Patent US4574228A successfully refreshed from Google Patents.
Patent US3789870A successfully refreshed from Google Patents.
US3789870A
Expired / Lapsed
US
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Disposable valve construction and method of making seals
Assignee: Nibco Inc
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Filing: 1971-11-11
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Granted: 1974-02-05
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Expires: 1991-11-11
Abstract
Abstract A disposable valve construction and method of making seals in which the valve member is made from a flexible material, such as plastic. A valve housing member is provided with a longitudinal bore which communicates with a fluid to be dispensed. The housing member is provided with a countersunk portion to receive therein a hollow valve member. The latter is provided with a lower cylindrical portion, the bottom surface of which functions as a valve seat for a centrally disposed stem member. The outer surface of the lower cylindrical portion provides an interference fit for the bore of the housing member. The hollow valve body member is threaded into the countersunk housing until an interference seal is initially established with the bore of the housing member. The valve body member is threaded further causing flexing of the valve body to occur as an integral annular skirt portion of the valve body engages the shoulder at the bottom of the countersink which serves as a valve seat therefor. Continued threading of the valve body establishes a controlled tension on the valve housing member by an interference in length between the valve member and the housing member between the valve seat and a bottoming out position. While the countersunk portion is threaded to receive the valve body member, the bottom of the countersink is unthreaded and is positioned to support the annular skirt portion of the valve body and prevents radial movement thereof which would cause leaking under heavy pressures.
Inventors
- 👤 R Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:41
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/10; F16K11/20; F16K27/00; F16K27/02; F16K27/0263; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6966; Y10T137/6969; Y10T137/6977; Y10T137/7504; Y10T137/7613
Claims Analysis
Total Claims: 36
Claim 1
Independent Claim
220 words
A valve construction which comprises: a. a main housing having a threaded countersunk portion with the bottom of the countersink defining a shoulder which constitutes a first valve seat, 1. said main housing further having a bore extending beneath said valve seat and communicating with a fluid to be dispensed, b. a hollow valve body member threadedly received in said threaded countersunk portion of said main housing, 1. said hollow valve body member having a lower hollow cylindrical portion the bottom surface of which provides a second valve seat, 2. said hollow cylindrical portion having a cylindrical external surface which provides an interference valve sealing surface when inserted into engagement with said bore of said main housing, c. a stem member threadedly received within said hollow valve body member, 1. said stem member having a valve disk at one end selectively movable into and out of engagement with said second valve seat on said hollow valve body member, d. and said hollow valve body member having a flanged annular skirt portion integral therewith, the lowermost surface of which constitutes a second valve sealing surface, e. said second valve sealing surface being brought into engagement with said first valve seat by continued insertion of said lower cylindrical portion of said hollow valve body member into said bore of said main housing.
Claim 2
Dependent Claim
220 words
A valve construction which comprises: a. a main housing having a threaded countersunk portion with the bottom of the countersink defining a shoulder which constitutes a first valve seat, 1. said main housing further having a bore extending beneath said valve seat and communicating with a fluid to be dispensed, b. a hollow valve body member threadedly received in said threaded countersunk portion of said main housing, 1. said hollow valve body member having a lower hollow cylindrical portion the bottom surface of which provides a second valve seat, 2. said hollow cylindrical portion having a cylindrical external surface which provides an interference valve sealing surface when inserted into engagement with said bore of said main housing, c. a stem member threadedly received within said hollow valve body member, 1. said stem member having a valve disk at one end selectively movable into and out of engagement with said second valve seat on said hollow valve body member, d. and said hollow valve body member having a flanged annular skirt portion integral therewith, the lowermost surface of which constitutes a second valve sealing surface, e. said second valve sealing surface being brought into engagement with said first valve seat by continued insertion of said lower cylindrical portion of said hollow valve body member into said bore of said main housing.
Claim 3
Dependent Claim
39 words
said hollow cylindrical portion having a cylindrical external surface which provides an interference valve sealing surface when inserted into engagement with said bore of said main housing, c. a stem member threadedly received within said hollow valve body member,
Claim 4
Dependent Claim
39 words
said hollow cylindrical portion having a cylindrical external surface which provides an interference valve sealing surface when inserted into engagement with said bore of said main housing, c. a stem member threadedly received within said hollow valve body member,
Claim 5
Dependent Claim
26 words
A valve construction as defined in claim 1 including means for limiting radial movement of said flanged annular skirt portion of said hollow valve body member.
Claim 6
Dependent Claim
31 words
said hollow valve body member carrying an abutment means engageable with a fixed reference point for limiting the threaded insertion of said hollow valve body member into said main housing member,
Claim 7
Dependent Claim
31 words
said hollow valve body member carrying an abutment means engageable with a fixed reference point for limiting the threaded insertion of said hollow valve body member into said main housing member,
Claim 8
Dependent Claim
27 words
said hollow valve body member having an annular groove to receive an annular sealing member adjacent the open mouth of said countersink in said main housing member,
Claim 9
Dependent Claim
27 words
said hollow valve body member having an annular groove to receive an annular sealing member adjacent the open mouth of said countersink in said main housing member,
Claim 10
Dependent Claim
31 words
said hollow valve body member carrying an abutment means engageable with a fixed reference point for limiting the threaded insertion of said hollow valve body member into said main housing member,
Claim 11
Dependent Claim
31 words
said hollow valve body member carrying an abutment means engageable with a fixed reference point for limiting the threaded insertion of said hollow valve body member into said main housing member,
Claim 12
Dependent Claim
51 words
and said abutment means being spaced a predetermined distance above said shoulder of said main housing to limit the amount of compression of said hollow valve body member and the amount of tension exerted on said main housing member, c. a stem member threadedly received within said hollow valve body member,
Claim 13
Dependent Claim
51 words
and said abutment means being spaced a predetermined distance above said shoulder of said main housing to limit the amount of compression of said hollow valve body member and the amount of tension exerted on said main housing member, c. a stem member threadedly received within said hollow valve body member,
Claim 14
Dependent Claim
38 words
said abutment means being spaced a predetermined distance above said shoulder of said main housing to limit the amount of compressIon of said hollow valve body member and the amount of tension exerted on said main housing member,
Claim 15
Dependent Claim
38 words
said abutment means being spaced a predetermined distance above said shoulder of said main housing to limit the amount of compressIon of said hollow valve body member and the amount of tension exerted on said main housing member,
Claim 16
Dependent Claim
38 words
A valve construction as defined in claim 2 wherein said countersunk portion has a cylindrical wall the lowermost portion of which is unthreaded and is positioned closely adjacent said flanged annular skirt portion for limiting radial movement thereof.
Claim 17
Dependent Claim
102 words
said hollow valve body member having a flanged annular skirt portion integral therewith, the lowermost surface of which constitutes a second valve sealing surface, i. said second valve sealing surface being brought into sealing engagement with said shoulder of said main housing by continued insertion of said lower cylindrical portion of said hollow valve body member into the bore of said main housing member during which time said annular sealing member adjacent the mouth of said countersink is being compressed within said annular groove of said hollow valve body member, c. a stem member threadedly received within said hollow valve body member,
Claim 18
Dependent Claim
102 words
said hollow valve body member having a flanged annular skirt portion integral therewith, the lowermost surface of which constitutes a second valve sealing surface, i. said second valve sealing surface being brought into sealing engagement with said shoulder of said main housing by continued insertion of said lower cylindrical portion of said hollow valve body member into the bore of said main housing member during which time said annular sealing member adjacent the mouth of said countersink is being compressed within said annular groove of said hollow valve body member, c. a stem member threadedly received within said hollow valve body member,
Claim 19
Dependent Claim
41 words
A valve construction as defined in claim 3 wherein said unthreaded lowermost portion of said cylindrical wall of said countersunk portion is at least as high as the length of said flanged annular skirt portion of said hollow valve body member.
