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US4540154A Expired / Lapsed US ⏱️ 0.0 years remaining

Solenoid valve

Assignee: Parker Hannifin Customer Support Inc
•
Filing: 1984-12-11
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Granted: 1985-09-10
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Expires: 2004-12-11
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Abstract

Abstract A cartridge solenoid poppet valve (10) arranged to use a single size pilot valve (31) with any one of a set of a plurality of different size sets of valve seat members (14) and poppet valves (24). Pilot guides (175) are provided having different transverse extents to accommodate such different size valve members. The valve further includes a flatted pilot guide (32) defining flow passages communicated between a transfer chamber (35) and a pilot valve chamber (30) in which the pilot valve (31) is disposed. A T-slot (58) is provided in the solenoid plunger (38) extending fully diametrically thereacross and the pilot valve includes a T-shaped connecting head (71) received therein. The plunger (38) and plug (41) define cooperating stop surfaces (67,70) for maintaining a small spacing between the plunger and plug at all times. Solenoid structure (53) includes a parallelepiped frame (46) defining a space with the solenoid coil (44) received therein. The portion of the coil space not occupied by the coil is filled with a set synthetic resin. The structure includes a nut (52) threaded to a connecting portion (79) of a plug (41) to bear forcibly against a flange (51) on a washer (50) urging the washer axially outwardly against the solenoid frame (46) and thereby urging the frame outwardly against an adapter (11) arranged to be threaded to a port (73). The outer housing (49) is a configuration generally similar to the external configuration of the frame.

Inventors

  • 👤 Abel E. Kolchinsky
  • 👤 Shaukat Kazi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 09:39
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/16; F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/40; F16K31/406; F16K31/408; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/5987

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 240 words
In a fluid flow control valve having a valve body and a movable valve member, solenoid structure for selectively positioning the valve member comprising: an annular coil; a tubular, rigid, one-piece frame having a sidewall and substantially planar parallel inner and outer end walls defining a coil space, the coil being centered therebetween to extend axially parallel to the sidewall; a guide tube coaxially within said coil and having a portion spaced radially of and confronting said outer end wall; a magnetic plunger slidable axially within said guide tube and being connected to said valve; an adapter removably secured to the valve body and having an axially inwardly projecting annular boss abutting the frame outer end wall; an annular washer abutting the frame inner end wall and having an annular axially inturned, radially inner flange; a nut; threaded plug means secured to the inner end of said guide tube and having an axially inner end projecting through said washer and defining an externally threaded connecting portion, said nut being threaded to said connecting portion to bear forcibly against an inner distal end of said flange and urge said washer axially outwardly against said inner end of the frame, and thereby urge said outer end of the frame axially outwardly against said adapter boss to lock the structure in coaxially assembled relationship; and an outer housing encapsulating the frame and retaining said washer in association with said frame inner end wall.
Claim 2
Dependent Claim 240 words
In a fluid flow control valve having a valve body and a movable valve member, solenoid structure for selectively positioning the valve member comprising: an annular coil; a tubular, rigid, one-piece frame having a sidewall and substantially planar parallel inner and outer end walls defining a coil space, the coil being centered therebetween to extend axially parallel to the sidewall; a guide tube coaxially within said coil and having a portion spaced radially of and confronting said outer end wall; a magnetic plunger slidable axially within said guide tube and being connected to said valve; an adapter removably secured to the valve body and having an axially inwardly projecting annular boss abutting the frame outer end wall; an annular washer abutting the frame inner end wall and having an annular axially inturned, radially inner flange; a nut; threaded plug means secured to the inner end of said guide tube and having an axially inner end projecting through said washer and defining an externally threaded connecting portion, said nut being threaded to said connecting portion to bear forcibly against an inner distal end of said flange and urge said washer axially outwardly against said inner end of the frame, and thereby urge said outer end of the frame axially outwardly against said adapter boss to lock the structure in coaxially assembled relationship; and an outer housing encapsulating the frame and retaining said washer in association with said frame inner end wall.
Claim 3
Dependent Claim 24 words
The valve structure of claim 1 wherein said housing comprises a housing molded of synthetic resin encapsulating said frame with said washer flange exposed.
Claim 4
Dependent Claim 27 words
The valve structure of claim 1 wherein said coil defines a length and said plug means extends within said coil substantially one-half the length of the coil.
Claim 5
Dependent Claim 19 words
The valve structure of claim 1 wherein said assembled structure is readily disassembled upon threaded removal of said nut.
Claim 6
Dependent Claim 16 words
The valve structure of claim 1 wherein a set synthetic resin is provided in said frame.
Claim 7
Dependent Claim 13 words
The valve structure of claim 1 wherein said housing comprises a parallelepiped housing.
Claim 8
Dependent Claim 14 words
The valve structure of claim 1 wherein said frame and housing are parallelepiped shaped.
Claim 9
Dependent Claim 51 words
The valve structure of claim 1 wherein the inner diameters of the coil, frame, and washer are larger than the outer diameters of the guide tube and plug, whereby free axial movement of the coil, frame, and washer as an assembly may be effected by said nut engaging said washer flange.

References Cited (Backward Citations)

US951766A Cited
US2383411A Cited
US3082359A Cited
US4055823A Cited
US4341241A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-09-09 1989-03-11 1989-09-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-09-09 1993-03-11 1993-09-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-09-09 1997-03-11 1997-09-10 $7700.00 Window Closed / Lapsed

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