US3788557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid injection adaptor
Assignee: Spirolet Corp
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Filing: 1973-04-18
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Granted: 1974-01-29
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Expires: 1993-04-18
Abstract
Abstract A resiliently yieldable adaptor having a bore therethrough is provided with a liquid manifold passage at the inlet end thereof having a progressively diminishing depth to effect uniform flow of liquid through radial passages leading into the bore. Means are provided at the inlet end of the adaptor to insure centering of the hose coupling attached thereto.
Inventors
- 👤 M Breunsbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:48
CPC Classifications
B; B28; B28C; B28C5/00; B28C5/02; B28C5/026; B05; B05C; B05C11/00; E; E04; E04F; E04F21/00; E04F21/02; E04F21/06; E04F21/08; E04F21/12; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87571; Y10T137/87652; Y10T137/8766
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
119 words
An adaptor comprising: a body formed of a resiliently yieldable plastic material having a bore therethrough, an inlet end and an outlet end; a threaded opening communicating with said bore; an annular wall extending radially inwardly from the wall of said threaded opening toward said bore and having at least a portion thereof defining a seat; an inlet passage in said body; an annular manifold passage of a varying size for effecting a selected uniform rate of liquid flow therethrough; said manifold passage being spaced radially outwardly of said bore and communicating with said inlet passage; said annular wall and said seat defining flow control passage means adjacent said inlet end communicating between said manifold passage and said bore.
Claim 2
Dependent Claim
119 words
An adaptor comprising: a body formed of a resiliently yieldable plastic material having a bore therethrough, an inlet end and an outlet end; a threaded opening communicating with said bore; an annular wall extending radially inwardly from the wall of said threaded opening toward said bore and having at least a portion thereof defining a seat; an inlet passage in said body; an annular manifold passage of a varying size for effecting a selected uniform rate of liquid flow therethrough; said manifold passage being spaced radially outwardly of said bore and communicating with said inlet passage; said annular wall and said seat defining flow control passage means adjacent said inlet end communicating between said manifold passage and said bore.
Claim 3
Dependent Claim
19 words
An adaptor according to claim 1 wherein said manifold passage progressively diminishes in size away from said inlet passage.
Claim 4
Dependent Claim
39 words
An adaptor according to claim 1 wherein said manifold passage has a tapering wall to effect a progressively diminishing cross sectional area thereof away from said inlet passage to effect a selected constant rate of flow of liquid therethrough.
Claim 5
Dependent Claim
26 words
An adaptor according to claim 1, said seat including an inclined shoulder having means centering the conical surface of a hose coupling threadable in said opening.
Claim 6
Dependent Claim
54 words
An adaptor according to claim 4 wherein said centering means comprIses a plurality of circumferentially spaced ribs formed on said shoulder and defining therebetween a series of passages communicating with said bore, said series of passages being variable in size upon compression of said ribs to vary the rate of delivery of liquid therethrough.
Claim 7
Dependent Claim
51 words
An adaptor according to claim 1 wherein said flow control passage means includes means provided on said seat defining a series of passages communicating with said bore, said series of passages being variable in size upon axial compression of said inlet end to vary the rate of delivery of liquid therethrough.
Claim 8
Dependent Claim
33 words
An adaptor according to claim 6 wherein said passages defining means comprise a plurality of ribs on said seat whereby compression of said ribs toward said seat varies the size of said passages.
Claim 9
Dependent Claim
28 words
An adaptor according to claim 7 wherein said series of passages are inclined inwardly from said annular wall to said bore in the direction of said outlet end.
Claim 10
Dependent Claim
35 words
An adaptor according to claim 7, together with a hose coupling threaded in said opening and urged against said ribs to compress said ribs and thereby vary the size of said series of said passages.
Claim 11
Dependent Claim
40 words
An adaptor according to claim 6 wherein said flow control passage means included an annular passage communicating between said manifold passage and said series of passages, said annular passage being variable in size upon axial compression of said inlet end.
Claim 12
Dependent Claim
91 words
An adaptor according to claim 10 including an annular bead on said annular wall outwardly of said manifold passage, said bead forming an annular seat, said passages defining means comprising a plurality of ribs on said first mentioned seat, together with a hose coupling threaded in said opening and urged against said annular bead to form a fluid tight seal therebetween, said bead and said ribs yielding under compression upon further threading of said coupling into said opening to vary the size of said annular passage and said series of passages.
Claim 13
Dependent Claim
17 words
An adaptor according to claim 11 wherein said seat is provided with an annular relief recess therearound.
Claim 14
Dependent Claim
13 words
An adaptor according to claim 1 wherein said resiliently yieldable material is urethane.
Claim 15
Dependent Claim
15 words
An adaptor according to claim 1 wherein said body is of a unitary, one-piece construction.
Claim 16
Dependent Claim
104 words
In combination with a nozzle for directing cementitious material therethrough, said nozzle having an inlet end and a bore, a liquid injector adaptor having an inlet end and an outlet end and a bore therethrough, said adaptor receiving said nozzle at said outlet end, a hose coupling for delivering cementitious material to said adaptor, said adaptor receiving said coupling at said inlet end, passage means adjacent said inlet end of said adaptor for connecting the bore thereof to a source of liquid, said passage means including at least one passage variable in size upon axial compression of said adaptor inlet end by said coupling.
Claim 17
Dependent Claim
104 words
In combination with a nozzle for directing cementitious material therethrough, said nozzle having an inlet end and a bore, a liquid injector adaptor having an inlet end and an outlet end and a bore therethrough, said adaptor receiving said nozzle at said outlet end, a hose coupling for delivering cementitious material to said adaptor, said adaptor receiving said coupling at said inlet end, passage means adjacent said inlet end of said adaptor for connecting the bore thereof to a source of liquid, said passage means including at least one passage variable in size upon axial compression of said adaptor inlet end by said coupling.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |