US3926202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collapsible and tiltable umbrella
Assignee: Kortenbach Verwaltungs- und Beteiligungsgesellschaft Mbh & Co
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Filing: 1974-01-04
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Granted: 1975-12-16
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Expires: 1994-01-04
Abstract
Abstract This disclosure relates to an umbrella which includes a plurality of cover ribs having struts hinged thereto with the cover ribs and struts additionally being hingedly connected to a crown carried by a crown shaft and a rim carried by a rim shaft, respectively, and means for imparting sliding movement to the crown shaft whereby the crown and rim are moved away from and toward each other respectively during respective opening and closing operations of the umbrella. Means are provided for biasing the crown and rim shafts in a direction tending to move the crown away from the rim, the rim shaft being tubular and being in external telescopic relationship to the crown shaft, the sliding movement imparting means being in part defined by a rod connected at one end to the crown shaft, the rod being at least partially housed within the tubular rim shaft, and motion being imparted to the rod through a chain entrained about sprockets, a rack and pinion arrangement, or the like. Preferably the rim shaft also includes upper and lower shaft sections, and means mounting the upper and lower shaft sections for pivotal movement relative to each other whereby the shaft sections may be disposed either with the axes thereof coincident or oblique relative to each other.
Inventors
- 👤 Wolfgang Uthemann
- 👤 Josef Hofman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:24
CPC Classifications
A; A45; A45B; A45B25/00; A45B25/14; A45B17/00; A45B25/10; A45B2025/105; A45B2025/146
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
142 words
An umbrella frame comprising a plurality of cover ribs, hinge means for articulately connecting each cover rib to a crown, a crown shaft carrying said crown, a rim, a rim shaft carrying said rim, said crown shaft being mounted for linear sliding motion relative to said rim shaft, a plurality of struts, hinge means for articulately connecting each strut between said cover ribs and said rim, means for imparting sliding movement to said crown shaft whereby the crown and rim are moved away from and toward each other respectively during respective opening and closing operations of said umbrella, said rim shaft including upper and lower shaft sections, and means mounting said upper and lower shaft sections for pivotal movement relative to each other whereby said shaft sections may be disposed either with the axes thereof coincident or oblique relative to each other.
Claim 2
Dependent Claim
142 words
An umbrella frame comprising a plurality of cover ribs, hinge means for articulately connecting each cover rib to a crown, a crown shaft carrying said crown, a rim, a rim shaft carrying said rim, said crown shaft being mounted for linear sliding motion relative to said rim shaft, a plurality of struts, hinge means for articulately connecting each strut between said cover ribs and said rim, means for imparting sliding movement to said crown shaft whereby the crown and rim are moved away from and toward each other respectively during respective opening and closing operations of said umbrella, said rim shaft including upper and lower shaft sections, and means mounting said upper and lower shaft sections for pivotal movement relative to each other whereby said shaft sections may be disposed either with the axes thereof coincident or oblique relative to each other.
Claim 3
Dependent Claim
29 words
The umbrella frame as defined in claim 1 including means for biasing said crown and rim shafts in a direction tending to move said crown away from said rim.
Claim 4
Dependent Claim
56 words
The umbrella frame as defined in claim 1 wherein said rim shaft is tubular, said crown shaft is in internal telescopic relationship thereto, said sliding movement imparting means is in part defined by a rod connected at one end to said crown shaft, and said rod is at least partially housed within said tubular rim shaft.
Claim 5
Dependent Claim
70 words
The umbrella frame as defined in claim 1 wherein said pivotal mounting means includes a sleeve housed within an upper end of said lower rim shaft section, a longitudinal slot in said sleeve, a pin passing through said slot and secured to said lower rim shaft section whereby said sleeve may move axially, and a pivotal connection between said sleeve and a lower end of said upper rim shaft section.
Claim 6
Dependent Claim
41 words
The umbrella frame as defined in claim 1 wherein said pivotal mounting means includes a pivot pin passing through a lower end of said upper shaft section and through a longitudinally extending slot in a lower end of said crown shaft.
Claim 7
Dependent Claim
50 words
The umbrella frame as defined in claim 5 wherein said lower shaft section is tubular, said sliding movement imparting means is in part defined by a rod connected at one end to said crown shaft lower end, and said rod is at least partially housed within said lower shaft section.
Claim 8
Dependent Claim
243 words
An umbrella frame comprising a plurality of cover ribs, hinge means for articulately connecting each cover rib to a crown, a crown shaft carrying said crown, a rim, a rim shaft carrying said rim, said crown shaft being mounted for linear sliding motion relative to said rim shaft, a plurality of struts, hinge means for articulately connecting each strut between said cover ribs and said rim, means for imparting sliding movement to said crown shaft whereby the crown and rim are moved away from and toward each other respectively during respective opening and closing operations of said umbrella, said rim shaft including upper and lower shaft sections, means mounting said upper and lower shaft sections for pivotal movement relative to each other whereby said shaft sections may be disposed either with the axes thereof coincident or oblique relative to each other, said pivotal mounting means includes a generally hollow housing carried by an upper end of said lower shaft section, said hollow housing having first and second axially aligned bores for respective receipt of said upper and lower shaft sections, a third bore obliquely disposed relative to said first and second bores, a pin carried by said housing spanning said first bore and an imaginary projection of said third bore, and said pin passes through an opening in a lower end of said upper shaft section whereby said upper and lower sections may be disposed axially aligned or obliquely relative to each other.
Claim 9
Dependent Claim
243 words
An umbrella frame comprising a plurality of cover ribs, hinge means for articulately connecting each cover rib to a crown, a crown shaft carrying said crown, a rim, a rim shaft carrying said rim, said crown shaft being mounted for linear sliding motion relative to said rim shaft, a plurality of struts, hinge means for articulately connecting each strut between said cover ribs and said rim, means for imparting sliding movement to said crown shaft whereby the crown and rim are moved away from and toward each other respectively during respective opening and closing operations of said umbrella, said rim shaft including upper and lower shaft sections, means mounting said upper and lower shaft sections for pivotal movement relative to each other whereby said shaft sections may be disposed either with the axes thereof coincident or oblique relative to each other, said pivotal mounting means includes a generally hollow housing carried by an upper end of said lower shaft section, said hollow housing having first and second axially aligned bores for respective receipt of said upper and lower shaft sections, a third bore obliquely disposed relative to said first and second bores, a pin carried by said housing spanning said first bore and an imaginary projection of said third bore, and said pin passes through an opening in a lower end of said upper shaft section whereby said upper and lower sections may be disposed axially aligned or obliquely relative to each other.
Claim 10
Dependent Claim
37 words
The umbrella frame as defined in claim 7 wherein said crown shaft includes a longitudinally extending slot, and said piN passes through said slot whereby said crown shaft may slide axially relative to said upper shaft section.
Claim 11
Dependent Claim
60 words
The umbrella frame as defined in claim 7 wherein said sliding movement imparting means includes a rod connected at one of its ends to said crown shaft, and said rod is bent obliquely relative to the axis of said rim shaft for receipt into said third bore when said upper shaft section is disposed obliquely to said lower shaft section.
Claim 12
Dependent Claim
90 words
The umbrella frame as defined in claim 7 wherein said sliding movement imparting means includes a rod connected at one of its ends to said crown shaft, said rod is bent obliquely relative to the axis of said rim shaft for receipt into said third bore when said upper shaft section is disposed obliquely to said lower shaft section, said lower shaft section is tubular, respective upper movable and lower fixed bushings within said lower shaft section slidably receiving said rod, and said housing means is sandwiched between said bushings.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |