US4336574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lighted coaster for drinking glasses
Assignee: Individual
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Filing: 1980-08-19
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Granted: 1982-06-22
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Expires: 2000-08-19
Abstract
Abstract A lighted coaster for supporting beverage containers such as glasses. The improvement provides a top cover having a translucent lens and a side skirt extending downwardly to overlap a base member. The base contains batteries and a spring-biased light bulb extending upwardly to contact the underside of the lens in such a fashion that when beverage glasses are placed on the coaster, the light moves downwardly to contact a suitably disposed circuit member and actuate the light. When the beverage is removed, the light urges the cover upwardly a short distance and breaks contact with the electric circuit and turns itself off.
Inventors
- 👤 Donald Goodman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:08
CPC Classifications
A; A47; A47G; A47G23/00; A47G23/03; A47G23/0306; A47G23/0309; A47G2200/00; A47G2200/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
195 words
A lighted coaster for drinking glasses and adapted to be lighted when supporting a glass and be off when not supporting a glass, the improvement comprising: a base; light means positioned within the base; current carrying first contact means supporting the light means and including first, movable connector means associated with the light means and movable between an off and on position; second, electrical connector means located in alignment with the light means and spaced therefrom when the coaster is not supporting a glass; a battery with circuit means connected with both the first movable connector means and the second connector means to power said light; a cover; said cover including a non permeable top providing a glass supporting lense means; guide means interconnecting the base and cover and including locking means and means to allow limited relative vertical movement between the cover and base yet prevent the cover from being unintentionally removed from the base when lifted; said first contact means providing biasing means for urging the first movable connector means to the off position away from the second connector means and thereby lift said cover when said glass is removed from the coaster.
Claim 2
Dependent Claim
195 words
A lighted coaster for drinking glasses and adapted to be lighted when supporting a glass and be off when not supporting a glass, the improvement comprising: a base; light means positioned within the base; current carrying first contact means supporting the light means and including first, movable connector means associated with the light means and movable between an off and on position; second, electrical connector means located in alignment with the light means and spaced therefrom when the coaster is not supporting a glass; a battery with circuit means connected with both the first movable connector means and the second connector means to power said light; a cover; said cover including a non permeable top providing a glass supporting lense means; guide means interconnecting the base and cover and including locking means and means to allow limited relative vertical movement between the cover and base yet prevent the cover from being unintentionally removed from the base when lifted; said first contact means providing biasing means for urging the first movable connector means to the off position away from the second connector means and thereby lift said cover when said glass is removed from the coaster.
Claim 3
Dependent Claim
31 words
The lighted coaster of claim 1 wherein: said current carrying first contact means comprises a cantilevered spring providing means for encircling and mounting the light adjacent the underside of said cover.
Claim 4
Dependent Claim
44 words
The lighted coaster of claim 2 and said first contact means and said second electrical connector means including clip means having finger means for attaching the clip means to the base; said clip means also including electrical contact means disposed to contact said battery.
Claim 5
Dependent Claim
37 words
The lighted coaster of claim 1 wherein said base includes: circuit support post means adapted to cooperate with the finger means of the first and second electrical connector means for holding same in position within the base.
Claim 6
Dependent Claim
20 words
The lighted coaster of claim 1, wherein: said second electrical connector comprises a second cantilevered contact located below the light.
Claim 7
Dependent Claim
23 words
The lighted coaster of claim 1 wherein said cover includes: a removable, translucent lense; retaining means for releasably holding the lense in position.
Claim 8
Dependent Claim
59 words
The lighted coaster of claim 1 wherein said guide means comprise; slot means; finger means; said slot means having an entrance and a closed section adapted to receive and guide the finger means; an inclined, ramp portion connecting the entrance and closed section; said closed section having a height to permit vertical; relative movement between the base and cover.
Claim 9
Dependent Claim
34 words
The lighted coaster of claim 1, wherein said circuit means comprise: formed metal means; said formed metal means comprising battery terminal means, means for attaching the metal means to the base, and, cantilever means.
Claim 10
Dependent Claim
143 words
A lighted coaster adapted to be lighted when supporting a glass and unlighted when the glass is removed the improvement comprising: a base; a cover with a non permeable top adapted to receive and support a beverage container and having vane-type skirt means depending downwardly from the top and spaced apart a first distance; said base having upstanding members corresponding with the vane-type skirt means and being spaced apart a second distance to permit the skirt means to fit between adjacent upstanding members; a light; battery means; electrical means connecting the light and battery means; said electrical means including spring means urging the cover away from the base and including means responsive to the weight of a beverage container on said cover to lower the cover and energize the light whereby light will pass through the openings at the side of the coaster.
Claim 11
Dependent Claim
143 words
A lighted coaster adapted to be lighted when supporting a glass and unlighted when the glass is removed the improvement comprising: a base; a cover with a non permeable top adapted to receive and support a beverage container and having vane-type skirt means depending downwardly from the top and spaced apart a first distance; said base having upstanding members corresponding with the vane-type skirt means and being spaced apart a second distance to permit the skirt means to fit between adjacent upstanding members; a light; battery means; electrical means connecting the light and battery means; said electrical means including spring means urging the cover away from the base and including means responsive to the weight of a beverage container on said cover to lower the cover and energize the light whereby light will pass through the openings at the side of the coaster.
Claim 12
Dependent Claim
43 words
The lighted coaster of claim 9, wherein said base and cover include: fingers having cantilever locking tabs; locking openings having a locking edge adapted to cooperate with the locking tabs for interconnecting and maintaining the base and cover in position as a unit.
Claim 13
Dependent Claim
45 words
The lighted coaster of claim 10 wherein: said locking opening includes a restricted, smaller opening and a larger opening to permit limited vertical movement of the cover toward the base yet will maintain the interconnection between the cover and base when the cover is lifted.
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) | 1985-06-21 | 1985-12-21 | 1986-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-21 | 1989-12-21 | 1990-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-21 | 1993-12-21 | 1994-06-22 | $7700.00 | Window Closed / Lapsed |