US 2023/0407986 A1Published application

Opertator insert and related systems and methods for improved wear resistance

AssigneeDuraseat LLC

InventorLogan T. Smith

Life of this patent

Estimating the term…

Loading patent…

Abstract

Known operator housings include a vertical groove in an internal bore adapted for engagement with a roller. Over time the groove will fail as the roller exits the groove resulting in a gouge in the internal bore. Operator housings are disclosed in which a recess is disposed in the internal bore of the operator housing. The recess is adapted to receive a removable, arcuate-shaped insert. The insert may include a groove section adapted for longitudinal alignment with the groove in the internal bore of the operator housing. The groove section will be located within the internal bore such that the roller will exit the groove section of the insert. If the roller causes damage, it will be to the insert, not to the operator housing. If such damage occurs, the damaged insert can be removed and replaced with a new insert. This avoids scrapping or refurbishing damaged operator housing.

Claims20

Dependent claims

An insert for an operator housing comprising:

a first arcuate section, a second arcuate section, and a groove section disposed between the first arcuate section and the second arcuate section,
the first arcuate section including a first inner surface defined by a first inner radius R1, and a first outer surface defined by a first outer radius R2, the first arcuate section defining a generally curved wall having a thickness equal to the difference between R1 and R2,
the second arcuate section including a second inner surface defined by a second inner radius R4, and a second outer surface having a second outer radius R5, the second arcuate section defining a generally curved wall having a thickness equal to the difference between R4 and R5, and
the groove section including a third inner surface defined by a third inner radius R7, the third inner surface defining a concave trough, a left side of the concave trough transitioning into a right side of the first inner surface on the first arcuate section at a first transition, a right side of the concave trough transitioning into a left side of the second inner surface of the second arcuate section, the groove section including a third outer surface defined by a third outer radius R9, the groove section defining a generally curved wall having a thickness equal to the difference between R7 and R9, a left side of the third outer surface transitioning into a right side of the first outer surface on the first arcuate section, and a right side of the third outer surface transitioning into a left side of the second outer surface on the second arcuate section.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 18/211,251Filed 17 Jun 2023
Priority: 17 Jun 2022
Published: 21 Dec 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

F16K 31/508
With screw-spindle or internally threaded actuating means: the actuating element being rotatable, non-rising, and driving a non-rotatable…
F16K 31/528
With crank, eccentric, or cam: with pin and slot
F16K 25/04
Details relating to contact between valve members and seats: arrangements for preventing erosion, not otherwise provided for
F16K 27/00
Construction of housing