Claim 20
Dependent Claim
51 words
said outwardly extending annular flange member having a downwardly extending annular skirt portion the lowermost surface of which contacts the shoulder of said main housing member prior to engagement of said abutment means with said fixed reference point, c. and a stem member threadedly received within said hollow valve body member,
Claim 21
Dependent Claim
51 words
said outwardly extending annular flange member having a downwardly extending annular skirt portion the lowermost surface of which contacts the shoulder of said main housing member prior to engagement of said abutment means with said fixed reference point, c. and a stem member threadedly received within said hollow valve body member,
Claim 22
Dependent Claim
20 words
A valve construction as defined in claim 1 wherein said hollow valve body member is made from a plastic material.
Claim 23
Dependent Claim
90 words
A valve construction as defined in claim 1 a. wherein said stem member is provided with handle receiving means at one end opposite from the end having said valve disk, b. and wherein said hollow valve body member is provided with port means located between said first valve seat and the threaded securement of said hollow valve body member to said stem member to permit fluids which enter said hollow valve body member between said stem member and said first valve seat to exit from said hollow valve body member.
Claim 24
Dependent Claim
36 words
A valve construction as defined in claim 6 wherein said hollow valve body member is threaded by threads of one hand to said countersunk portion and by threads of the other hand to said stem member.
Claim 25
Dependent Claim
26 words
A valve construction as defined in claim 6 including means for limiting radial movement of said flanged annular skirt portion of said hollow valve body member.
Claim 26
Dependent Claim
38 words
A valve construction as defined in claim 8 wherein said countersunk portion has a cylindrical wall the lowermost portion of which is unthreaded and is positioned closely adjacent said flanged annular skirt portion for limiting radial movement thereof.
Claim 27
Dependent Claim
41 words
A valve construction as defined in claim 9 wherein said unthreaded lowermost portion of said cylindrical wall of said countersunk portion is at least as high as the length of said flanged annular skirt portion of said hollow valve body member.
Claim 28
Dependent Claim
20 words
A valve construction is defined in claim 6 wherein said hollow valve body member is made from a plastic material.
Claim 29
Dependent Claim
29 words
A valve construction which comprises: a. a plastic main housing having a threaded countersunk portion with the bottom of the countersink defining a shoulder which constitutes a valve seat,
Claim 30
Dependent Claim
29 words
A valve construction which comprises: a. a plastic main housing having a threaded countersunk portion with the bottom of the countersink defining a shoulder which constitutes a valve seat,
Claim 31
Dependent Claim
28 words
A valve construction comprising: a. a plastic main housing having a threaded countersunk portion with the bottom of the countersink defining a shoulder which constitutes a valve seat,
Claim 32
Dependent Claim
28 words
A valve construction comprising: a. a plastic main housing having a threaded countersunk portion with the bottom of the countersink defining a shoulder which constitutes a valve seat,
Claim 33
Dependent Claim
50 words
A valve construction as defined in claim 13, wherein said outwardly extending annular flange has a weakened portion which permits flexing of said annular flange thereby permitting the further insertion of said hollow valve body member into said main housing member until said abutment means contacts said fixed reference point.
Claim 34
Dependent Claim
26 words
A valve construction as defined in claim 14, including means for limiting radial movement of said flanged annular skirt portion of said hollow valve body member.
Claim 35
Dependent Claim
36 words
A valve construction which comprises: a. a main housing having a threaded countersunk portion with the bottom of the countersink defining a shoulder which constitutes a valve seat and the top thereof constituting an open mouth,
Claim 36
Dependent Claim
36 words
A valve construction which comprises: a. a main housing having a threaded countersunk portion with the bottom of the countersink defining a shoulder which constitutes a valve seat and the top thereof constituting an open mouth,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |