US3828648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic-lens cutter
Assignee: Individual
•
Filing: 1973-01-18
•
Granted: 1974-08-13
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Expires: 1993-01-18
Abstract
Abstract A plastic lens cutting device having a rotatable cutter, lens support structure, means to rotate a lens about an axis parallel to the axis of the cutter and a pattern and follower to control the shape of the lens being cut.
Inventors
- 👤 J Geula
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:01
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/50; B23Q1/54; B23Q1/545; B23C; B23C1/00; B23C1/16; B23C1/18; B23Q11/00; B23Q11/0042; B23Q11/006; B24; B24B; B24B9/00; B24B9/02; B24B9/06; B24B9/08; B24B9/14; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/301176; Y10T409/301624; Y10T409/302632
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
243 words
A plastic lens cutting device comprising in combination; a base, elongated lens cutting means supported on said base for rotation about its axis, arm support structure mounted on said base, an arm and pivot means for pivotally mounting said arm on said arm support structure, said arm having shaft mounting means at the free end thereof for supporting a first shaft parallel to said cutting means axis, said shaft mounting means including an internally threaded cylindrical opening and an externally threaded cylindrical element threadingly received therein, said first shaft being supported within a bore of said cylindrical element for rotation relative thereto and axial movement therewith, lens pattern means secured to one end of said first shaft and first lens gripping means secured to the other end thereof, second lens gripping means supported on said arm in axial alignment with said first shaft and being adjustable along said axial alignment, whereby a lens can be gripped between said first and second gripping means when moved relatively toward each other, means for supporting an elongate follower parallel to said first shaft and for vertically adjusting said follower relative to said base, whereby said follower can be adjusted to a predetermined height to cooperate with said lens pattern means when said arm is pivoted to a cutting position, and said cutter means being located on said base to engage and cut the lens when said arm and said lens pattern are pivoted toward said follower.
Claim 2
Dependent Claim
243 words
A plastic lens cutting device comprising in combination; a base, elongated lens cutting means supported on said base for rotation about its axis, arm support structure mounted on said base, an arm and pivot means for pivotally mounting said arm on said arm support structure, said arm having shaft mounting means at the free end thereof for supporting a first shaft parallel to said cutting means axis, said shaft mounting means including an internally threaded cylindrical opening and an externally threaded cylindrical element threadingly received therein, said first shaft being supported within a bore of said cylindrical element for rotation relative thereto and axial movement therewith, lens pattern means secured to one end of said first shaft and first lens gripping means secured to the other end thereof, second lens gripping means supported on said arm in axial alignment with said first shaft and being adjustable along said axial alignment, whereby a lens can be gripped between said first and second gripping means when moved relatively toward each other, means for supporting an elongate follower parallel to said first shaft and for vertically adjusting said follower relative to said base, whereby said follower can be adjusted to a predetermined height to cooperate with said lens pattern means when said arm is pivoted to a cutting position, and said cutter means being located on said base to engage and cut the lens when said arm and said lens pattern are pivoted toward said follower.
Claim 3
Dependent Claim
48 words
A plastic lens cutting device of claim 1 including a second shaft and crank means secured thereto fOr rotating same, said second shaft is mounted concentrically to said pivot means, and gear means for transmitting rotary motion from said second shaft to said first shaft for rotating same.
Claim 4
Dependent Claim
62 words
A plastic lens cutting device of claim 2 including two vertical supports mounted on said base and having means for rotatably supporting said lens cutting means therebetween, said last mentioned means including threaded means being adjustable in the direction of said cutter means axis on at least one of said vertical supports for clamping the lens cutting means between said vertical supports.
Claim 5
Dependent Claim
45 words
A plastic lens cutting device of claim 3, in which said arm support structure is slidably mounted on said base for movement in a direction parallel to said cutter means axis, and means to selectively position said arm support structure when moved along said base.
Claim 6
Dependent Claim
74 words
A plastic lens cutting device of claim 4 wherein said second lens gripping means supported on said arm includes a second shaft mounting means for rotatably supporting a third shaft in axial alignment with said first shaft, means at one end of said third shaft for engaging the lens and means associated with the other end of said third shaft for adjustably positioning said third shaft along the axial alignment with said first shaft.
Claim 7
Dependent Claim
28 words
A plastic-lens cutting device of claim 5, including means for blowing the material cut from the lens in a direction toward vacuum-suction means for catching said cut material.
Claim 8
Dependent Claim
28 words
A plastic-lens cutting device of claim 1, including means for blowing the material cut from the lens in a direction toward vacuum-suction means for catching said cut material.
Claim 9
Dependent Claim
24 words
A plastic-lens cutting device of claim 7, including a transparent shield mounted on said base and positioned in front of said lens cutting means.
Claim 10
Dependent Claim
24 words
A plastic-lens cutting device of claim 6, including a transparent shield mounted on said base and positioned in front of said lens cutting means.
Claim 11
Dependent Claim
100 words
A plastic-lens cutting device of claim 9, in which said gear means on said second shaft includes a bevel gear mounted on said second shaft, a bevel-gear shaft mounted rotatably on said arm along an axis transverse to and extending between said second shaft and said first shaft and bevel gears mounted on each end of the bevel-gear shaft, a bevel gear mounted on said first shaft, with one of the bevel gears of said bevel-gear shaft operatively engaging the first shaft bevel gear and the other bevel gear of said bevel-gear shaft operatively engaging the second shaft bevel gear.
Claim 12
Dependent Claim
96 words
A plastic-lens cutting device of claim 2, in which said second shaft includes a bevel gear mounted on said second shaft, a bevel-gear shaft mounted rotatably on said arm along an axis transverse to and extending between said second shaft and said first shaft and bevel gears mounted on each end of the bevel-gear shaft, a bevel gear mounted on said first shaft, with one of the bevel gears of said bevel-gear shaft operatively engaging the first shaft bevel gear and the other bevel gear of said bevel-gear shaft operatively engaging the second shaft bevel gear.
Claim 13
Dependent Claim
24 words
A plastic-lens cutting device of claim 3, in which said elongaged cutting means includes a structure having a plurality of separate axially-spaced cutting members.
Claim 14
Dependent Claim
24 words
A plastic-lens cutting device of claim 1, in which said elongated cutting means includes cutter structure comprising a plurality of separate mated cutting members.
Claim 15
Dependent Claim
17 words
A plastic-lens grinding device of claim 1, in which said lens cutting means comprises metallic cutter members.
Claim 16
Dependent Claim
18 words
A plastic-lens cutting device of claim 1, including a motor connected to said cutting means for rotating same.
Claim 17
Dependent Claim
18 words
A plastic-lens cutting device of claim 15, including control means for regulating speed of rotation of said motor.
Claim 18
Dependent Claim
31 words
A plastic-lens cutting device of claim 1, including spring means attached to said pivotable arm for alternately biasing the pivotable arm in a cutting position and in an open lens-mounting position.
Claim 19
Dependent Claim
23 words
A plastic-lens cutting device of claim 10, in which there is included a transparent shield arched over the front of said cutting means.
Claim 20
Dependent Claim
23 words
A plastic-lens cutting device of claim 1, in which there is included a transparent shield arched over the front of said cutting means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |