| Patent Number |
Title Of Patent |
Date Issued |
| RE32646 |
Mechanical seals with setting block for use with slurry pumps |
April 19, 1988 |
| A mechanical seal assembly, especially for use in a slurry pump in which the seal rings are resiliently urged into sealing relation by at least one elastomeric assembly loaded in shear. The preferred embodiment is constructed as a carriage for installation and removal as a unit but it |
| 4722534 |
Face seal with automatic face convergence means |
February 2, 1988 |
| A controllable mechanical seal for sealing a rotating body relative to a housing of a fluid device. The mechanical seal includes a pair of seal rings supported in juxtaposed relation in said housing. Each seal ring has a cylindrical outer surface and a radial end sealing face which, at a |
| 4703939 |
Mechanical seal with radially disposed bias component |
November 3, 1987 |
| A mechanical seal assembly disposed within a pump housing for retarding the flow and leakage of fluids and other matter from being pumped along the motor drive shaft. The mechanical seal assembly of the present invention includes a non-rotating seal ring and a seal ring which rotates wit |
| 4653980 |
Mechanical seal for pumps and method of fabricating same |
March 31, 1987 |
| A mechanical seal assembly for use with centrifugal pumps including at least one unitized elastomer assembly for urging the seal faces of a pair of seal rings into sealing engagement with each other. The unitized elastomer assembly serves as a seal ring mounting arrangement and includes |
| 4557489 |
Pressure balanced seal |
December 10, 1985 |
| A pressure balanced mechanical seal, especially adaptable for use in a swivel in an oil well drilling arrangement comprising a pair of relatively rotatable seal rings constructed of silicon carbide or tungsten carbide each received in a cavity defined by a cylindrical and a radial wall i |
| 4537385 |
Low emission valve |
August 27, 1985 |
| A low emission valve assembly for use with volatile fluids and incorporating a pair of independent inner and outer metal bellows mechanical seal assemblies with means to compensate for thermal expansion of a liquid between the seals and which means transmits product pressure within t |
| 4418919 |
Mechanical seals with setting block for use with slurry pumps |
December 6, 1983 |
| A mechanical seal assembly, especially for use in a slurry pump in which the seal rings are resiliently urged into sealing relation by at least one elastomeric assembly loaded in shear. The preferred embodiment is constructed as a cartridge for installation and removal as a unit but it |
