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1. WO2021248113 - SINGLE POINT ACTUATION LOW-PROFILE LOCK RING FOR A MECHANICAL SEAL

Publication Number WO/2021/248113
Publication Date 09.12.2021
International Application No. PCT/US2021/036112
International Filing Date 07.06.2021
IPC
F16J 15/18 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15Sealings
16between relatively-moving surfaces
18with stuffing-boxes for elastic or plastic packings
F16J 15/34 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15Sealings
16between relatively-moving surfaces
34with slip-ring pressed against a more or less radial face on one member
F16J 15/54 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS
15Sealings
54Other sealings for rotating shafts
F16B 2/06 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
2Friction-grip releasable fastenings
02Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
06external, i.e. with contracting action
CPC
F16B 39/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
39Locking of screws, bolts or nuts
02in which the locking takes place after screwing down
08with a cap interacting with the nut, connected to the bolt by a pin or cotter pin
F16B 39/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
39Locking of screws, bolts or nuts
02in which the locking takes place after screwing down
12by means of locknuts
F16J 15/184
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS
15Sealings
16between relatively-moving surfaces
18with stuffing-boxes for elastic or plastic packings
184Tightening mechanisms
F16J 15/3464
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS
15Sealings
16between relatively-moving surfaces
34with slip-ring pressed against a more or less radial face on one member
3464Mounting of the seal
F16J 15/3488
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS
15Sealings
16between relatively-moving surfaces
34with slip-ring pressed against a more or less radial face on one member
3464Mounting of the seal
3488Split-rings
F16J 15/54
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
JPISTONS
15Sealings
54Other sealings for rotating shafts
Applicants
  • A.W. CHESTERTON COMPANY [US]/[US]
Inventors
  • USENIA, Joseph
  • VAN EPPS, Alan
  • POWERS, Robert, James
Agents
  • LAURENTANO, Anthony, A.
  • BAUER, John
  • BRULEY, Kenneth, C.
  • COKER, Katherine, E.
  • DIGIORGIO, Jeanne, M.
Priority Data
63/035,51205.06.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) SINGLE POINT ACTUATION LOW-PROFILE LOCK RING FOR A MECHANICAL SEAL
(FR) BAGUE DE VERROUILLAGE À PROFIL BAS À ACTIONNEMENT À POINT UNIQUE POUR JOINT MÉCANIQUE
Abstract
(EN) A mechanical seal (10) that employs a lock ring assembly (20, 22) having associated therewith a locking mechanism. The locking mechanism can include a nut element (26), such as a barrel nut, that allows an associated bolt element (24) to adjust a tightening load and position while clamping occurs of the components of the mechanical seal. This adjustment flexibility removes or reduces unwanted bending stresses in the bolt element, thus allowing for more torque to translate directly to the lock ring. The barrel nut allows for more material to remain in the lock ring, thus providing for additional overall strength relative to a traditional locking element. The lock ring also includes a plurality of flex regions in the form of notches (80) that allow the lock ring to flex when the main body (32, 50) is tightened about the shaft (12).
(FR) Joint mécanique (10) utilisant un ensemble bague de verrouillage (20, 22) auquel est associé un mécanisme de verrouillage. Le mécanisme de verrouillage peut comprendre un élément écrou (26), comme un écrou de cylindre, qui permet à un élément boulon associé (24) d'ajuster une charge de serrage et une position tout en serrant les composants du joint mécanique. Cette flexibilité de réglage élimine ou réduit les contraintes de flexion indésirables dans l'élément boulon, permettant ainsi un plus grand couple de translation directement sur l'anneau de verrouillage. L'écrou de cylindre permet à plus de matériau de rester dans la bague de verrouillage, ce qui permet d'obtenir une résistance globale supplémentaire par rapport à un élément de verrouillage classique. La bague de verrouillage comprend également une pluralité de régions flexibles sous la forme d'encoches (80) qui permettent à la bague de verrouillage de fléchir lorsque le corps principal (32, 50) est serré autour de l'arbre (12).
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