Patent US359747A successfully refreshed from Google Patents.
US4158922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flashing discoshoes
Assignee: LA Gear Inc
•
Filing: 1978-03-27
•
Granted: 1979-06-26
•
Expires: 1998-03-27
Abstract
Abstract A lighted shoe having a solid state oscillator circuit for causing periodic flashing on and off of a light associated with the shoe. A tilt switch may also be associated with the light or lights, and a three-position manual switch provided having one position wherein the light flashes periodically on and off, another position wherein the light is off, and yet another position wherein the tilt switch is inserted in the circuit with the light. The sole and heel may be formed of an integral piece of transparent rigid material, and an e.m.f. source, the circuit, the switch, and the light mounted on and in the integral piece. An AC adaptor is provided having two recharging plugs so that both shoes can be recharged at one time.
Inventors
- 👤 Alfred Dana, III
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:10
CPC Classifications
A; A43; A43B; A43B5/00; A43B5/12; A43B1/00; A43B1/0027; A43B1/0036; A43B1/0072; A43B3/00; A43B3/10; A43B3/101; A43B3/102; A43B3/34; A43B3/36
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
142 words
A shoe comprising a sole, an upper, a heel, a source of e.m.f., a light source adapted to be operatively connected to said source of e.m.f., circuitry means operatively connecting said source of e.m.f. to said light source, said circuitry means comprising solid-state oscillator circuit means for causing periodic flashing of said light source on and off no matter what the orientation of the shoe, and switch means for selectively connecting and disconnecting said solid-state oscillator circuit means to said source of e.m.f., said switch means including a manually actuated switch having a first position thereof wherein said solid-state oscillator circuit means connects said light source to said source of e.m.f. so that said light source periodically flashes, and a second position thereof wherein said solid-state oscillator circuit means is disconnected from said e.m.f. source so that said light source remains off.
Claim 2
Dependent Claim
142 words
A shoe comprising a sole, an upper, a heel, a source of e.m.f., a light source adapted to be operatively connected to said source of e.m.f., circuitry means operatively connecting said source of e.m.f. to said light source, said circuitry means comprising solid-state oscillator circuit means for causing periodic flashing of said light source on and off no matter what the orientation of the shoe, and switch means for selectively connecting and disconnecting said solid-state oscillator circuit means to said source of e.m.f., said switch means including a manually actuated switch having a first position thereof wherein said solid-state oscillator circuit means connects said light source to said source of e.m.f. so that said light source periodically flashes, and a second position thereof wherein said solid-state oscillator circuit means is disconnected from said e.m.f. source so that said light source remains off.
Claim 3
Dependent Claim
56 words
A shoe as recited in claim 1 wherein said circuitry means further comprises means for directly connecting said source of e.m.f. to said light source, and wherein said switch has a third position thereof wherein said light source is connected to said e.m.f. source through said circuitry means so that said light source is continuously on.
Claim 4
Dependent Claim
89 words
A shoe as recited in claim 1 wherein said e.m.f. source comprises at least one rechargeable battery, and further comprising a charging switch for receipt of a plug from a recharger; and further comprising, distinct from said shoe, a recharger for supplying current from an AC line to said at least one battery at the proper voltage for charging said at least one battery, said recharger having two recharger plugs operatively connected thereto so that both said shoe and another identical shoe can be recharged at the same time.
Claim 5
Dependent Claim
58 words
A shoe as recited in claim 1 wherein said solid-state circuit means comprises a capacitor and a PNP transistor emitter connected in parallel with each other and in series with said e.m.f. source and said light source, and further comprising a voltage divider and an NPN transistor operatively connected to said capacitor, PNP transistor gate, and e.m.f. source.
Claim 6
Dependent Claim
75 words
A shoe as recited in claim 1 wherein said circuitry means comprises shoe position responsive means for connecting said source of e.m.f. to said light source, said means including a tilt switch, and wherein said manual switch has a third position thereof wherein said tilt switch is connected between said source of e.m.f. and said light source so that said light source will flash on and off in response to the position of said shoe.
Claim 7
Dependent Claim
59 words
A shoe as recited in claim 5 further comprising a second light source operatively connected to said e.m.f. source through said tilt switch, and contact means for energizing said light source when said shoe is in a first orientation, and for energizing said second light source when said shoe is in a second orientation different from said first orientation.
Claim 8
Dependent Claim
39 words
A shoe as recited in claim 1 wherein said sole and said heel comprise an integral piece of transparent rigid material and wherein said e.m.f. source, light source, circuitry means, and switch means are mounted in said integral piece.
References Cited (Backward Citations)
US1597823A
Cited
GB483210A
Cited
US2572760A
Cited
US3070907A
Cited
US3564232A
Cited
FR2227714A5
Cited
US3893247A
Cited
US3946505A
Cited
US4020572A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-06-25 | 1982-12-25 | 1983-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-25 | 1986-12-25 | 1987-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-25 | 1990-12-25 | 1991-06-26 | $7700.00 | Window Closed / Lapsed |