bonds to both the metal case and to the sealing element, providing a faster and less expensive method of manufacturing the seal, while eliminating any leakage route between the metal case and the sealing element and also eliminating the I.D. to O.D. concentricity problem. In the embodiment where the sealing element is polytetrafluoroethylene, the filler ring chemically bonds to the metal case and mechanically bonds to the sealing element. Hydrodynamic pumping members can be molded onto the shaft engaging surface of the sealing element during the process of molding the synthetic rubber filler ring.

Abstract: A seal having at least one screw thread molded into the elastomeric mounting surface thereof. The mating surface of the housing can also be provided with at least one screw thread to mate with the screw thread(s) on the seal.

Abstract: A seal and a method for installing a seal over a first portion of a shaft (such as a larger diameter splined portion) and for sealing against a second portion of the shaft, in which, during installation, the sealing lip is moved to a non-sealing configuration out of contact with the first portion of the shaft.

Abstract: A shaft seal of the type including a metal case and a polytetrafluoroethylene sealing element, is provided with an auxiliary sealing lip by providing a radial flange of the metal case with a plurality of circumferentially spaced-apart apertures therethrough and molding an annular filler ring of synthetic rubber in the space between the sealing element and the metal case such that the rubber also flows through the apertures to the other side of the radial flange of the metal case and forms an auxiliary lip there. The filler ring chemically bonds to the metal case and mechanically bonds to the sealing element to lock the sealing element in place while also forming an auxiliary lip.

Abstract: A method for producing a bi-directional hydrodynamic sealing element for a shaft seal wherein the sealing element is made from a non-elastomeric material such as polytetrafluoroethylene, and has a sealing lip and a plurality of bi-directional pumping elements on a shaft engaging surface thereof, formed as a series of non-concentric circles or other geometric figures on the non-elastomeric sealing element while it is flat. The centers of the non-concentric circles are located on the periphery of a circle concentric with the sealing lip. The flat sealing element is then formed into a conical lip type sealing element and the circular pumping elements become elliptically shaped, bi-directonal helical pumping elements.