US3895764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental retracting device
Assignee: MDT Corp
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Filing: 1974-01-02
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Granted: 1975-07-22
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Expires: 1994-01-02
Abstract
Abstract The device herein described is designed to deliver and retrieve hollow, tubular members and especially a multichanneled hose that is operably connected to equipment regularly used by dentists in the performance of dental services. The delivery and retrieving device includes a base support member and a hose collecting reel rotatably mounted to a vertical shaft perpendicularly mounted to the base support member. The hose collecting reel consists of an upper and lower disk plate in which one of the disk plates contains a cut-out, spiraled raceway. The disk plates are separated or maintained in a spaced apart relationship by a discontinuous separating ring. Rotation of the collecting reel is accomplished by a clock spring carried within a housing of a ball detent locking mechanism positioned beneath the lower disk plate. A hose separating pin, operably connected to an electrical switch, is mounted to the base support member in a fashion such that one end thereof is capable of riding in the cut-out, spiraled raceway during rotation of the collecting reel. As the collecting reel is rotated, the separating pin maintains a spaced separation between the spirally collected hose preventing the hose from crimping and thereby hampering the retrieving action. A smooth delivery of any desired length of tubing is achieved by a centrifugal type of ball-detent locking mechanism wherein the housing of the locking ball is positioned on an angle of about 15* above a plane horizontal to the locking detents.
Inventors
- 👤 Max Roland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:31
CPC Classifications
A; A61; A61G; A61G15/00; A61G15/14; A61G15/16; B; B65; B65H; B65H75/00; B65H75/02; B65H75/34; B65H75/38; B65H2701/00; B65H2701/30; B65H2701/33
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
82 words
A device for supplying and retrieving a hose like member comprising: a base support member, a hose collecting reel rotatably mounted to said support member, and a hose separating means, said hose collecting reel having an upper and lower disk plate and a spiraled cut-out raceway in one of said disk plates for receiving said hose separating means and thereby maintaining a separation between the coils of said hose like member as said member is coiled or uncoiled on said collecting reel.
Claim 2
Independent Claim
82 words
A device for supplying and retrieving a hose like member comprising: a base support member, a hose collecting reel rotatably mounted to said support member, and a hose separating means, said hose collecting reel having an upper and lower disk plate and a spiraled cut-out raceway in one of said disk plates for receiving said hose separating means and thereby maintaining a separation between the coils of said hose like member as said member is coiled or uncoiled on said collecting reel.
Claim 3
Dependent Claim
20 words
The device of claim 1 including a reel locking means for locking said hose collecting reel in a fixed position.
Claim 4
Dependent Claim
32 words
The device of claim 2 including a lever arm fixed at one of its ends to said hose separating means and at the other end fixed for rotation to said support member.
Claim 5
Dependent Claim
29 words
The device of claim 1 wherein said upper and lower disk plates are separated by a discontinuous separating ring, said separating ring forming inner and outer tube collecting compartments.
Claim 6
Dependent Claim
13 words
The device of claim 1 wherein said hose collecting reel is spring loaded.
Claim 7
Dependent Claim
26 words
The device of claim 1 wherein said hose separating means is a pin connected to an arm which is pivotally mounted to said base support member.
Claim 8
Dependent Claim
26 words
The device of claim 5 including a shaft connected at one end to said spring loaded reel and at the other end to a shaft head.
Claim 9
Dependent Claim
20 words
The device of claim 7 wherein said shaft head includes an opening for receiving one end of said hose member.
Claim 10
Dependent Claim
19 words
The device of claim 8 including a dental tool adapter mounted to the other end of said hose member.
Claim 11
Dependent Claim
30 words
The device of claim 2 wherein said locking means includes a locking ball housed within a lock ball housing and a stationary detented plate about which said ball housing rotates.
Claim 12
Dependent Claim
28 words
The device of claim 10 wherein the lock ball housing is tilted at an angle of less than 25* to a plane horizontal to said base support member.
Claim 13
Dependent Claim
27 words
The device of claim 11 wherein the lock ball housing is tilted at an angle of about 15* to a plane horizontal to said base support member.
Claim 14
Independent Claim
58 words
A method for winding a tubular member about a tube collecting reel rotatably mounted to a base member comprising: rotating said reel to permit said tube to coil thereon; and maintaining a spaced separation between the coils of said tubular member during the coiling operation by means of a hose separating means pivotally mounted to said base member.
Claim 15
Independent Claim
58 words
A method for winding a tubular member about a tube collecting reel rotatably mounted to a base member comprising: rotating said reel to permit said tube to coil thereon; and maintaining a spaced separation between the coils of said tubular member during the coiling operation by means of a hose separating means pivotally mounted to said base member.
Claim 16
Independent Claim
64 words
A method for retrieving a tubing about a tube collecting reel having an outer tube collecting compartment and an inner tube collecting compartment containing a section of coiled tubing comprising: rotating said tube collecting reel to permit said tubing to collect in said outer compartment; and maintaining a separation between the coils of said coiled tubing in said inner compartment during the rotating step.
Claim 17
Independent Claim
64 words
A method for retrieving a tubing about a tube collecting reel having an outer tube collecting compartment and an inner tube collecting compartment containing a section of coiled tubing comprising: rotating said tube collecting reel to permit said tubing to collect in said outer compartment; and maintaining a separation between the coils of said coiled tubing in said inner compartment during the rotating step.
Claim 18
Dependent Claim
83 words
In a device for supplying and retrieving a hose-like member having a rotatable hose collecting reel and a reel locking means, said reel locking means comprising a stationary base plate having notches along its edge, a lock ball housing mounted for rotation about said base plate, a lock ball contained within said housing, a path for said lock ball leading from said lock ball housing to said notches, said path being inclined at an angle of less than 25* above said base plate.
Claim 19
Dependent Claim
83 words
In a device for supplying and retrieving a hose-like member having a rotatable hose collecting reel and a reel locking means, said reel locking means comprising a stationary base plate having notches along its edge, a lock ball housing mounted for rotation about said base plate, a lock ball contained within said housing, a path for said lock ball leading from said lock ball housing to said notches, said path being inclined at an angle of less than 25* above said base plate.
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) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |