US3604130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction series for molecular models
Assignee: Incentive AB
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Filing: 1969-06-27
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Granted: 1971-09-14
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Expires: 1989-06-27
Abstract
Abstract Plural units can be assembled to form models of molecules, and a first unit has the shape of a sphere segment which is larger than a semisphere and has a flat surface formed with a recess and is preferably shell-shaped. A second unit has the shape of a sphere segment which is smaller than a semisphere and has the same radius as the first unit, and the first and second units can be assembled to form a complete sphere. Two of the first units can be assembled so that the spherical surface of one is situated in the recess of the other, thus representing two atoms having their electron clouds intermingled. The units are formed with apertures in their spherical surfaces and with pegs cooperable with the apertures to assemble units to each other.
Inventors
- 👤 Bo Forsstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:47
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/26
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
282 words
Construction series for molecular models comprising, in combination, three units including a first unit, a second unit and a third unit; said first unit being in the form of a semisphere having a flat surface; said second unit being in the form of a segment of a sphere defined by a spherical surface and two flat parallel surfaces of different radii, the larger of said two flat parallel surfaces having the same radius as the flat surface of said first unit; the spherical surface of said second unit having the same radius as the spherical surface of said first unit; the smaller of said two flat parallel surfaces being formed with a recess into which a first unit can be partially inserted; said third unit having substantially the shape of a semisphere with a smaller radius than the semisphere forming said first unit, and having a flat surface formed with a recess into which a first unit can be inserted; interengageable means on each first unit providing for two first units to be joined to form a sphere; interengageable means on each second unit and each first unit providing for joining of a second unit to a first unit with their flat surfaces of equal radii in contiguous relation; interengageable means on each second unit and on each first unit providing for joining of a second unit to a first unit in which a part of the spherical surface of the first unit is seated in the recess in the second unit; and interengageable means on each third unit and on said first unit providing for mounting of a third unit on a first unit in any one of plural selected positions.
Claim 2
Dependent Claim
282 words
Construction series for molecular models comprising, in combination, three units including a first unit, a second unit and a third unit; said first unit being in the form of a semisphere having a flat surface; said second unit being in the form of a segment of a sphere defined by a spherical surface and two flat parallel surfaces of different radii, the larger of said two flat parallel surfaces having the same radius as the flat surface of said first unit; the spherical surface of said second unit having the same radius as the spherical surface of said first unit; the smaller of said two flat parallel surfaces being formed with a recess into which a first unit can be partially inserted; said third unit having substantially the shape of a semisphere with a smaller radius than the semisphere forming said first unit, and having a flat surface formed with a recess into which a first unit can be inserted; interengageable means on each first unit providing for two first units to be joined to form a sphere; interengageable means on each second unit and each first unit providing for joining of a second unit to a first unit with their flat surfaces of equal radii in contiguous relation; interengageable means on each second unit and on each first unit providing for joining of a second unit to a first unit in which a part of the spherical surface of the first unit is seated in the recess in the second unit; and interengageable means on each third unit and on said first unit providing for mounting of a third unit on a first unit in any one of plural selected positions.
Claim 3
Dependent Claim
24 words
Construction series according to claim 1 characterized in that the thickness of the spherical segment is approximately half the radius of the sphere surface.
Claim 4
Dependent Claim
84 words
Construction series according to claim 1, characterized in that the sphere segment has a wall which substantially coincides with its larger flat parallel surface and that this wall is provided with a peg extending centrally in both directions from the wall, one part of the peg being arranged to cooperate with a hole in the spherical surface of the first unit, and the other part of the peg being arranged to cooperate with a centrally positioned hole in the flat surface of said semisphere.
Claim 5
Dependent Claim
38 words
Construction series according to claim 1, characterized in that the third unit is shell-shaped and provided on the inside with a central peg which is arranged to cooperate with holes in the spherical surface of the first unit.
Claim 6
Dependent Claim
44 words
Construction series according to claim 1, characterized in that the first unit is shell-shaped and provided on the inside with a centrally positioned socket, two such units being assembled by means of a peg which is inserted into the sockets of the two units.
Claim 7
Dependent Claim
42 words
Construction series according to claim 1, characterized in that the first unit are shell-shaped and provided on the inside with centrally positioned assembly means of two types, the first being a socket and the second a peg to cooperate with said socket.
Claim 8
Dependent Claim
50 words
Construction series according to claim 1, characterized in that the first unit is provided on its spherical surface with holes to cooperate with pegs belonging to the second and third units, these holes comprising one central hole and three equally spaced holes situated nearer to the periphery of the semisphere.
Claim 9
Dependent Claim
39 words
Construction series according to claim 7, characterized in that the spherical surface has an additional hole, situated between two of said three holes and preferably at the same distance from the periphery of the semisphere as said three holes.
Claim 10
Dependent Claim
24 words
Construction series according to claim 1, characterized in that the radius of the third unit is 3/4 of the radius of the first unit.
Claim 11
Dependent Claim
30 words
Construction series according to claim 1 characterized in that holes and pegs, serving as assembly means, have a noncircular cross section, in order to prevent rotation between two assembled units.
Claim 12
Dependent Claim
35 words
Construction series according to claim 1 characterized in that the first unit and the second unit are provided with holes and pegs arranged at the periphery, in order to prevent rotation between two assembled units.
Claim 13
Dependent Claim
28 words
Construction series according to claim 1 characterized in that the second unit is provided with a mark, to indicate a double or triple bond between two adjacent atoms.
Claim 14
Dependent Claim
47 words
Construction series according to claim 1, characterized in that each first unit is formed with apertures forming part of said interengageable means, and is provided with marks near said apertures in order to indicate two feasible positioning patterns for atoms bound, for example, to the carbon atom.
Claim 15
Dependent Claim
139 words
Construction series for molecular models comprising, in combination, a first unit in the form of a spherical segment having a spherical surface of having a size substantially greater than a semisphere, and having a flat surface formed with a recess on such flat surface for receiving a portion of a spherical surface of another unit; a joining member, in the form of a peg, extending from the bottom of said recess centrally of said recess and approximately to said flat surface; the spherical surface of said first unit being formed with at least one aperture having a cross section corresponding to that of the cross section of said peg and a second unit substantially identical to said first unit, whereby two units can be joined by inserting the peg of one unit into the aperture of the other unit.
Claim 16
Dependent Claim
139 words
Construction series for molecular models comprising, in combination, a first unit in the form of a spherical segment having a spherical surface of having a size substantially greater than a semisphere, and having a flat surface formed with a recess on such flat surface for receiving a portion of a spherical surface of another unit; a joining member, in the form of a peg, extending from the bottom of said recess centrally of said recess and approximately to said flat surface; the spherical surface of said first unit being formed with at least one aperture having a cross section corresponding to that of the cross section of said peg and a second unit substantially identical to said first unit, whereby two units can be joined by inserting the peg of one unit into the aperture of the other unit.
Claim 17
Dependent Claim
21 words
Construction series according to claim 14, characterized in that the spherical segment has a bore running completely through the central peg.
Claim 18
Dependent Claim
38 words
Construction series according to claim 14, characterized in that the first unit has a central peg having a thicker part provided with a longitudinal bores and a narrower part which fits into the bores in the thicker part.
Claim 19
Dependent Claim
34 words
Construction series according to claim 16, characterized in that the first unit is constructed as a shell with the central peg extending from the top of the shell substantially to the flat surface plane.
Claim 20
Dependent Claim
61 words
Construction series for molecular models, as claimed in claim 25, including a third unit in the form of a spherical segment having a size less than a semisphere and having the same radius as said first unit; each third unit having means cooperable with the peg of a first unit to join a first and third unit to form a sphere.
Claim 21
Dependent Claim
33 words
Construction series according to claim 14, in which said first unit is formed with three apertures so positioned that the angle between radii of said spherical segment intersecting adjacent apertures is substantially 109*.
Claim 22
Dependent Claim
37 words
Construction series, according to claim 14, in which said first unit is formed with two apertures in its spherical surface so positionEd that the angle between radii of said spherical segment intersecting said two apertures is 120*.
Claim 23
Dependent Claim
50 words
Construction series, according to claim 14, particularly intended for constructing models of crystals, characterized in that the first unit is formed with a hole positioned centrally of its spherical surface and with four additional holes in its spherical surface, with the angle between radii intersecting said additional hole being 90*.
References Cited (Backward Citations)
US2228736A
Cited
US2308402A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |