US4408703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispenser coffee cap
Assignee: Individual
•
Filing: 1981-05-13
•
Granted: 1983-10-11
•
Expires: 2001-05-13
Abstract
Abstract A measuring and dispensing closure for containers of granular material employs a slide element slidable in and out of a container cap top. The slide element has a chute element positioned thereon defining a series of trap spaces into which granular material is passed from the container when the slide element is in its retracted position. When the container is turned upside down and the slide element is moved outwardly relative to the cap top, the chute chamber passes out from a discharge opening formed on the cap top to expose the trap spaces to atmosphere for dispensing the granular material. Communication between the interior of the container and the trap spaces during dispensing is prevented by a planar ledge portion formed on the cap top and underlying the space beneath the chute chamber member. The slide element is preferably formed of plastic molded material and also includes a biasing member to provide a return force against outward movement of the slide. The series of trap spaces are positioned in sequence so that the user may dispense all or only a portion of the material collected by the chute element, depending upon the amount of outward extension of the slide.
Inventors
- 👤 Sidney M. Libit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:37
CPC Classifications
G; G01; G01F; G01F11/00; G01F11/10; G01F11/12; G01F11/14; G01F11/18
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
231 words
Apparatus for dispensing a predetermined amount of material from a container comprising a cap attachable to said container and having a top portion, said top portion comprising housing wall means, for defining a collection space communicating with the interior of said container and a laterally facing discharge opening leading from said collection space, and a planar ledge portion between an outer edge of said top portion and a bottom edge of said discharge opening, and a slide element comprising a generally planar top wall having an opening formed intermediately thereof and carrying underneath a chute element and a biasing means, said chute element comprising a series of longitudinally spaced lateral wall surfaces defining therebetween a corresponding series of vertically open trap chambers facing said top wall opening therebeneath across a gap, said biasing means comprising a resilient member which is compressed during outward movement of said slide element for providing a return force upon said slide element, said slide element top wall lying on said housing wall means for slidable movement thereover such that said chute element trap chambers pass into and out of said discharge opening and a portion of said housing wall means fits into said gap, whereby said trap chambers are contained in said collection space when said slide element is in its closed position and pass over said ledge portion during outward movement of said slide element.
Claim 2
Dependent Claim
231 words
Apparatus for dispensing a predetermined amount of material from a container comprising a cap attachable to said container and having a top portion, said top portion comprising housing wall means, for defining a collection space communicating with the interior of said container and a laterally facing discharge opening leading from said collection space, and a planar ledge portion between an outer edge of said top portion and a bottom edge of said discharge opening, and a slide element comprising a generally planar top wall having an opening formed intermediately thereof and carrying underneath a chute element and a biasing means, said chute element comprising a series of longitudinally spaced lateral wall surfaces defining therebetween a corresponding series of vertically open trap chambers facing said top wall opening therebeneath across a gap, said biasing means comprising a resilient member which is compressed during outward movement of said slide element for providing a return force upon said slide element, said slide element top wall lying on said housing wall means for slidable movement thereover such that said chute element trap chambers pass into and out of said discharge opening and a portion of said housing wall means fits into said gap, whereby said trap chambers are contained in said collection space when said slide element is in its closed position and pass over said ledge portion during outward movement of said slide element.
Claim 3
Dependent Claim
15 words
The apparatus of claim 1, wherein said slide element is made of molded plastic material.
Claim 4
Dependent Claim
24 words
The apparatus of claim 1, wherein said housing wall means comprises a recessed, flat wall strip for slidably containing said slide element top wall.
Claim 5
Dependent Claim
20 words
The apparatus of claim 1, wherein said biasing means comprises an overcenter spring means integrally molded with said slide element.
Claim 6
Dependent Claim
101 words
The apparatus of claim 4, wherein said biasing means comprises a support arm extending rearward of said chute element, a resilient hollow ring member carried by the trailing end of said support arm, a pair of link members extending laterally outwardly from substantially diametrically opposed surfaces of said ring member and each having a semi-circular grip member at an outer free end thereof, and a pair of laterally spaced pin means extending downwardly from said wall strip in said collection space for corresponding respective engagement by said grip members, whereby said link members are in over-center relation to said ring member.
Claim 7
Dependent Claim
49 words
The apparatus of claim 5, wherein said each of link members comprises first and second connected arm portions defining therebetween an obtuse angle, each said first arm portion being connected to said ring member with a hinge section and each said second arm portion carrying said corresponding grip member.
Claim 8
Dependent Claim
21 words
The apparatus of claim 6, wherein each said hinge section comprises a relatively thin segment of said corresponding first arm portion.
Claim 9
Dependent Claim
59 words
The apparatus of claim 5, wherein said pin means lie forwardly of said ring member when said slide element is in its closed position and lie rearwardly of said ring member when said slide element is in its outermost position, said link members compressing said ring member during movement of said slide element between its closed and outermost positions.
Claim 10
Dependent Claim
17 words
The apparatus of claim 1, wherein said slide element fits within the contour of said top portion.
Claim 11
Dependent Claim
86 words
The apparatus of claim 3, wherein said top portion has wall structure defining a trough on the opposed side of said housing wall means from said discharge opening between a vertical back wall of said housing wall means and said outer edge of said top portion, said biasing means being positioned in said trough and comprising a wave spring member fixed at one end to a vertically extending support wall formed on said slide element top wall and at its other end to said back wall.
Claim 12
Dependent Claim
48 words
The apparatus of claim 10, wherein said other end of said wave spring member is formed with a lateral wall surface for abutting against said back wall, said lateral wall surface having a pin projecting forwardly therefrom and received in a corresponding hole formed in said back wall.
Claim 13
Dependent Claim
15 words
The apparatus of claim 10, wherein said slide element is made of molded plastic material.
Claim 14
Dependent Claim
14 words
The apparatus of claim 1, wherein said top wall has a textured surface area.
Claim 15
Dependent Claim
33 words
The apparatus of claim 3, wherein said slide element top wall is formed with a guide rib member running longitudinally thereof for corresponding slidable receipt in a groove formed in said wall strip.
Claim 16
Dependent Claim
15 words
The apparatus of claim 1, wherein said trap chambers define volumes equal with one another.
Claim 17
Dependent Claim
187 words
Apparatus for dispensing a predetermined amount of material from a container comprising a cap attachable to said container and having a top portion, said top portion having a laterally facing discharge opening leading from a collection space defined in said top portion in direct communication with the interior of said container, and a planar ledge portion between an outer edge of said top portion and a bottom edge of said discharge opening, and a slide element reciprocable along said top portion comprising a chute element positioned for passage into and out of said discharge opening, said slide element comprising a planar platform wall carrying said chute element and which is slidably received along an upper surface of said top portion said chute element including a series of longitudinally spaced lateral wall surfaces defining therebetween a corresponding series of trap spaces, such that said trap spaces are contained in said collection space when said slide element is in its closed position and pass over said ledge portion during outward movement of said slide element, said platform wall having an opening formed intermediately thereof directly over said trap spaces.
Claim 18
Dependent Claim
187 words
Apparatus for dispensing a predetermined amount of material from a container comprising a cap attachable to said container and having a top portion, said top portion having a laterally facing discharge opening leading from a collection space defined in said top portion in direct communication with the interior of said container, and a planar ledge portion between an outer edge of said top portion and a bottom edge of said discharge opening, and a slide element reciprocable along said top portion comprising a chute element positioned for passage into and out of said discharge opening, said slide element comprising a planar platform wall carrying said chute element and which is slidably received along an upper surface of said top portion said chute element including a series of longitudinally spaced lateral wall surfaces defining therebetween a corresponding series of trap spaces, such that said trap spaces are contained in said collection space when said slide element is in its closed position and pass over said ledge portion during outward movement of said slide element, said platform wall having an opening formed intermediately thereof directly over said trap spaces.
Claim 19
Dependent Claim
29 words
The apparatus of claim 16, wherein said slide element further comprises biasing means formed thereon for providing a bias return force to said slide element during outward movement thereof.
Claim 20
Dependent Claim
15 words
The apparatus of claim 17, wherein said slide element is made of plastic molded material.
Claim 21
Dependent Claim
20 words
The apparatus of claim 17, wherein said biasing means comprises an overcenter spring means integrally molded with said slide element.
Claim 22
Dependent Claim
48 words
The apparatus of claim 17, wherein said biasing means comprises a wave spring member fixed at one end to a vertically extending support wall formed on said slide element and at its other end to a substantially vertical wall formed in said top portion behind said discharge opening.
Claim 23
Dependent Claim
14 words
The apparatus of claim 16, wherein said platform wall has a textured surface area.
Claim 24
Dependent Claim
77 words
The apparatus of claim 19, wherein said biasing means comprises a resilient hollow ring member carried by said slide element and a pair of link members extending laterally outwardly from substantially diametrically opposed surfaces of said ring member, said link members pivotally engaged at their corresponding outer ends with vertical pin means formed on said top portion, whereby said link members move simultaneously in over-center relation to said ring member during outward movement of said slide element.
Claim 25
Dependent Claim
20 words
The apparatus of claim 22, wherein said link members compress said ring member during outward movement of said slide element.
Claim 26
Dependent Claim
39 words
The apparatus of claim 22, wherein each of said link members comprises first and second connected arm portions defining therebetween an obtuse angle and each of said first arm portions joins at a hinge section with said ring member.
Claim 27
Dependent Claim
23 words
The apparatus of claim 24, wherein each said hinge section comprises a segment of relatively reduced thickness on said corresponding first arm portion.
Claim 28
Dependent Claim
15 words
The apparatus of claim 25, wherein said slide element is made of plastic molded material.
Claim 29
Dependent Claim
14 words
The apparatus of claim 22, wherein said pin means extend within said collection space.
Claim 30
Dependent Claim
15 words
The apparatus of claim 16, wherein said trap spaces define volumes equal with one another.
References Cited (Backward Citations)
US1758999A
Cited
US2537415A
Cited
US2553509A
Cited
US3056532A
Cited
AT252500B
Cited
US3227324A
Cited
US3347425A
Cited
US3458092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-10 | 1987-04-11 | 1987-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-10 | 1991-04-11 | 1991-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-10 | 1995-04-11 | 1995-10-11 | $7700.00 | Window Closed / Lapsed |