公开(公告)号：US20240019293A1

公开(公告)日：2024-01-18

申请号：US18349079

申请日：2023-07-07

Applicant: Progress Mfg. LLC

Inventor： Jed K. Anderson ,  David F. Lundgreen ,  Jason R. Harper

IPC: G01G19/02 ,  G01G19/52 ,  B66F3/25

CPC classification number: G01G19/02 ,  G01G19/52 ,  B66F3/25

Abstract: A hydraulic jack having a piston, configured to lift at least a portion of a vehicle or trailer, and a housing, where the housing includes a high pressure fluid chamber configured to receive at least a portion of the piston, and where increasing fluid pressure within the high pressure chamber moves the piston further out of the housing. The hydraulic jack also includes a weight gauge attached to the housing and in fluid communication with the high pressure fluid chamber, wherein the weight gauge is configured and calibrated to measure and display the weight of the vehicle or trailer being lifted by the piston.

公开(公告)号：US20250001817A1

公开(公告)日：2025-01-02

申请号：US18344687

申请日：2023-06-29

Applicant: Progress Mfg. LLC

Inventor： Jed K. Anderson ,  David F. Lundgreen ,  Jason R. Harper

IPC: B60D1/06 ,  B60D1/28

Abstract: A trailer hitch including a tube having ball socket, a top plate connected to the tube, where the top plate includes an opening designed and configured to receive a hitch ball. The trailer hitch also includes a lower plate, where the top plate includes an opening designed and configured to receive a hitch ball, and where the lower plate is connected to the top plate via first and second sidewalls, and the top plate, lower plate and first and second sidewalls form a space. The trailer hitch further includes a slide plate positioned within the space and configured to slide between the top plate and lower plate, where the top plate includes an opening designed and configured to receive a hitch ball, and the slide plate may be configured to move between an open position and a closed position, where the open position enables a hitch ball to pass through the opening of the slide plate and the closed position prevents a hitch ball from passing through the opening in the slide plate.

公开(公告)号：US20240198743A1

公开(公告)日：2024-06-20

申请号：US18491671

申请日：2023-10-20

Applicant: Progress Mfg. LLC

Inventor： Jason Robert Harper ,  Raymond L. Conger ,  Joshua A. Jones ,  Jed K. Anderson

IPC: B60D1/06 ,  B60D1/24 ,  B60D1/34

CPC classification number: B60D1/06 ,  B60D1/247 ,  B60D1/345 ,  Y10T29/49826

Abstract: A trailer hitch system for equalizing trailer loads and reducing trailer sway. The trailer hitch system may include spring bars that may be attached to a hitch head using a trunnion style connection. The spring bars may be attached to the trailer using rigid brackets that reduce swinging of the spring bars. The rigid brackets having a plurality of contact points may include an upward extending portion for attaching to the trailer tongue, and a lateral extending portion for receiving the spring bars thereupon. The rigid brackets may include a spacing member and an attachment member.

公开(公告)号：US20240034112A1

公开(公告)日：2024-02-01

申请号：US18325925

申请日：2023-05-30

Applicant: Progress Mfg. LLC

Inventor： Jason Robert Harper ,  Raymond L. Conger ,  Joshua A. Jones ,  Jed K. Anderson

IPC: B60D1/24 ,  B60D1/34

CPC classification number: B60D1/247 ,  B60D1/345

Abstract: A trailer hitch system for equalizing trailer loads and reducing trailer sway. The trailer hitch system may include spring bars that may be attached to a hitch head using a trunnion style connection. The spring bars may be attached to the trailer using rigid brackets that reduce swinging of the spring bars. The rigid brackets having a plurality of contact points may include an upward extending portion for attaching to the trailer tongue, and a lateral extending portion for receiving the spring bars thereupon. The rigid brackets may include a spacing member and an attachment member.

公开(公告)号：US20240019292A1

公开(公告)日：2024-01-18

申请号：US17867603

申请日：2022-07-18

Applicant: Progress Mfg. LLC

Inventor： Jed K. Anderson ,  David F. Lundgreen ,  Jason R. Harper

IPC: G01G19/02 ,  B66F3/25 ,  G01G19/52

CPC classification number: G01G19/02 ,  B66F3/25 ,  G01G19/52

Abstract: A hydraulic jack having a piston, configured to lift at least a portion of a vehicle or trailer, and a housing, where the housing includes a high pressure fluid chamber configured to receive at least a portion of the piston, and where increasing fluid pressure within the high pressure chamber moves the piston further out of the housing. The hydraulic jack also includes a weight gauge attached to the housing and in fluid communication with the high pressure fluid chamber, wherein the weight gauge is configured and calibrated to measure and display the weight of the vehicle or trailer being lifted by the piston.