US4797798A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical examining lamp
Assignee: Adjustable Fixture Co
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Filing: 1987-04-10
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Granted: 1989-01-10
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Expires: 2007-04-10
Abstract
Abstract A medical examining lamp includes a first tubular standard mounted on a base and extending upwardly therefrom and a second tubular standard telescopingly received within the first standard and having a lamp socket mounted at its upper end. A spring assembly is mounted on the lower end of the second standard and includes first and second leaf springs mounted in and diverging outwardly from one end of the second standard. The leaf springs are retained in position by deforming the end of the second standard inwardly into engagement therewith. An arcuate tip is formed on the outer end of each leaf spring for resilienly engaging the inner surface of the first standard.
Inventors
- 👤 Eugene J. Schumaker
- 👤 Christopher J. Klug
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:11
CPC Classifications
F; F21; F21S; F21S6/00; F21S6/005; F21S6/006; F21V; F21V21/00; F21V21/14; F21V21/22; F21V21/32
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
185 words
A lamp includes a first tubular member and a second tubular member telescopingly received within the first member, a lamp socket coupled to the opposite end of one of said members and the opposite end of the other member being secured to a support, a spring assembly mounted at the telescoped end of the second tubular member and including a pair of leaf springs having an end portion disposed within the second tubular member, said leaf springs diverging outwardly from the end of the second tubular member, at least one opening formed in the end portions of said leaf springs, and retaining means extending into said openings for retaining the leaf springs in said second tubular member, said leaf springs resiliently engaging the inner surface of the first tubular member to permit axial and rotational relative movement of the tubular members but retaining the tubular members in their adjusted positions, said second tubular member being deformed inwardly for engaging the end portions of said leaf springs extending into said openings for clamping and retaining the leaf springs in the end of the second tubular member.
Claim 2
Dependent Claim
185 words
A lamp includes a first tubular member and a second tubular member telescopingly received within the first member, a lamp socket coupled to the opposite end of one of said members and the opposite end of the other member being secured to a support, a spring assembly mounted at the telescoped end of the second tubular member and including a pair of leaf springs having an end portion disposed within the second tubular member, said leaf springs diverging outwardly from the end of the second tubular member, at least one opening formed in the end portions of said leaf springs, and retaining means extending into said openings for retaining the leaf springs in said second tubular member, said leaf springs resiliently engaging the inner surface of the first tubular member to permit axial and rotational relative movement of the tubular members but retaining the tubular members in their adjusted positions, said second tubular member being deformed inwardly for engaging the end portions of said leaf springs extending into said openings for clamping and retaining the leaf springs in the end of the second tubular member.
Claim 3
Dependent Claim
57 words
The lamp set forth in claim 1 wherein each of said leaf springs has an arcuate tip formed at its remote end for resiliently engaging the inner surface of the first tubular member and for resiliently sliding across the inner surface of the second tubular member and to minimize the possibility of catching on any obstructions therein.
Claim 4
Dependent Claim
204 words
A medical examining lamp including a base, a first tubular member extending generally vertically from said base, a second tubular member having one end telescopingly received within one end of the first member, a lamp socket coupled to the opposite end of the first member, the opposite end of the second member being secured to a support, a spring assembly mounted at one end of the second tubular member and including first and second leaf springs mounted in and diverging outwardly from the end of the second tubular member, each of said leaf springs having an end portion disposed within one end of the second tubular member, at least one opening formed in each of the end portions, and retaining means extending into said openings for retaining the leaf springs in the second tubular member, said leaf springs resiliently engaging the inner surface of the first tubular member to permit axial and rotational relative movement of the tubular members but retaining the tubular members in their adjusted position, said second tubular member being deformed inwardly for engaging the end portion of said leaf springs and extending into said openings for clamping and retaining the leaf springs in the end of the second tubular member.
Claim 5
Dependent Claim
204 words
A medical examining lamp including a base, a first tubular member extending generally vertically from said base, a second tubular member having one end telescopingly received within one end of the first member, a lamp socket coupled to the opposite end of the first member, the opposite end of the second member being secured to a support, a spring assembly mounted at one end of the second tubular member and including first and second leaf springs mounted in and diverging outwardly from the end of the second tubular member, each of said leaf springs having an end portion disposed within one end of the second tubular member, at least one opening formed in each of the end portions, and retaining means extending into said openings for retaining the leaf springs in the second tubular member, said leaf springs resiliently engaging the inner surface of the first tubular member to permit axial and rotational relative movement of the tubular members but retaining the tubular members in their adjusted position, said second tubular member being deformed inwardly for engaging the end portion of said leaf springs and extending into said openings for clamping and retaining the leaf springs in the end of the second tubular member.
Claim 6
Dependent Claim
55 words
The lamp set forth in claim 3 wherein each of said leaf springs has an arcuate tip formed at its remote end for resiliently engaging the inner surface of the first tubular member and resiliently sliding across the inner surface of the first tubular member to minimize the possibility of catching on any obstructions therein.
Claim 7
Dependent Claim
61 words
The lamp set forth in claim 3 wherein each of said leaf springs has a tip which is bidirectionally curved and formed at its remote end for resilintly engaging the inner surface of the first tubular member and for resilintly sliding across the inner surface of the second tubular member and to minimize the possibility of catching on an obstruction therein.
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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) | 1992-01-10 | 1992-07-11 | 1993-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-10 | 1996-07-11 | 1997-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-10 | 2000-07-11 | 2001-01-10 | $7700.00 | Window Closed / Lapsed |