Patents Assigned to Lifting Technologies, Inc.
  • Patent number: 12180799
    Abstract: A stuffing box for sealing the end of a rotatable rod is disclosed. The stuffing box includes a sleeve adapted to concentrically receive a portion of the rod therethrough and a tubular pipe concentrically arranged within the sleeve, the rod passing generally concentrically through the pipe, the pipe being in annular spaced relation to the sleeve and the rod. One or more ring seals are arranged between the pipe and the sleeve to prevent the flow of well fluids into the annulus between the sleeve and the pipe. An annular fluid chamber is defined between the sleeve and the pipe below the ring seals. During normal operation, the fluid chamber is pressurized to apply a pressure to the one or more ring seals. One or more uni-directional seals are arranged below the fluid chamber and configured to permit fluid flow into the fluid chamber.
    Type: Grant
    Filed: December 14, 2021
    Date of Patent: December 31, 2024
    Assignee: Oil Lift Technology Inc.
    Inventor: Ross Willard Senger
  • Patent number: 11898412
    Abstract: A rod lock out clamp includes a housing having a central bore for receiving a rod in spaced relation therethrough and clamp members in the housing for grippingly and frictionally engaging the rod in the bore. At least one of the clamp members has an inner end and a recess in the inner end, the recess having a profile with an arcuate portion having a radius of curvature that reduces from a maximum radius to a minimum radius. Manipulating means are coupled to the housing and the clamp members for moving the clamp members between a rod gripping position and a retracted position.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: February 13, 2024
    Assignee: Oil Lift Technology Inc.
    Inventor: Ross Willard Senger
  • Publication number: 20230373759
    Abstract: The present disclosure relates to laminated hook including a fastening system. The hook is formed by a plurality of plates laminated together with a mechanical fastening system. The fastening system utilized to laminate the plates together to form the laminated hook includes a bolt and a nut. According to certain aspects of the present teaching, the nut is a barrel nut. According to further aspects of the present teaching, the hook is a laminated ladle hook. A process for forming a laminated hook is also provided.
    Type: Application
    Filed: May 17, 2023
    Publication date: November 23, 2023
    Applicant: Mazzella Lifting Technologies, Inc.
    Inventors: Marc Nader, Clyde Shetler
  • Patent number: 11512999
    Abstract: A draft survey apparatus for gauging a barge by determining a weight of bulk materials loaded and discharged from the barge in water wherein the water level is provided. The draft survey apparatus includes a light source for emitting photons radially outward from the light source, a receiver for receiving the photons reflected off of the barge and surface, the receiver operable to sense a return angle of the photons, and a processor operable to determine a position of the objects and surfaces in three dimensional space based on the return angle of the photons and a time delay of photons between emission and receipt. The processor is operable to determine the weight of the bulk materials on the barge based on a height of barge above the water level.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: November 29, 2022
    Assignee: Mazzella Lifting Technologies, Inc.
    Inventors: Tom D. Schiller, Frederic Katz, Daniel Kent
  • Patent number: 10717636
    Abstract: A fork-carriage apparatus for a lift truck includes: (a) a mounting frame assembly mountable to the lift truck for vertical movement; (b) a side shifter frame assembly slidably mounted to the mounting frame assembly; (c) a pivot frame assembly pivotably mounted to the side shifter frame assembly for translating therewith; (d) a fork assembly mounted to the pivot frame assembly for pivoting therewith; and (e) at least one load-pulling connector mounted to the pivot frame assembly and configured to connect a load to the fork-carriage apparatus for pulling the load.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: July 21, 2020
    Assignee: Lift Technologies, Inc.
    Inventor: Jody Addicott
  • Publication number: 20200223669
    Abstract: An apparatus for lifting and manipulating a heavy load by way of at least one pair of tongs and at least one hydraulic cylinder is disclosed. The load lifting apparatus may be configured such that it includes a first linkage, consisting of two pivotal linkage members, and a second linkage, having two pivotal linkage members. The load lifting apparatus may further have a set of tongs which includes two tong arms, and a hydraulic cylinder capable of actuating about one of the pivot points of the linkages. This configuration allows for the distance between the two tong arms to be adjusted according to the relative size of the load being engaged by the load lifting apparatus. A controller may actuate the hydraulic cylinder to adjust the distance between the tong arms.
    Type: Application
    Filed: January 6, 2020
    Publication date: July 16, 2020
    Applicant: Mazzella Lifting Technologies, Inc.
    Inventor: Tony D'Angela
  • Patent number: 10619441
    Abstract: Embodiments of a wellhead assembly have a tubular body with a removable bottom cap to house a tubing rotator comprising a multi-enveloping worm gear assembly which provides sufficient torque to rotate tubing strings in deep and/or deviated wellbores. The bottom cap is supported on a wellhead having a dognut for supporting a production string therefrom in a wellbore. The bottom cap rotatably supports a mandrel and multi-enveloping worm wheel thereon, the mandrel being connected to the dognut and tubing string for co-rotation therewith. The tubular body supports a multi-enveloping worm for engagement with the worm wheel when the tubular body is lowered axially onto the bottom cap. When the tubular body and worm are lifted axially from the bottom cap, the worm wheel and mandrel are exposed for repair or replacement without need to pull the production string from the wellbore.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: April 14, 2020
    Assignee: Oil Lift Technology Inc.
