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US 11,746,906 B1Granted
Lip seals and related methods
AssigneeBal Seal Engineering, Inc.
InventorsMiquel Balta, Marc Soriano, Serdar Eren
Life of this patent
Estimating the term…
Abstract
Seal assemblies, gaskets, bearing assemblies, and their components can be used as pre-packaged seal systems and pre-packaged seal and bearing systems. The seal assemblies can be orientated in different configurations for different applications. Gaskets to restrict flow and gaskets with memory lips to operate as sealing lips can be included to increase the number of sealing points. In a pre-packaged configuration, the cylinder can be a straight cylinder, a stepped cylinder, or a split cylinder. Bearing assemblies can be pre-packaged with the sealing assemblies and service grease may optionally be used to provide lubrication and limit fluid incursion into the spring cavities.
Claims30
A seal system comprising:
- a housing cylinder having a body, an interior surface defining a bore, a retaining end having a retaining wall at one end of the bore, and an insertion end at an opposite end of the bore;
- a seal assembly located in the bore of the housing cylinder, the seal assembly comprising a seal element, a locking ring, and an energizer;
- wherein the seal element comprising a spring cavity formed by an inside flange, an outside flange, and a center channel section having the energizer located therein, and wherein the inside flange defining an inside diameter and the locking ring being pressed against the bore and mechanically engaged to the outside flange;
- a washer in contact with the seal element and the retaining wall, the washer comprising an outside perimeter and an inside perimeter defining an opening;
- a shaft having a length and an outside diameter;
- wherein the shaft projects through the opening of the washer and the inside diameter of the seal element;
- and
- wherein the opening of the washer and the inside diameter of the seal element are smaller than the outside diameter of the shaft to form respective interference fit with the shaft.
5 more elements
A seal system comprising:
- a housing cylinder having a body, an interior surface defining a bore, a retaining end having a retaining wall at one end of the bore, and an insertion end at an opposite end of the bore;
- a seal assembly located in the bore of the housing cylinder, the seal assembly comprising a seal element, a locking ring pressed against the bore of the housing cylinder, and a canted coil spring;
- wherein the seal element comprises a spring cavity formed by an inside flange, an outside flange, and a center channel section, and wherein the inside flange defines an inside diameter and the canted coil spring is located in the spring cavity;
- a washer located in the bore and in contact with the seal element and the retaining wall, the washer comprising an outside perimeter and an inside perimeter defining an opening;
- a shaft having a length and an outside diameter, the shaft projecting through the opening of the washer and the inside diameter of the seal element;
- an excluder at an end of the center channel section and located adjacent an annular recess, wherein the excluder has an inside diameter having a dimension that is smaller than the outside diameter of the shaft;
- and
- wherein the washer is separately formed from the seal element.
5 more elements
A seal system comprising:
- a housing cylinder having a body, an interior surface defining a bore, a retaining end having a retaining wall at one end of the bore, and an insertion end at an opposite end of the bore;
- a seal assembly located in the bore of the housing cylinder, the seal assembly comprising a seal element a spring cavity formed by an inside flange, an outside flange, and a center channel section and having an energizer located therein, wherein the inside flange defines an inside diameter, and wherein the inside flange and the outside flange point in a direction of the retaining wall;
- a washer in contact with the center channel section and spaced from the retaining wall, the washer comprising an outside perimeter and an inside perimeter defining an opening;
- a shaft having a length and an outside diameter, the shaft is located in the opening of the washer and the inside diameter of the seal element;
- and
- a retaining disc pressed against the bore of the housing cylinder and in contact with the washer for retaining the seal assembly and the washer within the bore of the housing cylinder.
3 more elements
A seal system comprising:
- a housing cylinder having a body, an interior surface defining a bore, a retaining end having a retaining wall at one end of the bore, and an insertion end at an opposite end of the bore;
- a seal assembly located in the bore of the housing cylinder, the seal assembly comprising a seal element, a locking ring pressed against the bore of the housing cylinder, and a canted coil spring;
- wherein the seal element comprises a spring cavity formed by an inside flange, an outside flange, and a center channel section, wherein the inside flange defines an inside diameter, and wherein the canted coil spring is biased against the locking ring and the inside flange;
- a washer located in the bore between the seal element and the retaining wall, the washer comprising an outside perimeter and a memory lip having an opening at an inside perimeter;
- a shaft having a length and an outside diameter, the shaft is located in the opening of the washer and the inside diameter of the seal element;
- an excluder at an end of the center channel section and located adjacent an annular recess, wherein the excluder has an inside diameter having a dimension that is smaller than the outside diameter of the shaft;
- wherein the washer is separately formed from the seal element and the memory lip points away from the excluder;
- and
- wherein the inside flange and the outside flange of the seal element point away from the retaining wall.
6 more elements
Dependencies are inferred from the claim text.