US3742527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hospital bed
Assignee: Unlimited Development Inc
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Filing: 1972-03-01
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Granted: 1973-07-03
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Expires: 1992-03-01
Abstract
Abstract A pneumatic operated hospital bed apparatus is made substantially from materials having a high degree of electrical insulation, whereby the bed can be operated without electricity and without providing conducting surfaces. Thus, the hazards from a patient or equipment coming into contact with a conducting surface during the use of electrically operated diagnostic or therapeutic equipment is reduced. Fluid actuated cylinders for operating the bed are also utilized to reinforce portions of the plastic bed, and a pneumatic circuit is provided with a centrally located control box for operating movable portions of the bed.
Inventors
- 👤 T Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:15
CPC Classifications
A; A61; A61G; A61G7/00; A61G7/05; A61G7/0507; A61G7/002; A61G7/018; A61G7/0516
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
120 words
A fluid actuated electrically insulated hospital bed comprising in combination: a. a plastic base frame for a hospital bed; b. a plastic upper bed frame having mattress supports connected thereto; c. a plurality of fluid actuated cylinders bedposts connecting said frame and said upper bed frame for moving said upper bed relative to said base frame when said cylinders are actuated to drive the cylinder rods; d. control means for controlling the operation of said cylinders; e. each said bedpost cylinder being mounted in plastic frames; and f. said bed having an electrically insulated headboard connected to said upper bed frame and an electrically insulated footboard connected to said bed frame, whereby electrical hazards are reduced in the hospital bed.
Claim 2
Dependent Claim
120 words
A fluid actuated electrically insulated hospital bed comprising in combination: a. a plastic base frame for a hospital bed; b. a plastic upper bed frame having mattress supports connected thereto; c. a plurality of fluid actuated cylinders bedposts connecting said frame and said upper bed frame for moving said upper bed relative to said base frame when said cylinders are actuated to drive the cylinder rods; d. control means for controlling the operation of said cylinders; e. each said bedpost cylinder being mounted in plastic frames; and f. said bed having an electrically insulated headboard connected to said upper bed frame and an electrically insulated footboard connected to said bed frame, whereby electrical hazards are reduced in the hospital bed.
Claim 3
Dependent Claim
16 words
The bed in accordance with claim 1 in which said fluid actuated cylinders are pneumatic cylinders.
Claim 4
Dependent Claim
19 words
The bed in accordance with claim 2 in which said pneumatic cylinders are controlled from a central control panel.
Claim 5
Dependent Claim
25 words
The bed in accordance with claim 3 having pneumatic cylinders connected to said upper bed frame and said mattress supports for moving said mattress supports.
Claim 6
Dependent Claim
25 words
The bed in accordance with claim 4 in which said central control panel has a lock means for locking the controls to said pneumatic cylinders.
Claim 7
Dependent Claim
36 words
The bed in accordance with claim 5 in which said base frame includes frame members connecting said bedposts cylinders between the base of said cylinders and also frame members connecting said cylinders at the head thereof.
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) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |