Cylinder piston rod coupler

• US 4,511,276 A
• Filed: 05/04/1983
• Issued: 04/16/1985
• Est. Priority Date: 05/04/1983
• Status: Expired due to Fees

• Current Assignee: Randy William Patterson
• Original Assignee: Kingsley A. Doutt
• Inventors: Doutt, Kingsley A.
• Primary Examiner(s): Kundrat, Andrew V.
• Application Number:
  US06/491,525
• Time in Patent Office: 713 Days
• Field of Search: 403/90, 403/77, 403/76, 403/137, 403/135, 403/140, 403/125, 403/126, 403/122, 403/134, 464/133, 464/150, 464/153, 464/106, 464/19
• US Class Current: 403/77
• CPC Class Codes: F16C 11/0661 the two co-operative parts each having both convex and concave interfaces
• CPC Class Codes: Y10T 403/32204 with threaded joint
• CPC Class Codes: Y10T 403/32737 including liner, shim, or discrete seat

Abstract

A cylinder piston rod coupler for misaligned shafts attaches one shaft to a housing and an annular flange on a stud attached to the other shaft is positioned in the housing between a pair of guide members. A retaining ring in the housing holds the guide members and stud in movable relation and a floating seal closes the housing about the stud and retaining ring. The guide members and the stud are impregnated with TEFLON so as to form slippery surfaces thereon.

Claims

1. An improvement in a coupling for misaligned shafts having a housing adapted to be attached to one of said shafts and a stud with an enlarged curved end portion attached to the other one of said shafts with the enlarged end portion of the stud movably caged in said housing between guide members therein by a retaining ring, the improvement comprising means for sealing said housing with respect to said other one of said shafts and secondary means forming slippery surfaces on said guide members and on said stud, said housing having a threaded socket in one side wall and an opening oppositely thereto, said guide members in said housing engaging the opposite sides of said enlarged curved end of said stud, said guide members having curved surfaces matching said opposite sides of said enlarged curved end of said stud, a retaining ring engaged in said opening in said housing, one side of said retaining ring having a first annular surface and a second annular surface spaced radially and sidewardly of said first annular surface, said retaining ring being engaged in said opening with said second annular surface engaging one of said guide members so as to hold said guide members with said curved end of said stud between said guide members, said stud extending through said retaining ring, said means for sealing said housing comprising a resilient sealing gland on said stud spaced with respect to said enlarged curved end of said stud and movably engaged between said first annular surface of said retaining ring and one of said guide members so as to be movable transversely of said housing with said stud.

2. The improvement in a coupling for misaligned shafts set forth in claim 1 and wherein said secondary means comprises a TEFLON coating impregnated in said engaging surfaces of said guide members and said enlarged curved end of said stud.

3. The improvement in a coupling for misaligned shafts set forth in claim 1 and wherein said housing is attached to said one shaft by a thread pattern formed on said one shaft and engaged in a threaded secondary opening in said housing in oppositely disposed relation to said opening and retaining ring therein.