US3741011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for measuring the internal volume of moulds and similar cavity members
Assignee: Individual
•
Filing: 1971-05-28
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Granted: 1973-06-26
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Expires: 1991-05-28
Abstract
Abstract A method for measuring the internal volume of moulds or similar cavity members in which there is provided a filling member of known external volume which is arranged so as to substantially fill the volume of the mould or cavity member, and a filling member is introduced into the mould or cavity member so that a gap remains between the filling member and the internal wall and the gap being filled to a definable height with a flowable granular material of known bulk weight. The granular material disposed within the mould or cavity member is thereafter discharged and its weighable value measured so that the internal volume of the mould or similar cavity member can be determined.
Inventors
- 👤 R Seybold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:33
CPC Classifications
G; G01; G01F; G01F17/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
100 words
A method for measuring the internal volume of moulds or similar cavity members, characterised in that a filling member of known external volume which is arranged so as to substantially fill the volume of the mould or cavity member, is introduced therein so that a gap remains between said filling member and the internal wall and in that subsequently the gap is filled to a definable height with a flowable granular material of known bulk weiGht and in that thereafter the granular material disposed within the mould or cavity member thus is discharged and its weight or volume is measured.
Claim 2
Independent Claim
100 words
A method for measuring the internal volume of moulds or similar cavity members, characterised in that a filling member of known external volume which is arranged so as to substantially fill the volume of the mould or cavity member, is introduced therein so that a gap remains between said filling member and the internal wall and in that subsequently the gap is filled to a definable height with a flowable granular material of known bulk weiGht and in that thereafter the granular material disposed within the mould or cavity member thus is discharged and its weight or volume is measured.
Claim 3
Dependent Claim
33 words
A method according to claim 1, characterised in that the width of said gap does not fall below 2.5 times the maximum diameter of the particles of the granular material at any position.
Claim 4
Dependent Claim
29 words
A method according to claim 1 characterised in that the granular material consists of synthetic resin balls which are form-stable under the weight of the granular material dumping height.
Claim 5
Dependent Claim
26 words
A method according to claim 1, characterised in that the diameter of the particles of granular material varies between approximately 0.5 mm and approximately 2 mm.
Claim 6
Dependent Claim
17 words
A method according to claim 1 characterised in that the granular material is of uniform particle size.
Claim 7
Dependent Claim
31 words
A method according to claim 1 characterised in that the granular material is introduced by means of a vacuum established at a position disposed at a distance from its in-filling position.
Claim 8
Dependent Claim
43 words
A method according to claim 1, characterised in that after the introduction of the filling member the granular material is poured in at least partially in known volumetric quantities and the filling height is measured on the filling member after each filling phase.
Claim 9
Dependent Claim
128 words
A method according to claim 1, characterised in that for measuring the height of the chill mould or the cavity member corresponding to a given volume and after introduction of the filling member a known quantity of granular material approximately corresponding to the given volume and by reference to the anticipated filling member height is poured in and that thereafter and in conjunction with the actual volume is measured and that finally one or more changes are made to the amount of granular material poured in with the provisor that there is sufficient correspondence between the given volume and that of the total amount of granular material poured in as well as of the volume obtained for the height of the filling member whereupon this height is marked.
Claim 10
Dependent Claim
35 words
A method according to claim 1, characterised in that after the granular material is poured in and the filling height has been measured, the granular material is extracted by suction means into a receiving vessel.
Claim 11
Dependent Claim
27 words
A method according to claim 9, characterised in that impurities in the granular material are separatedin the receiving vessel before the quantity of granular material is measured.
Claim 12
Independent Claim
152 words
An apparatus for measuring the internal volume of moulds or similar cavity members comprising a mould or cavity member, a filing member of known external volume arranged within the mold or cavity member so as substantially fill the volume of the mold or cavity member and provide a gap between the filling member and the mold or cavity member, so that the gap can be subsequently filled to a definable height with a flowable granular material of known bulk weight, with the granular material being discharged and it''s weight or volume measured, the filling member being constructed in pressure-tight form, a vacuum generator to which the filling member is connectible said filling member being perforate in screen-like manner at a position which is disposed at a distance from the position of pouring in the granular material, the screen apertures being smaller than the diameter of the smallest particle of the granular material.
Claim 13
Independent Claim
152 words
An apparatus for measuring the internal volume of moulds or similar cavity members comprising a mould or cavity member, a filing member of known external volume arranged within the mold or cavity member so as substantially fill the volume of the mold or cavity member and provide a gap between the filling member and the mold or cavity member, so that the gap can be subsequently filled to a definable height with a flowable granular material of known bulk weight, with the granular material being discharged and it''s weight or volume measured, the filling member being constructed in pressure-tight form, a vacuum generator to which the filling member is connectible said filling member being perforate in screen-like manner at a position which is disposed at a distance from the position of pouring in the granular material, the screen apertures being smaller than the diameter of the smallest particle of the granular material.
Claim 14
Independent Claim
151 words
An apparatus for measuring the internal volume of molds or similar cavity members comprising a mold or cavity member, a filing member of known external volume arranged within the mold or cavity member so as to substantially fill a volume of the mold or cavity member and provide a gap between the filling member and the mold or cavity member, the gap being subsequently filled to a definable height with a flowable granular material of known bulk weight, with the granular material within the mold or cavity member being discharged and it''s weight or volume measured, the filling member being provided with two discs for closing the fIlling member in sealing-tight manner, said discs being disposed at a distance from each other which corresponds to the longitudinal extension of the mould or the cavity member and retain said filling member at the specified spacing in the mould or the cavity member.
Claim 15
Independent Claim
151 words
An apparatus for measuring the internal volume of molds or similar cavity members comprising a mold or cavity member, a filing member of known external volume arranged within the mold or cavity member so as to substantially fill a volume of the mold or cavity member and provide a gap between the filling member and the mold or cavity member, the gap being subsequently filled to a definable height with a flowable granular material of known bulk weight, with the granular material within the mold or cavity member being discharged and it''s weight or volume measured, the filling member being provided with two discs for closing the fIlling member in sealing-tight manner, said discs being disposed at a distance from each other which corresponds to the longitudinal extension of the mould or the cavity member and retain said filling member at the specified spacing in the mould or the cavity member.
Claim 16
Dependent Claim
48 words
The Apparatus according to claim 12 characterised in that one of the discs is provided with a connection for suction means and with a receiving vessel to be interposed therebetween and having apertures which are smaller relative to the diameter of the smallest particle of the granular material.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |