Patent US6451044B1 successfully refreshed from Google Patents.
Patent US5165418B1 successfully refreshed from Google Patents.
US3769504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foldable lamp shade
Assignee: Staff und Schwarz GmbH
•
Filing: 1971-03-15
•
Granted: 1973-10-30
•
Expires: 1991-03-15
Abstract
Abstract A foldable lamp shade comprising a covering material cut to the desired shape of the shade, foldable frame holding the covering material, wherein said frame has several tensioning rods secured to said covering material, and several spreading rods pivotably secured at one end to the tensioning rods and at their other end to a slide, said slide being detachably secured on a supporting tube or rod receiving a lamp casing.
Inventors
- 👤 K Hesse
- 👤 H Wagner
- 👤 H Schunck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:22
CPC Classifications
F; F21; F21V; F21V1/00; F21V1/02; F21V1/06; A; A45; A45B; A45B3/00; A45B3/02; A45B3/04
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
166 words
A foldable lamp shade comprising: a. a covering material cut to the desired shape of the shade, b. a foldable frame holding the coverng material, the frame comprising: 1. a plurality of tensioning rods secured to the covering material, 2. a plurality of spreading rods pivotably secured at their one ends to the tensioning rods, 3. a supporting tube, 4. a first slide detachably mounted on the supporting tube, 5. some of the spreading rods being pivotably connected to the first slide at their other ends, c. a lamp casing mounted on the supporting tube, the lamp casing being formed in two halves, d. bulb holder attachments mounted in the lamp casing, e. a second slide detachably mounted on said supporting tube, said other ends of the remaining spreading rods being pivotably connected to said second slide, f. the two halves of the lamp casing being mounted on the supporting tube between said slides and forming two abutments, co-axial wiTh the supporting tube, for the slides.
Claim 2
Dependent Claim
166 words
A foldable lamp shade comprising: a. a covering material cut to the desired shape of the shade, b. a foldable frame holding the coverng material, the frame comprising: 1. a plurality of tensioning rods secured to the covering material, 2. a plurality of spreading rods pivotably secured at their one ends to the tensioning rods, 3. a supporting tube, 4. a first slide detachably mounted on the supporting tube, 5. some of the spreading rods being pivotably connected to the first slide at their other ends, c. a lamp casing mounted on the supporting tube, the lamp casing being formed in two halves, d. bulb holder attachments mounted in the lamp casing, e. a second slide detachably mounted on said supporting tube, said other ends of the remaining spreading rods being pivotably connected to said second slide, f. the two halves of the lamp casing being mounted on the supporting tube between said slides and forming two abutments, co-axial wiTh the supporting tube, for the slides.
Claim 3
Dependent Claim
15 words
a plurality of spreading rods pivotably secured at their one ends to the tensioning rods,
Claim 4
Dependent Claim
15 words
a plurality of spreading rods pivotably secured at their one ends to the tensioning rods,
Claim 5
Dependent Claim
80 words
A foldable lamp shade as recited in claim 1 wherein radial grooves are provided in each slide to guide the spreading rods, and further comprising a bearing tube mounted on said supporting tube, a collar provided on one end of said bearing tube acting as an abutment for the slide, a thread provided on the other end of said bearing tube, a nut mounted on said thread, a fixing screw engaging through said nut and pressing against said supporting tube.
Claim 6
Dependent Claim
15 words
a plurality of spreading rods pivotably secured at their one ends to the tensioning rods,
Claim 7
Dependent Claim
15 words
a plurality of spreading rods pivotably secured at their one ends to the tensioning rods,
Claim 8
Dependent Claim
3 words
a supporting tube,
Claim 9
Dependent Claim
3 words
a supporting tube,
Claim 10
Dependent Claim
87 words
A foldable lamp shade as recited in claim 1 wherein radial grooves are provided in each slide to guide the spreading rods, and further comprising a bearing tube mounted on said supporting tube, a collar provided on one end of said bearing tube acting as an abutment for the slide, said other end of said bearing tube being conical in shape and being threaded and slotted, a nut mounted on the threaded conical end to press said conical end of the bearing tube against the supporting tube.
Claim 11
Dependent Claim
3 words
a supporting tube,
Claim 12
Dependent Claim
3 words
a supporting tube,
Claim 13
Dependent Claim
9 words
a first slide detachably mounted on the supporting tube,
Claim 14
Dependent Claim
9 words
a first slide detachably mounted on the supporting tube,
Claim 15
Dependent Claim
9 words
a first slide detachably mounted on the supporting tube,
Claim 16
Dependent Claim
9 words
a first slide detachably mounted on the supporting tube,
Claim 17
Dependent Claim
83 words
A foldable lamp shade as recited in claim 1 wherein each slide is annular and said spreading rods are connected to said tensioning rods at connecting points, one slide being disposed above the connecting points in the untensioned position of the shade and below the connecting points in the tensioned position of the shade, and the other slide being disposed below the connecting points in the untensioned position of the shade and above the connecting points in the tensioned position of the shade.
Claim 18
Dependent Claim
66 words
A foldable lamp shade as defined in claim 1 wherein: a. the two halves of the lamp housing are superimposed one on top of the other and are provided with a vertical passage through which the supporting tube passes, b. the two abutments comprise socket tubes at opposite ends of the vertical passage, and c. the bulb holder attachments extend radially outward from the vertical passage.
Claim 19
Dependent Claim
111 words
the spreading rods being pivotably connected to the first slide at their other ends, c. a lamp casing mounted on the supporting tube, the lamp casing being formed in two halves, d. bulb holder attachments mounted in the lamp casing, e. supporting rods pivotably connected at one end thereof to approximately the center longitudinal region of said spreading rods, f. a second slide mounted on said supporting tube, the other end of said supporting rods being pivotably connected to said second slide, g. the two halves of the lamp casing being mounted on the supporting tube between said slides and forming two abutments, co-axial with the supporting tube, for the slides.
Claim 20
Dependent Claim
111 words
the spreading rods being pivotably connected to the first slide at their other ends, c. a lamp casing mounted on the supporting tube, the lamp casing being formed in two halves, d. bulb holder attachments mounted in the lamp casing, e. supporting rods pivotably connected at one end thereof to approximately the center longitudinal region of said spreading rods, f. a second slide mounted on said supporting tube, the other end of said supporting rods being pivotably connected to said second slide, g. the two halves of the lamp casing being mounted on the supporting tube between said slides and forming two abutments, co-axial with the supporting tube, for the slides.
Claim 21
Dependent Claim
96 words
some of the spreading rods being pivotably connected to the first slide at their other ends, c. a lamp casing mounted on the supporting tube, the lamp casing being formed in two halves, d. bulb holder attachments mounted in the lamp casing, e. a second slide detachably mounted on said supporting tube, said other ends of the remaining spreading rods being pivotably connected to said second slide, f. the two halves of the lamp casing being mounted on the supporting tube between said slides and forming two abutments, co-axial wiTh the supporting tube, for the slides.
Claim 22
Dependent Claim
96 words
some of the spreading rods being pivotably connected to the first slide at their other ends, c. a lamp casing mounted on the supporting tube, the lamp casing being formed in two halves, d. bulb holder attachments mounted in the lamp casing, e. a second slide detachably mounted on said supporting tube, said other ends of the remaining spreading rods being pivotably connected to said second slide, f. the two halves of the lamp casing being mounted on the supporting tube between said slides and forming two abutments, co-axial wiTh the supporting tube, for the slides.
Claim 23
Dependent Claim
28 words
A foldable lamp shade comprising: a. a covering material cut to the desired shape of the shade, b. a foldable frame holding the covering material, the frame comprising:
Claim 24
Dependent Claim
28 words
A foldable lamp shade comprising: a. a covering material cut to the desired shape of the shade, b. a foldable frame holding the covering material, the frame comprising:
Claim 25
Dependent Claim
110 words
A foldable lamp shade as recited in claim 6 wherein a bearing tube is provided on said supporting tube and supports said lamp casing, said lamp casing being disposed between said first and second slides, a collar provided on one end of said bearing tube abuts against one slide, a recess is provided in said bearing tube and in said supporting tube, a hook-shaped lever-like locking member is provided on said second slide, a spring is connected to said locking member and to said second slide, said locking member engaging in said recesses in said bearing and supporting tubes thereby retaining said bearing tube in position on said supporting tube.
Claim 26
Dependent Claim
54 words
A foldable lamp shade as recited in claim 7 further comprising projections provided on said first slide, grooves provided in said collar, said projections engaging in said grooves and thereby preventing rotation of said bearing tube, and further comprising grooves provided in said first and secoNd slides which receive the spreading and supporting rods.
Claim 27
Dependent Claim
38 words
A foldable lamp shade as recited in claim 8 wherein said tensioning rods are formed of resilient wires and wherein said supporting rods are suspended at the connecting points with the spreading rods to insert the lamp casing.
Claim 28
Dependent Claim
66 words
A foldable lamp shade as defined in claim 6 wherein: a. the two halves of the lamp housing are superimposed one on top of the other and are provided with a vertical passage through which the supporting tube passes, b. the two abutments comprise socket tubes at opposite ends of the vertical passage, and c. the bulb holder attachments extend radially outward from the vertical passage.
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) | 1976-10-29 | 1977-04-30 | 1977-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-29 | 1981-04-30 | 1981-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-29 | 1985-04-30 | 1985-10-30 | $7700.00 | Window Closed / Lapsed |