    Inventors: Ross Senger, Denis Blaquiere, Ramamurthy Narasimhan, Manjunath Devalapalli Prakash Reddy, Manjunath Jayanthi Narayana Setty, Santhosha Singanahalli Malleshappa, Kogan Lee
  • Patent number: 10173276
    Abstract: Provided is an apparatus for preparing wire rope having a stand; a first cross-member; a second cross-member; a first clamp arm; a second clamp arm; a first clamp; a second clamp; an adjustment wheel; an adjustment screw; and an adjustment gear; wherein the second cross-member is at least partially contained within the first cross-member; wherein the first clamp is disposed at the distal end of the first clamp arm, the second clamp is disposed at the distal end of the second clamp arm, and wherein the first and second clamp arm are spaced from each other; and wherein the distance between the first and second clamp arm is adjustable. Also provided is a method of use for the same.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: January 8, 2019
    Assignee: Mazzella Lifting Technologies, Inc.
    Inventors: Dan Sherwood, Matt Mazzella
  • Publication number: 20180363403
    Abstract: A pump drive head for a progressing cavity pump comprises a top mounted stuffing box rotatably disposed around a compliantly mounted standpipe with a self or manually adjusting pressurization system for the stuffing box. To prevent rotary and vertical motion of the polish rod while servicing the stuffing box, a polished rod lock-out clamp is provided with the pump drive head integral with or adjacent to a blow-out-preventer which can be integrated with the pump drive head to save space and cost. A centrifugal backspin braking system located on the input shaft and actuated only in the backspin direction and a gear drive between the input shaft and output shaft are provided.
    Type: Application
    Filed: August 22, 2018
    Publication date: December 20, 2018
    Applicant: Oil Lift Technology Inc.
    Inventor: Vern A. Hult
  • Patent number: 10087696
    Abstract: A pump drive head for a progressing cavity pump comprises a top mounted stuffing box rotatably disposed around a compliantly mounted standpipe with a self or manually adjusting pressurization system for the stuffing box. To prevent rotary and vertical motion of the polish rod while servicing the stuffing box, a polished rod lock-out clamp is provided with the pump drive head integral with or adjacent to a blow-out-preventer which can be integrated with the pump drive head to save space and cost. A centrifugal backspin braking system located on the input shaft and actuated only in the backspin direction and a gear drive between the input shaft and output shaft are provided.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: October 2, 2018
    Assignee: Oil Lift Technology Inc.
    Inventor: Vern A. Hult
  • Patent number: 9738494
    Abstract: Provided is a safety lighting system for an overhead crane comprising a laser generator capable of generating a laser signal; and a crane control system having a programmable logic circuit; wherein the laser generator is integrated with the crane control system; and wherein the laser generator is operable to project a laser signal onto a surface corresponding to the position of the crane or crane components and a method of using the safety lighting system to determine when an object has crossed into a designated safety zone.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: August 22, 2017
    Assignee: Mazzella Lifting Technologies, Inc.
    Inventors: Mark Shubel, Kenneth Wright
  • Patent number: 9322238
    Abstract: A pump drive head for a progressing cavity pump comprises a top mounted stuffing box rotatably disposed around a compliantly mounted standpipe with a self or manually adjusting pressurization system for the stuffing box. To prevent rotary and vertical motion of the polish rod while servicing the stuffing box, a polished rod lock-out clamp is provided with the pump drive head integral with or adjacent to a blow-out-preventer which can be integrated with the pump drive head to save space and cost. A centrifugal backspin braking system located on the input shaft and actuated only in the backspin direction and a gear drive between the input shaft and output shaft are provided.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: April 26, 2016
    Assignee: Oil Lift Technology Inc.
    Inventor: Vern A. Hult
  • Patent number: 9027717
    Abstract: A cam assisted centrifugal brake or clutch system provides increased mechanical advantage to improve the output torque relative to prior art devices such as leading brake shoes. The brake or clutch engagement is cammed radially outwardly to engage a brake housing in one direction and guided to a disengaged position in the other direction. Centrifugal forces retain the brake in the disengaged position. Embodiments of the present invention are applied as a backspin braking system that is incorporated into a drive head for a progressing cavity pump drive system.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: May 12, 2015
    Assignee: Oil Lift Technology Inc.
    Inventor: Vern A Hult
  • Patent number: 9016362
    Abstract: A pump drive head for a progressing cavity pump comprises a top mounted stuffing box rotatably disposed around a compliantly mounted standpipe with a self or manually adjusting pressurization system for the stuffing box. To prevent rotary and vertical motion of the polish rod while servicing the stuffing box, a polished rod lock-out clamp is provided with the pump drive head integral with or adjacent to a blow-out-preventer which can be integrated with the pump drive head to save space and cost. A centrifugal backspin braking system located on the input shaft and actuated only in the backspin direction and a gear drive between the input shaft and output shaft are provided.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: April 28, 2015
    Assignee: Oil Lift Technology Inc.
    Inventor: Vern A. Hult
  • Patent number: 8544923
    Abstract: An apparatus and method for a lifting assembly to lift an object using a lifting device are provided. The lifting assembly comprises of an upper lifting bracket and a lower lifting bracket which are used to lift the object. The lifting brackets are adjustable such that they can be adapted to lift a number of different objects having different assemblies with different bolt patterns. The adjustability feature is provided by incorporating at least one cam into the lifting brackets.
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: October 1, 2013
    Assignee: Engineered Lifting Technologies, Inc.
    Inventor: Jeremy P. Inda
  • Patent number: 8544924
    Abstract: A lifting bracket for a lifting assembly to lift a cylindrical object having an annular flange with a plurality of spaced-apart holes formed therein using a lifting device is provided. The bracket includes a flange attachment piece having at least one adjustable hole assembly for aligning with at least one hole of said plurality of spaced-apart holes on the flange such that the bracket may be used to lift objects having spaced-apart holes of varying distances. The bracket also includes a hoist ring for receiving a wire rope and a swivel device having a hoist ring connection loop. The swivel device freely rotates about a pin and the hoist ring freely pivots when the object is being lifted from a horizontal position to a vertical position.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: October 1, 2013
    Assignee: Engineered Lifting Technologies, Inc.
    Inventor: Jeremy Inda
  • Patent number: 8034160
    Abstract: This invention relates to gas generators and methods for their use. In some embodiments, the invention relates to devices and methods of generating a gas enriched in a specific component. In other embodiments, the devices are configured to pressurize and regulate the temperature of atmospheric air prior to passing said air through a selectively permeable gas membrane. In further embodiments, a device is also configured to preheat said selectively permeable gas membrane.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: October 11, 2011
    Assignee: Nitro-Lift Technologies, Inc.
    Inventor: Danny Daniels
  • Patent number: 7044217
    Abstract: Progressive cavity (PC) pump drive heads require a stuffing box to seal crude oil from leaking onto the ground where the polish rod passes from the crude oil passage in the wellhead to the drive head. Because crude oil typically contains fine sand particles, alignment between the stuffing box and the polished rod is imperfect, and PC drive heads run continuously, it is very difficult make stuffing boxes that last as long as desirable by oil production companies. By using a flexibly mounted standpipe in various configurations, around which is a bearing supported shaft carrying the sealing means, long term durability of the stuffing box can be achieved. By using a pressurization system such that the pressure output exceeds the pressure at the wellhead, stuffing box seal life can be extended and external leakage from the stuffing box can be eliminated. A double wall standpipe may be provided in some applications as part of the pressurization system.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: May 16, 2006
    Assignee: Oil Lift Technology, Inc.
    Inventor: Vern Arthur Hult
  • Publication number: 20050045323
    Abstract: A pump drive head for a progressing cavity pump comprises a top mounted stuffing box rotatably disposed around a compliantly mounted standpipe with a self or manually adjusting pressurization system for the stuffing box. To prevent rotary and vertical motion of the polish rod while servicing the stuffing box, a polished rod lock-out clamp is provided with the pump drive head integral with or adjacent to a blow-out-preventer which can be integrated with the pump drive head to save space and cost. A centrifugal backspin braking system located on the input shaft and actuated only in the backspin direction and a gear drive between the input shaft and output shaft are provided.
    Type: Application
    Filed: October 7, 2004
    Publication date: March 3, 2005
    Applicant: Oil Lift Technology Inc.
    Inventor: Vern Hult
  • Publication number: 20050011642
    Abstract: Progressive cavity (PC) pump drive heads require a stuffing box to seal crude oil from leaking onto the ground where the polish rod passes from the crude oil passage in the wellhead to the drive head. Because crude oil typically contains fine sand particles, alignment between the stuffing box and the polished rod is imperfect, and PC drive heads run continuously, it is very difficult make stuffing boxes that last as long as desirable by oil production companies. By using a flexibly mounted standpipe in various configurations, around which is a bearing supported shaft carrying the sealing means, long term durability of the stuffing box can be achieved. By using a pressurization system such that the pressure output exceeds the pressure at the wellhead, stuffing box seal life can be extended and external leakage from the stuffing box can be eliminated. A double wall standpipe may be provided in some applications as part of the pressurization system.
    Type: Application
    Filed: August 11, 2003
    Publication date: January 20, 2005
    Applicant: Oil Lift Technology Inc.
    Inventor: Vern Hult