US3907245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic, two piece candle mold with integral fastening means
Assignee: FIBRE GLASS - EVERCOAT COMPANY Inc
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Filing: 1974-06-10
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Granted: 1975-09-23
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Expires: 1994-06-10
Abstract
Abstract The invention is directed to a bipart mold to produce castings of wax, plaster, gelatines, and various other plastics or moldable materials which may be poured into the mold in the fluid state, and removed from the mold after setting or solidifying. The improved bipart mold is formed of a plastic material having a degree of inherent flexibility and resiliency such as to permit forming thereon a plurality of integral, manipulatable mold locks or latches for locking the mold sections together with ease and despatch, the entire locking means being inseparable from, that is, integral with the mold parts or sections.
Inventors
- 👤 Joseph Linder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:25
CPC Classifications
C; C11; C11C; C11C5/00; C11C5/02; B; B29; B29C; B29C33/00; B29C33/20; B29C33/202; B29C43/00; B29C43/32; B29C43/36; B29C43/3642; B29C2043/3652; Y; Y10; Y10S; Y10S425/00; Y10S425/057; Y10S425/803
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
197 words
A bipart mold for producing molded objects from a fluid molding material such as wax, plaster, gelatin and the like which is settable to a solid condition; said mold comprising two registerable, separable, plastic, one-piece mold sections having mating registerable mold cavities therein which define a single enclosed mold cavity when the sections are operatively assembled together, said mold sections having a filling gate in communication with the mold cavity; a marginal, substantially planar portion on each mold section at the top, bottom and sides of the cavity and defining a mold parting area having substantially flat peripheral edges, means on said planar portions for aligning and sealing the mold sections relative to one another when the sections are operatively assembled; a plurality of spaced apart, registerable, interengageable, cooperative, integral mold clamping means on the peripheral edges of said sections for releasably holding the mold sections in substantial mutual contact at said parting areas, and said mold sections each having integral enlarged base portions thereon for supporting the mold in upright position to enable filling of the mold cavity through the filling gate when the mold sections are held in operative assembled relationship by said clamping means.
Claim 2
Dependent Claim
197 words
A bipart mold for producing molded objects from a fluid molding material such as wax, plaster, gelatin and the like which is settable to a solid condition; said mold comprising two registerable, separable, plastic, one-piece mold sections having mating registerable mold cavities therein which define a single enclosed mold cavity when the sections are operatively assembled together, said mold sections having a filling gate in communication with the mold cavity; a marginal, substantially planar portion on each mold section at the top, bottom and sides of the cavity and defining a mold parting area having substantially flat peripheral edges, means on said planar portions for aligning and sealing the mold sections relative to one another when the sections are operatively assembled; a plurality of spaced apart, registerable, interengageable, cooperative, integral mold clamping means on the peripheral edges of said sections for releasably holding the mold sections in substantial mutual contact at said parting areas, and said mold sections each having integral enlarged base portions thereon for supporting the mold in upright position to enable filling of the mold cavity through the filling gate when the mold sections are held in operative assembled relationship by said clamping means.
Claim 3
Dependent Claim
50 words
The mold as defined by claim 1, wherein interfitting, separable tongue and groove connectors are on said marginal portions of said mold sections to maintain the mold sections in mating registry with one another, said tongue and groove connectors being continuous along the major portions of the mold section margins.
Claim 4
Dependent Claim
32 words
The mold as defined by claim 2, wherein the tongue and groove connectors extend parallel to and closely adjacent the marginal edges of the bottom and opposite sides of the mold sections.
Claim 5
Dependent Claim
25 words
The mold as defined in claim 1, wherein the mold cavity has an outer shape approximating the shape of the article to be molded therein.
Claim 6
Dependent Claim
27 words
The mold as defined in claim 1, wherein the mold sections are generally rectangularly shaped and have integral, peripherally extending reinforcing flanges on the marginal edges thereof.
Claim 7
Dependent Claim
51 words
The mold as defined in claim 5, wherein the clamping means includes a plurality of spaced apart flexible loops on the outer surface of the reinforcing flanges of one of the mold sections and a plurality of integral lugs on the outer surface of the flanges of the other mold section.
Claim 8
Dependent Claim
37 words
The mold as defined in claim 5, wherein the base portions and reinforcing flanges on the mold sections project perpendicularly away from the mold parting area, and the base portions are of greater width than the flanges.
Claim 9
Dependent Claim
27 words
The mold as defined by claim 1, wherein the clamping means include loops initially formed substantially coplanar with the planar portion of one of the mold sections.
Claim 10
Dependent Claim
23 words
The mold as defined by claim 8, wherein said loops are integral with said one mold section and are resiliently stretchable relative thereto.
Claim 11
Dependent Claim
33 words
The mold as defined by claim 8, wherein in addition to said loops, the clamping means include lugs formed integrally upon the remaining mold section in position to be engaged by said loops.
Claim 12
Dependent Claim
26 words
The mold as defined by claim 10, wherein the loops and lugs include snap action means for snap engagement of the lugs by the loops aforesaid.
Claim 13
Dependent Claim
63 words
The mold as defined by claim 11, wherein said snap action means comprises a transverse strut on each loop, an extended dome on each lug, and a seat adjacent to each lug dome, the loop in advancing over the lug being subject to stretch as the strut traverses the dome with a frictional engagement and finds a position of repose upon said seat.
Claim 14
Dependent Claim
38 words
The mold as defined by claim 12, wherein said dome has an apex located at a greater distance from the parting area of the lug-bearing mold section, than is the distance between said parting area and said seat.
Claim 15
Dependent Claim
35 words
The mold as defined by claim 12, wherein said transverse strut has an inclined surface approximately complementary as to angularity, to the angle of inclination of the dome at the seat side of the dome.
Claim 16
Dependent Claim
30 words
The mold as defined by claim 14, wherein said inclined surface terminates in a resilient knife edge on the strut in position to frictionally traverse the apex of the dome.
Claim 17
Dependent Claim
34 words
The mold as defined by claim 13, wherein said transverse strut has an inclined surface angled approximately complementarily to the angle of inclination of the dome at the seat side of the dome axis.
Claim 18
Dependent Claim
41 words
The mold as defined by claim 16, wherein said inclined surface terminates in a resilient knife edge on the strut in position to frictionally wipe the apex of the dome prior to assuming a position of rest upon the seat aforesaid.
Claim 19
Dependent Claim
36 words
The mold as defined by claim 17, wherein the mold sections are maintained in registry by interfitting separable tongue and groove connectors, said connectors being substantially continuous along the major portions of the mold section margins.
Claim 20
Dependent Claim
31 words
The mold as defined by claim 1, wherein is included means for releasably holding opposite end portions of a wick in position to span the cavity of the mold when assembled.
Claim 21
Dependent Claim
32 words
The mold as defined by claim 19, wherein the means last mentioned comprises a wick socket near one end of the cavity, and a wick clamp means near the opposite end thereof.
Claim 22
Dependent Claim
24 words
The mold as defined by claim 20, wherein is included means to clamp the wick at said socket incident to closing of the mold.
Claim 23
Dependent Claim
26 words
The mold as defined by claim 19, wherein said wick holding means comprises a pair of spaced clamp fingers carried by one of the mold sections.
Claim 24
Dependent Claim
31 words
The mold as defined by claim 18, wherein is included means for releasably holding opposite end portions of a wick in position to span the cavity of the mold when assembled.
Claim 25
Dependent Claim
66 words
A mold as in claim 1, wherein at least one of said mold sections has a socket therein at one end of the mold cavity for receiving one end of a wick; and wick receiving and holding means at the other end of the mold cavity for holding the other end of a wick to maintain said wick in substantially centered relationship across said mold cavity.
Claim 26
Dependent Claim
66 words
A mold as in claim 2, wherein at least one of said mold sections has a socket therein at one end of the mold cavity for receiving one end of a wick; and wick receiving and holding means at the other end of the mold cavity for holding the other end of a wick to maintain said wick in substantially centered relationship across said mold cavity.
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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) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |