PZ Cussons has filed a patent for a railroad freight car draft gear that includes a friction clutch assembly with friction members and an actuator. The gear also has a spring assembly for absorbing and dissipating energy, and recesses on the mating surfaces. The patent claims a preformed friction modifying insert that is pressed into each recess to facilitate movement of the clutch assembly during operation. GlobalData’s report on PZ Cussons gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on PZ Cussons, was a key innovation area identified from patents. PZ Cussons's grant share as of September 2023 was 55%. Grant share is based on the ratio of number of grants to total number of patents.
The patent is filed for a friction clutch assembly for a railroad freight car draft gear
A recently filed patent (Publication Number: US20230249720A1) describes a new design for a railroad freight car draft gear. The draft gear includes a friction clutch assembly with friction members that slide along mating surfaces. A spring assembly is included to absorb and dissipate energy. The patent claims that the draft gear includes recesses on the mating surfaces, and preformed friction modifying inserts are pressed into these recesses. These inserts have elongated legs with projections that facilitate the movement of the friction clutch assembly during operation of the draft gear.
The patent also claims that the inserts can be made from various materials, including brass alloy, bronze alloy, lead alloy, and impregnated plastics. The leg of each insert has parallel surfaces joined by an outer end and a convex inner end. The projections on each insert consist of raised ribs that extend radially outward from the leg. These ribs are offset from each other and extend only partially around the leg. Some inserts also include a second elongated leg with projections.
Another aspect of the patent describes a draft gear with an elongated housing and a friction clutch assembly arranged within it. The housing has recesses on its internal surface, and preformed friction modifying inserts are pressed into these recesses. The inserts have elongated and curved legs that match the curvature of the internal surface of the housing. The inserts also have an outer end that extends the length of the insert and is adjacent to the closed end of the recess, and an inner end with a convex profile that initially projects past the curved internal surface of the housing.
Overall, this patent proposes a new design for a railroad freight car draft gear that includes preformed friction modifying inserts to improve the performance of the friction clutch assembly. The inserts can be made from various materials and have specific features, such as raised ribs and curved legs, to enhance their functionality. This design aims to facilitate the reciprocatory movements of the friction clutch assembly during the operation of the draft gear.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
