US3790805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mobile x-ray unit
Assignee: Philips Nuclear Medicine Inc
•
Filing: 1971-04-19
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Granted: 1974-02-05
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Expires: 1991-04-19
Abstract
Abstract A power driven mobile X-ray unit having greatly improved maneuverability through the provision of an X-ray source nestable for transit and a drive control handle which gives the operator the feel of pushing or pulling the unit during transit. The handle comprises a horizontally disposed gripping bar, movable horizontally forwardly and rearwardly of a neutral position. The handle is biased toward the neutral position where the drive means is deactivated and serves to break the unit from moving. Increased pressure on the handle causes the unit to move at a higher speed. A limit switch is provided to prevent the operation of the power drive at any other than the slowest speed when the X-ray tube is in a position other than its storage position. A novel telescoping mast supports the X-ray tube.
Inventors
- 👤 A Foderaro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:59
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/44; A61B6/4405
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
305 words
A mobile X-ray unit comprising: a. a base and frame structure; b. a mast mounted on said structure; c. a source of X-rays mounte on said mast and movable relative to said structure; d. drive means for selectively moving the unit in forward and rearward directions including; i. floor wheels supporting said structure; ii. a source of rotary motion coupled to selected ones of said wheels and operable to rotate said selected wheels selectively in forward and reverse directions of rotation; e. control means for selectively actuating said source of rotary motion to drive said selected wheels in forward and reverse directions of rotation, including: i. a gripping bar disposed generally horizontally and transverse to a path of movement of the unit, accessible from rearwardly of said structure, and movable relative to said structure forwardly and rearwardly of a neutral position; ii. biasing means biasing said gripping bar into said neutral position; iii. position responsive means coupled to said source of rotary motion and responsive to forward and rearward movements of said gripping bar to actuate said source of rotary motion to rotate said selected wheels respectively in forward and rearward directions of rotation at a first speed when said gripping bar is moved a first distance from said neutral position, and at a second speed greater than said first speed when said gripping bar is moved a second distance from said nutral position greater than said first distance; f. said mast and said structure cooperating to define a protective nested transport position for said source of X-rays; and g. an electrical switch means responsive to the positioning of said source of X-rays relative to the nested position to prevent the operation of said drive means at any speed other than its slowest speed when said source of X-rays is moved from said nested position:
Claim 2
Dependent Claim
305 words
A mobile X-ray unit comprising: a. a base and frame structure; b. a mast mounted on said structure; c. a source of X-rays mounte on said mast and movable relative to said structure; d. drive means for selectively moving the unit in forward and rearward directions including; i. floor wheels supporting said structure; ii. a source of rotary motion coupled to selected ones of said wheels and operable to rotate said selected wheels selectively in forward and reverse directions of rotation; e. control means for selectively actuating said source of rotary motion to drive said selected wheels in forward and reverse directions of rotation, including: i. a gripping bar disposed generally horizontally and transverse to a path of movement of the unit, accessible from rearwardly of said structure, and movable relative to said structure forwardly and rearwardly of a neutral position; ii. biasing means biasing said gripping bar into said neutral position; iii. position responsive means coupled to said source of rotary motion and responsive to forward and rearward movements of said gripping bar to actuate said source of rotary motion to rotate said selected wheels respectively in forward and rearward directions of rotation at a first speed when said gripping bar is moved a first distance from said neutral position, and at a second speed greater than said first speed when said gripping bar is moved a second distance from said nutral position greater than said first distance; f. said mast and said structure cooperating to define a protective nested transport position for said source of X-rays; and g. an electrical switch means responsive to the positioning of said source of X-rays relative to the nested position to prevent the operation of said drive means at any speed other than its slowest speed when said source of X-rays is moved from said nested position:
Claim 3
Dependent Claim
91 words
The mobile X-ray unit of claim 1 wherein said telescopic mast comprises: a. a base section pivotally mounted on said structure; b. a movable section movably mounted on said base section for translation relative to said base section; c. a carriage movably mounted on said movable section for translation relative to said base section; and, d. cable and pulley means interconnecting said base section, said movable section and said carriage such that movement of said carriage relative to said base section is operative to effect concurrent movement of said movable section.
Claim 4
Dependent Claim
24 words
The mobile X-ray unit of claim 2 wherein said movable section telescopes over said base section and said carriage telescopes over said movable section.
Claim 5
Dependent Claim
48 words
The mobile X-ray unit of claim 3 wherein said movable section is shorter than said base section and is movable between a lowermost position surrounding the lower portion of said base section to an uppermost position wherein a portion of said movAble section extends above said base section.
Claim 6
Dependent Claim
247 words
A mobile X-ray unit comprising: a. a base assembly; b. floor wheels supporting the base assembly for movement over a floor; c. a mast assembly mounted on the base assembly for relative movement, the mast assembly including an X-ray source mounted on a mast; d. a multiple speed and direction motor means mounted on the base assembly and drivingly connected to at least one of the floor wheels for selectively driving the one wheel selectively at relatively low and relatively high speeds; e. said mast assembly including operative and storage positions; f. disabling means carried by one of the assemblies and actuatable by the other assembly when the mast assembly is in the storage position; g. said disabling means disabling high speed motor means operation when the mast assembly is in its operative position and enabling high speed motor means operation when the mast assembly is in its storage position; h. a control handle accessible from rearwardly of said base assembly and movable in forward and reverse directions relative to said base assembly; i. biasing means biasing said control handle in a neutral position; j. position responsive means coupled to said motor means and responsive to forward and reverse movements of said control handle to actuate said motor means respectively in forward and reverse directions; and, k. whereby forward movement of the mobile X-ray unit is effected by pushing on said control handle and rearward movement of the unit is effected by pulling on said control handle.
Claim 7
Dependent Claim
247 words
A mobile X-ray unit comprising: a. a base assembly; b. floor wheels supporting the base assembly for movement over a floor; c. a mast assembly mounted on the base assembly for relative movement, the mast assembly including an X-ray source mounted on a mast; d. a multiple speed and direction motor means mounted on the base assembly and drivingly connected to at least one of the floor wheels for selectively driving the one wheel selectively at relatively low and relatively high speeds; e. said mast assembly including operative and storage positions; f. disabling means carried by one of the assemblies and actuatable by the other assembly when the mast assembly is in the storage position; g. said disabling means disabling high speed motor means operation when the mast assembly is in its operative position and enabling high speed motor means operation when the mast assembly is in its storage position; h. a control handle accessible from rearwardly of said base assembly and movable in forward and reverse directions relative to said base assembly; i. biasing means biasing said control handle in a neutral position; j. position responsive means coupled to said motor means and responsive to forward and reverse movements of said control handle to actuate said motor means respectively in forward and reverse directions; and, k. whereby forward movement of the mobile X-ray unit is effected by pushing on said control handle and rearward movement of the unit is effected by pulling on said control handle.
Claim 8
Dependent Claim
71 words
The mobile X-ray unit of claim 5 wherein said position responsive means is operative to actuate said motor means at a first speed when said control handle is moved a first distance from said neutral position, and is operative to actuate said motor means at a second speed greater than said first speed when said control handle is moved a second distance from said neutral position greater than said first distance.
Claim 9
Dependent Claim
60 words
The mobile X-ray unit of claim 6 wherein said biasing means is operative to exert an increased biasing force toward said neutral position the farther said control handle is moved from said neutral position, whereby an operator must exert a greater force on said control handle to actuate said drive means at said second speed than at said first speed.
Claim 10
Dependent Claim
292 words
A mobile X-ray unit comprising: a. a base and frame structure; b. floor wheels supporting the structure for movement over a floor; c. a mast mounted on the structure; d. an X-ray source mounted on said mast and movable relative to the structure, said mast and said structure cooperating to define a protective transport position for said source of X-rays; e. a control handle movably mounted rearwardly on said structure and disposed generally horizontally and transverse to a path of unit movement; f. biasing means between the handle and structure and normally biasing said handle into a neutral position; g. multiple speed and direction motor means mounted on the structure and drivingly connected to at least one of the wheels for selectively driving the wheel in forward and reverse directions; h. a motor speed control device electrically connected to the motor and operatively connected to the handle when the handle is moved out of its neutral position; i. the speed control device including low and high speed components; j. said handle having low and high speed positions; k. said handle being in the low speed position when pushed forwardly form its neutral position a certain distance and being in its high speed position when pushed forwardly further than said given distance; l. said handle actuating the low speed component when in the low speed position and the high speed component when in the high speed position whereby the speed of forward movement of the unit is a function of the movement of the handle from its neutral position; and, m. saFety means coupled responsive to the positioning of said source to restrict the operation of said motor means to low speed operation when said source is out of its protective nested position.
Claim 11
Dependent Claim
292 words
A mobile X-ray unit comprising: a. a base and frame structure; b. floor wheels supporting the structure for movement over a floor; c. a mast mounted on the structure; d. an X-ray source mounted on said mast and movable relative to the structure, said mast and said structure cooperating to define a protective transport position for said source of X-rays; e. a control handle movably mounted rearwardly on said structure and disposed generally horizontally and transverse to a path of unit movement; f. biasing means between the handle and structure and normally biasing said handle into a neutral position; g. multiple speed and direction motor means mounted on the structure and drivingly connected to at least one of the wheels for selectively driving the wheel in forward and reverse directions; h. a motor speed control device electrically connected to the motor and operatively connected to the handle when the handle is moved out of its neutral position; i. the speed control device including low and high speed components; j. said handle having low and high speed positions; k. said handle being in the low speed position when pushed forwardly form its neutral position a certain distance and being in its high speed position when pushed forwardly further than said given distance; l. said handle actuating the low speed component when in the low speed position and the high speed component when in the high speed position whereby the speed of forward movement of the unit is a function of the movement of the handle from its neutral position; and, m. saFety means coupled responsive to the positioning of said source to restrict the operation of said motor means to low speed operation when said source is out of its protective nested position.
Claim 12
Dependent Claim
298 words
A mobile X-ray unit comprising: a. a base and frame structure; b. floor wheels supporting the structure for movement over a floor; c. a mast mounted on the structure; d. an X-ray source mounted on said mast and movable relative to the structure, said mast and said structure cooperate to define a protective transport position for said source of X-rays; e. a control handle movably mounted rearwardly on said structure and disposed generally horizontally and transverse to a path of unit movement; f. biasing means between the handle and structure and normally biasing said handle into a neutral position; g. multiple speed and direction motor means mounted on the structure and drivingly connected to at least one of the wheels for selectively driving the wheel in forward and reverse directions; h. a motor speed control device electrically connected to the motor and operatively connected to the handle when the handle is moved out of its neutral position; i. the speed control device including low and high speed components; j. said handle having low and high speed positions; k. said handle being in the low speed position when pushed forwardly from its neutral position with a certain force and being in its high speed position when pushed forwardly with a force greater than said given force; l. said handle actuating the low speed component when in the low speed position and the high speed component when in the high speed position whereby the speed of forward movement of the unit is a function of the force applied to the handle; and, m. safety means coupled with the motor means and responsive to the positioning of said source to restrict the operation of said motor means to low speed operation when said source is out of its protective nested position.
Claim 13
Dependent Claim
298 words
A mobile X-ray unit comprising: a. a base and frame structure; b. floor wheels supporting the structure for movement over a floor; c. a mast mounted on the structure; d. an X-ray source mounted on said mast and movable relative to the structure, said mast and said structure cooperate to define a protective transport position for said source of X-rays; e. a control handle movably mounted rearwardly on said structure and disposed generally horizontally and transverse to a path of unit movement; f. biasing means between the handle and structure and normally biasing said handle into a neutral position; g. multiple speed and direction motor means mounted on the structure and drivingly connected to at least one of the wheels for selectively driving the wheel in forward and reverse directions; h. a motor speed control device electrically connected to the motor and operatively connected to the handle when the handle is moved out of its neutral position; i. the speed control device including low and high speed components; j. said handle having low and high speed positions; k. said handle being in the low speed position when pushed forwardly from its neutral position with a certain force and being in its high speed position when pushed forwardly with a force greater than said given force; l. said handle actuating the low speed component when in the low speed position and the high speed component when in the high speed position whereby the speed of forward movement of the unit is a function of the force applied to the handle; and, m. safety means coupled with the motor means and responsive to the positioning of said source to restrict the operation of said motor means to low speed operation when said source is out of its protective nested position.
Claim 14
Dependent Claim
167 words
A mobile X-ray unit comprising: a. a base assembly; b. floor wheels supporting the base assembly for movement over a floor; c. a mast assembly mounted on the base assembly for relative movement, the mast assembly including an X-ray source mounted on a mast; d. a multiple speed and direction motor means mounted on the base assembly and drivingly connected to at least one of the floor wheels for driving the one wheel selectively at relatively low and relatively high speeds; e. said mast assembly having operative and storage positions; f. a control handle movable to different positions relative to the base assembly to selectively operate the motor means at said low and high speeds; and, g. safety means carried by one of the assemblies and actuatable by the other assembly when the mast assembly is in the storage position disabling high speed operation when the mast assembly is in its operative position and enabling high speed operation when the mast assembly is in its storage position.
Claim 15
Dependent Claim
167 words
A mobile X-ray unit comprising: a. a base assembly; b. floor wheels supporting the base assembly for movement over a floor; c. a mast assembly mounted on the base assembly for relative movement, the mast assembly including an X-ray source mounted on a mast; d. a multiple speed and direction motor means mounted on the base assembly and drivingly connected to at least one of the floor wheels for driving the one wheel selectively at relatively low and relatively high speeds; e. said mast assembly having operative and storage positions; f. a control handle movable to different positions relative to the base assembly to selectively operate the motor means at said low and high speeds; and, g. safety means carried by one of the assemblies and actuatable by the other assembly when the mast assembly is in the storage position disabling high speed operation when the mast assembly is in its operative position and enabling high speed operation when the mast assembly is in its storage position.
Claim 16
Dependent Claim
151 words
A mobile X-ray unit comprising: a. a base assembly; b. floor wheels supporting the base assembly for movement over a floor; c. a mast assembly mounted on the base assembly for relative movement, the mast assembly including an X-ray source mounted on a mast; d. a multiple speed and direction motor means mounted on the base assembly and drivingly connected to at least one of the floor wheels for selectively driving the one wheel selectively at relatively low and relatively high speeds; e. said mast assembly including operative and storage positions; f. disabling means carried by one of the assemblies and actuatable by the other assembly when the mast assembly is in the storage position; and, g. said disabling means disabling high speed motor means operation when the mast assembly is in its operative position and enabling high speed motor means operation when the mast assembly is in its storage position.
Claim 17
Dependent Claim
151 words
A mobile X-ray unit comprising: a. a base assembly; b. floor wheels supporting the base assembly for movement over a floor; c. a mast assembly mounted on the base assembly for relative movement, the mast assembly including an X-ray source mounted on a mast; d. a multiple speed and direction motor means mounted on the base assembly and drivingly connected to at least one of the floor wheels for selectively driving the one wheel selectively at relatively low and relatively high speeds; e. said mast assembly including operative and storage positions; f. disabling means carried by one of the assemblies and actuatable by the other assembly when the mast assembly is in the storage position; and, g. said disabling means disabling high speed motor means operation when the mast assembly is in its operative position and enabling high speed motor means operation when the mast assembly is in its storage position.
Claim 18
Dependent Claim
36 words
THe mobile X-ray unit of claim 11 wherein said disabling means comprises a limit switch carried by said base assembly and actuated by said mast assembly when said source of X-rays is in said storage position.
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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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |