Metal working – Method of mechanical manufacture – Prime mover or fluid pump making
Patent
1996-08-08
1998-03-10
Solis, Erick R.
Metal working
Method of mechanical manufacture
Prime mover or fluid pump making
29888044, 92187, B23P 1100
Patent
active
057247331
ABSTRACT:
A method is provided for producing a piston assembly adapted for use in a hydraulic pump or motor and having an overall length shorter than previously known piston assemblies while maintaining a strong mechanical connection and a high, efficient volumetric output. The method includes the steps of forming a slipper with a spherical ball on one end; forming a piston having a body portion and a connecting portion, the connecting portion having a spherical bottom surface, a groove spaced from the bottom surface and a contoured portion having an angled outer surface and an inner surface; inserting the spherical ball into the cavity; forcing the contoured portion inwardly to place the inner surface into contact with the spherical ball and to substantially longitudinally align the outer surface of the piston body with the angled surface of the contoured portion; heat treating the piston to a predetermined hardness and depth; and finishing the total longitudinal length of the piston to a finished size.
REFERENCES:
patent: 3120816 (1964-02-01), Firth et al.
patent: 3589756 (1971-06-01), Pruvot
patent: 3787128 (1974-01-01), Maistrelli
patent: 4290181 (1981-09-01), Jackson
patent: 5469776 (1995-11-01), Martensen et al.
patent: 5490446 (1996-02-01), Engel
Engel William K.
Hinrichsen Michael H.
Savage Howard
Sherman Donald H.
Watts Kenneth R.
Burrows J. W.
Caterpillar Inc.
Solis Erick R.
LandOfFree
Method of producing a piston assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of producing a piston assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of producing a piston assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-129572