US3584793A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swingable joint for load suspension, particularly for use in aseptic surroundings
Assignee: Original Hanau Quarzlampen GmbH
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Filing: 1969-11-24
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Granted: 1971-06-15
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Expires: 1989-11-24
Abstract
Abstract To support operating room lights or the like from a ceiling, a joint is provided interconnecting a pair of half shells, one arm, for example mounted on a ceiling, extending from one shell side and the other arm, for example supporting an operating room light, extending from the other shell side, with both shells having matching, circular surfaces facing each other, preferably lapped, or ground to provide for free rotation, and direct access for cleaning and maintenance in aseptic condition. One of the arms is preferably spring loaded, and access to the internal spring-loading mechanism can be had through openings, closed off by cover plates, through the shells.
Inventors
- 👤 Karl F Ilzig
- 👤 Klaus Junginger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:32
CPC Classifications
F; F16; F16M; F16M11/00; F16M11/20; F16M11/2007; F16M11/2021; F16M13/00; F16M13/02; F16M13/027; F16C; F16C11/00; F16C11/04; F16M2200/00; F16M2200/04; F16M2200/044
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
113 words
Swingable load suspension joint for aseptic surroundings to be interposed between a pair of support arms comprising a first attachment section (10'') to attach the joint to a first support arm (10); a second attachment section (12'') to attach the joint to a second support arm (12); means securing said attachment sections together for relative swinging movement with respect to each other; each said attachment sections having, each, a single circular surface, the surfaces of said attachment sections being similar, abutting and facing each other and forming closed circles, said surfaces closely fitting and matching against each other to enable said swinging movement and to form a single closed discontinuity in the joint.
Claim 2
Dependent Claim
113 words
Swingable load suspension joint for aseptic surroundings to be interposed between a pair of support arms comprising a first attachment section (10'') to attach the joint to a first support arm (10); a second attachment section (12'') to attach the joint to a second support arm (12); means securing said attachment sections together for relative swinging movement with respect to each other; each said attachment sections having, each, a single circular surface, the surfaces of said attachment sections being similar, abutting and facing each other and forming closed circles, said surfaces closely fitting and matching against each other to enable said swinging movement and to form a single closed discontinuity in the joint.
Claim 3
Dependent Claim
92 words
Joint according to claim 1 including a shaft (16) mounted in the joint adapted to be placed in a horizontal plane to provide for swinging movement of the attachment sections thereabout, in a vertical plane, with respect to each other, said shaft extending from one of said sections beyond the horizontal projection thereof; means (9) journaling the other section about said shaft; and load-balancing means in said joint to balance the weight of the load attached to one of said arms, said balancing means being encapsulated within said arms and said joint.
Claim 4
Dependent Claim
21 words
Joint according to claim 1 in combination with an operating lamp attached to one arm, wherein said matching surfaces are lapped.
Claim 5
Dependent Claim
11 words
Joint according to claim 1, wherein the matching surfaces are ground.
Claim 6
Dependent Claim
104 words
Joint according to claim 1, wherein one of said arms is spring-loaded to support a load at the other end; a spring (6); means are provided to adjust compression of the spring, said means including a sector-shaped element (7) included in the attachment section of the arm; a push link (22) having one end pivotally mounted (8) on said sector-shaped element, offset from said shaft (16) and the other end bearing against said spring; and means adjustably fixing the position of said sector-shaped element within the attachment section to adjust the offset of the pivotal mounting of said push link and thus spring tension.
Claim 7
Dependent Claim
11 words
Joint according to claim 1, wherein the matching surfaces are lapped.
References Cited (Backward Citations)
US2834568A
Cited
US3374347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |