US3802518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ratchet implement
Assignee: Individual
•
Filing: 1972-03-09
•
Granted: 1974-04-09
•
Expires: 1992-03-09
Abstract
Abstract A ratchet implement formed of a hollow handle defining a housing at one end into which one end of a tool, such as a screwdriver, is inserted for rotation. The bore of the housing is formed as a ratchet wheel and the tool driven end has a pair of diametrically opposed arcuate grooves running longitudinally of the tool driven end. A pair of rocking pawls having opposed driving edges are mounted, each in one groove, for operative engagement of the driving edges with the ratchet wheel and with one groove, respectively. Spring-pressed slugs hold the pawls in driving engagement and these slugs can be shifted to cause the pawls to rock and engage the driving edges inversely with respect to the ratchet wheel and grooves. In one embodiment, two further such pawls are mounted in the arcuate groove for operative engagement with a second ratchet wheel formed in the bore of a driving member freely mounted in the housing. This driving member is, in turn, connected to a motor for rotation. The second pawls, like the first ones, are pressed into engaging position by other spring-pressed slugs that can be shifted, along with the first ones, to cause rocking of the second pawls and inverse engagement thereof with the second ratchet wheel and grooves resulting in rotation of the tool in reversed direction. In a second embodiment, the tool is connected directly, at the driven end thereof, with a motor assembly.
Inventors
- 👤 J Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:52
CPC Classifications
B; B25; B25B; B25B13/00; B25B13/46; B25B13/461; B25B13/462; B25B13/465; B25B13/468; B25B21/00
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
526 words
A ratchet implement comprising: a. a tool to be driven into rotation and having a driven end; b. a hollow handle defining a housing at one end; said tool driven end being inserted into said housing in coaxial spaced relationship therewith; c. a ratchet mechanism, in said housing, including one gripping surface in the form of a notched bore on said housing and another gripping surface on said driven end in the form of a pair of grooves running longitudinally thereof and arcuate in transverse cross-section and a pair of rocking pawls having opposed driving edges rockably mounted in said grooves; d. said pawls, in a first position, having one driving edge in engageMent with one of said gripping surfaces and the other driving edge in engagement with the other gripping surface to drive said driving end and tool in a predetermined direction of rotation when said handle is rotated in a corresponding direction, e. means for rocking said pawls into a second position for reverse engagement of said driving edges with said gripping surfaces, said rocking means comprises: 1. an insert freely mounted in an axial bore of said tool driven end; 2. resilient means on said insert biasing said pawls into engagement of the driving edges thereof with said notched bore and with said pawl grooves, 3. said insert bore having an inner and an outer end and defining a wall of said tool driving end; 4. said resilient means comprises: means defining a hole through said insert at said outer end; means defining registering apertures through said wall opening into said pawl-receiving grooves and registering with said insert through-hole; and outwardly biased slugs mounted in said insert hole and extending across said registering apertures to press said pawl-driving edges into engagement with said arcuate grooves and notched bore respectively, and 5. rotating means on said insert, on said driving end and on said housing to cause partial relative rotation of said insert and said tool driving end to shift said resilient means and rock said pawls from first to said second driving edge engaging positions, and vice versa, wherein said rotating means comprises: a sleeve mounted over said housing for rotation therewith and relative sliding displacement axially of said housing; said sleeve having a tool-inlet end with a bore to guide said tool; means defining a through pin slot at said inner end extending axially of said insert; said inletend bore being located over said insert axial slot and being formed with a circular pin groove; said tool driven end having a pair of spiral pin slots through said wall defining said insert bore, and a pin extending across said spiral pin slots and across said insert axial pin slot with the ends thereof riding in said circular pin groove of said inlet end bore, whereby sliding of said sleeve relative to said housing causes riding of said pin in said circular pin groove and along said spiral pin slots, rotation of said insert, shifting of said resilient means and rocking of said pawls to cause the driving edges thereof to shift from one to the other of said first and second positions.
Claim 2
Dependent Claim
526 words
A ratchet implement comprising: a. a tool to be driven into rotation and having a driven end; b. a hollow handle defining a housing at one end; said tool driven end being inserted into said housing in coaxial spaced relationship therewith; c. a ratchet mechanism, in said housing, including one gripping surface in the form of a notched bore on said housing and another gripping surface on said driven end in the form of a pair of grooves running longitudinally thereof and arcuate in transverse cross-section and a pair of rocking pawls having opposed driving edges rockably mounted in said grooves; d. said pawls, in a first position, having one driving edge in engageMent with one of said gripping surfaces and the other driving edge in engagement with the other gripping surface to drive said driving end and tool in a predetermined direction of rotation when said handle is rotated in a corresponding direction, e. means for rocking said pawls into a second position for reverse engagement of said driving edges with said gripping surfaces, said rocking means comprises: 1. an insert freely mounted in an axial bore of said tool driven end; 2. resilient means on said insert biasing said pawls into engagement of the driving edges thereof with said notched bore and with said pawl grooves, 3. said insert bore having an inner and an outer end and defining a wall of said tool driving end; 4. said resilient means comprises: means defining a hole through said insert at said outer end; means defining registering apertures through said wall opening into said pawl-receiving grooves and registering with said insert through-hole; and outwardly biased slugs mounted in said insert hole and extending across said registering apertures to press said pawl-driving edges into engagement with said arcuate grooves and notched bore respectively, and 5. rotating means on said insert, on said driving end and on said housing to cause partial relative rotation of said insert and said tool driving end to shift said resilient means and rock said pawls from first to said second driving edge engaging positions, and vice versa, wherein said rotating means comprises: a sleeve mounted over said housing for rotation therewith and relative sliding displacement axially of said housing; said sleeve having a tool-inlet end with a bore to guide said tool; means defining a through pin slot at said inner end extending axially of said insert; said inletend bore being located over said insert axial slot and being formed with a circular pin groove; said tool driven end having a pair of spiral pin slots through said wall defining said insert bore, and a pin extending across said spiral pin slots and across said insert axial pin slot with the ends thereof riding in said circular pin groove of said inlet end bore, whereby sliding of said sleeve relative to said housing causes riding of said pin in said circular pin groove and along said spiral pin slots, rotation of said insert, shifting of said resilient means and rocking of said pawls to cause the driving edges thereof to shift from one to the other of said first and second positions.
Claim 3
Dependent Claim
24 words
resilient means on said insert biasing said pawls into engagement of the driving edges thereof with said notched bore and with said pawl grooves,
Claim 4
Dependent Claim
24 words
resilient means on said insert biasing said pawls into engagement of the driving edges thereof with said notched bore and with said pawl grooves,
Claim 5
Dependent Claim
24 words
resilient means on said insert biasing said pawls into engagement of the driving edges thereof with said notched bore and with said pawl grooves,
Claim 6
Dependent Claim
24 words
resilient means on said insert biasing said pawls into engagement of the driving edges thereof with said notched bore and with said pawl grooves,
Claim 7
Dependent Claim
24 words
resilient means on said insert biasing said pawls into engagement of the driving edges thereof with said notched bore and with said pawl grooves,
Claim 8
Dependent Claim
24 words
resilient means on said insert biasing said pawls into engagement of the driving edges thereof with said notched bore and with said pawl grooves,
Claim 9
Dependent Claim
232 words
An implement as claimed in claim 1 including a pair of second pawls rockably mounted each in one of said grooves adjacent said first pawls; a cup-shaped member for driving said second pawls, said member having a cylindrical skirt overlying said second pawls and a web closing off said skirt at the outer end of said insert; said skirt being freely mounted in said housing and having a notched bore acting as a ratchet wheel for said second pawls; said second pawls, in a first position, having one driving edge in engagement with said second ratchet wheel and another driving edge in engagement with said arcuate grooves to drive said driven end into rotation; second resilient means to rock said second pawls into a second position, integral with said means to rock said first pawls, for reverse engagement of said driving edges to cause reverse rotation of said driven end and tool; motor means in said hollow handle connected to said web of said cup-shaped member to drive said tool into rotation through said second pawls independently of said first pawls; a manually operable motor actuating switch on said handle; a motor reversing switch having an operating button projecting from said handle in the area of said sleeve; said sleeve formed inwardly with shoulder means intended to engage and press on said button when displaced on said housing in a predetermined direction.
Claim 10
Dependent Claim
106 words
An implement as claimed in claim 1 including motor means in said hollow handle connectEd to said insert to drive said tool into rotation through said pin means; said motor means including a clutch; a depressible lever, outwardly of said handle, operatively connected to said clutch; a motor actuating switch below said lever to be operated thereby when depressed for energization of said motor; a motor reversing switch having an operating button projecting from said handle in the area of said sleeve; said sleeve formed inwardly with shoulder means intended to engage and press on said button when displaced on said housing in a predetermined direction.
Claim 11
Dependent Claim
19 words
said insert bore having an inner and an outer end and defining a wall of said tool driving end;
Claim 12
Dependent Claim
19 words
said insert bore having an inner and an outer end and defining a wall of said tool driving end;
Claim 13
Dependent Claim
19 words
said insert bore having an inner and an outer end and defining a wall of said tool driving end;
Claim 14
Dependent Claim
19 words
said insert bore having an inner and an outer end and defining a wall of said tool driving end;
Claim 15
Dependent Claim
19 words
said insert bore having an inner and an outer end and defining a wall of said tool driving end;
Claim 16
Dependent Claim
19 words
said insert bore having an inner and an outer end and defining a wall of said tool driving end;
Claim 17
Dependent Claim
64 words
said resilient means comprises: means defining a hole through said insert at said outer end; means defining registered apertures through said wall opening into said pawl-receiving grooves and registering with said insert through-hole; and outwardly biased slugs mounted in said insert hole and extending across said registering apertures to press said pawl-driving edges into engagement with said arcuate grooves and notched bore respectively, and
Claim 18
Dependent Claim
64 words
said resilient means comprises: means defining a hole through said insert at said outer end; means defining registered apertures through said wall opening into said pawl-receiving grooves and registering with said insert through-hole; and outwardly biased slugs mounted in said insert hole and extending across said registering apertures to press said pawl-driving edges into engagement with said arcuate grooves and notched bore respectively, and
Claim 19
Dependent Claim
56 words
An implement as defined in claim 1 including motor means in said hollow handle operatively connected to said tool for driving said tool into rotation, a motor actuating switch and a motor reversing switch connected to said motor means, and said sleeve mounted over said housing including means for actuating said reversing switch during axial displacement.
Claim 20
Dependent Claim
64 words
said resilient means comprises: means defining a hole through said insert at said outer end; means defining registered apertures through said wall opening into said pawl-receiving grooves and registering with said insert through-hole; and outwardly biased slugs mounted in said insert hole and extending across said registering apertures to press said pawl-driving edges into engagement with said arcuate grooves and notched bore respectively, and
Claim 21
Dependent Claim
64 words
said resilient means comprises: means defining a hole through said insert at said outer end; means defining registered apertures through said wall opening into said pawl-receiving grooves and registering with said insert through-hole; and outwardly biased slugs mounted in said insert hole and extending across said registering apertures to press said pawl-driving edges into engagement with said arcuate grooves and notched bore respectively, and
Claim 22
Dependent Claim
64 words
said resilient means comprises: means defining a hole through said insert at said outer end; means defining registering apertures through said wall opening into said pawl-receiving grooves and registering with said insert through-hole; and outwardly biased slugs mounted in said insert hole and extending across said registering apertures to press said pawl-driving edges into engagement with said arcuate grooves and notched bore respectively, and
Claim 23
Dependent Claim
64 words
said resilient means comprises: means defining a hole through said insert at said outer end; means defining registering apertures through said wall opening into said pawl-receiving grooves and registering with said insert through-hole; and outwardly biased slugs mounted in said insert hole and extending across said registering apertures to press said pawl-driving edges into engagement with said arcuate grooves and notched bore respectively, and
Claim 24
Dependent Claim
222 words
rotating means on said insert, on said driving end and on said housing to cause partial relative rotation of said insert and said tool driving end to shift said resilient means and rock said pawls from first to said second driving edge engaging positions, and vice versa, wherein said rotating means comprises: a sleeve mounted over said housing for rotation therewith and relative sliding displacement axially of said housing; said sleeve having a tool-inlet end with a bore to guide said tool; means defining a through pin slot at said inner end extending axially of said insert; said inlet-end bore being located over said insert axial slot and being formed with a circular pin groove; said tool driven end having a pair of spiral pin slots through said wall defining said insert bore, and a pin extending across said spiral pin slots and across said insert axial pin slot with the ends thereof riding in said circular pin groove of said inlet end bore, whereby sliding of said sleeve relative to said housing causes riding of said pin in said circular pin groove and along said spiral pin slots, rotation of said insert, shifting of said resilient means and rocking of said pawls to cause the driving edges thereof to shift from one to the other of said first and second positions.
Claim 25
Dependent Claim
222 words
rotating means on said insert, on said driving end and on said housing to cause partial relative rotation of said insert and said tool driving end to shift said resilient means and rock said pawls from first to said second driving edge engaging positions, and vice versa, wherein said rotating means comprises: a sleeve mounted over said housing for rotation therewith and relative sliding displacement axially of said housing; said sleeve having a tool-inlet end with a bore to guide said tool; means defining a through pin slot at said inner end extending axially of said insert; said inlet-end bore being located over said insert axial slot and being formed with a circular pin groove; said tool driven end having a pair of spiral pin slots through said wall defining said insert bore, and a pin extending across said spiral pin slots and across said insert axial pin slot with the ends thereof riding in said circular pin groove of said inlet end bore, whereby sliding of said sleeve relative to said housing causes riding of said pin in said circular pin groove and along said spiral pin slots, rotation of said insert, shifting of said resilient means and rocking of said pawls to cause the driving edges thereof to shift from one to the other of said first and second positions.
Claim 26
Dependent Claim
179 words
A ratchet implement comprising: a. a tool to be driven into rotation and having a driven end; b. a hollow handle defining a housing at one end; said tool driven end being inserted into said housing in coaxial spaced relationship therewith; c. a ratchet mechanism, in said housing, including one gripping surface in the form of a notched bore on said housing and another gripping surface on said driven end in the form of a pair of grooves running longitudinally thereof and arcuate in transverse cross-section and a pair of rocking pawls having opposed driving edges rockably mounted in said grooves; d. said pawls, in a first position, having one driving edge in engagement with one of said gripping surfaces and the other driving edge in engagement with the other gripping surface to drive said driving end and tool in a predetermined direction of rotation when said handle is rotated in a corresponding direction. e. means for rocking said pawl into a second position for reverse engagement of said driving edges with said gripping surfaces, said rocking means comprises:
Claim 27
Dependent Claim
179 words
A ratchet implement comprising: a. a tool to be driven into rotation and having a driven end; b. a hollow handle defining a housing at one end; said tool driven end being inserted into said housing in coaxial spaced relationship therewith; c. a ratchet mechanism, in said housing, including one gripping surface in the form of a notched bore on said housing and another gripping surface on said driven end in the form of a pair of grooves running longitudinally thereof and arcuate in transverse cross-section and a pair of rocking pawls having opposed driving edges rockably mounted in said grooves; d. said pawls, in a first position, having one driving edge in engagement with one of said gripping surfaces and the other driving edge in engagement with the other gripping surface to drive said driving end and tool in a predetermined direction of rotation when said handle is rotated in a corresponding direction. e. means for rocking said pawl into a second position for reverse engagement of said driving edges with said gripping surfaces, said rocking means comprises:
Claim 28
Dependent Claim
177 words
rotating means on said insert, on said driving end and on said housing to cause partial relative rotation of said insert and said tool driving end to shift said resilient means and rock said pawls from first to said second driving edge engaging positions, and vice versa, said rotating means including a sleeve mounted over said housing for sliding displacement axially of said handle and means interconnecting said insert and said tool driven end, f. motor means in said hollow handle connected to said insert to drive said tool into rotation through said pin means; said motor means including a clutch; g. a depressible lever, outwardly of said handle, operatively connected to said clutch; h. a motor actuating switch below said lever to be operated thereby when depressed for energization of said motor; i. a motor reversing switch having an operating button projecting from said handle in the area of said sleeve; j. said sleeve formed inwardly with shoulder means intended to engage and press on said button when displaced on said housing in a predetermined direction.
Claim 29
Dependent Claim
177 words
rotating means on said insert, on said driving end and on said housing to cause partial relative rotation of said insert and said tool driving end to shift said resilient means and rock said pawls from first to said second driving edge engaging positions, and vice versa, said rotating means including a sleeve mounted over said housing for sliding displacement axially of said handle and means interconnecting said insert and said tool driven end, f. motor means in said hollow handle connected to said insert to drive said tool into rotation through said pin means; said motor means including a clutch; g. a depressible lever, outwardly of said handle, operatively connected to said clutch; h. a motor actuating switch below said lever to be operated thereby when depressed for energization of said motor; i. a motor reversing switch having an operating button projecting from said handle in the area of said sleeve; j. said sleeve formed inwardly with shoulder means intended to engage and press on said button when displaced on said housing in a predetermined direction.
Claim 30
Dependent Claim
306 words
rotating means on said insert, on said driving end and on said housing to cause partial relative rotation of said insert and said tool driving end to shift said resilient means and rock said pawls from first to said second driving edge engaging positions, and vice versa, said rotating means including a sleeve mounted over said housing for sliding displacement axially of said handle and means interconnecting said insert and said tool driven end, f. a pair of second pawls rockably mounted each in one of said grooves adjacent said first pawls; g. a cup-shaped member for driving said second pawls, said member having a cylindrical skirt overlying said second pawls and a web closing off said skirt at the outer end of said insert; said skirt being freely mounted in said housing and having a notched bore acting as a ratchet wheel for said second pawls; h. said second pawls, in a first position, having one driving edge in engagement with said second ratchet wheel and another driving edge in engagement with said arcuate grooves to drive said driven end into rotation; i. second resilient means to rock said second pAwls into a second position, integral with said means to rock said first pawls, for reverse engagement of said driving edges to cause reverse rotation of said driven end and tool; j. motor means in said hollow handle connected to said web of said cup-shaped member to drive said tool into rotation through said second pawls independently of said first pawls; k. a manually operable motor actuating switch on said handle; l. a motor reversing switch having an operating button projecting from said handle in the area of said sleeve; m. said sleeve formed inwardly with shoulder means intended to engage and press on said button when displaced on said housing in a predetermined direction.
Claim 31
Dependent Claim
306 words
rotating means on said insert, on said driving end and on said housing to cause partial relative rotation of said insert and said tool driving end to shift said resilient means and rock said pawls from first to said second driving edge engaging positions, and vice versa, said rotating means including a sleeve mounted over said housing for sliding displacement axially of said handle and means interconnecting said insert and said tool driven end, f. a pair of second pawls rockably mounted each in one of said grooves adjacent said first pawls; g. a cup-shaped member for driving said second pawls, said member having a cylindrical skirt overlying said second pawls and a web closing off said skirt at the outer end of said insert; said skirt being freely mounted in said housing and having a notched bore acting as a ratchet wheel for said second pawls; h. said second pawls, in a first position, having one driving edge in engagement with said second ratchet wheel and another driving edge in engagement with said arcuate grooves to drive said driven end into rotation; i. second resilient means to rock said second pAwls into a second position, integral with said means to rock said first pawls, for reverse engagement of said driving edges to cause reverse rotation of said driven end and tool; j. motor means in said hollow handle connected to said web of said cup-shaped member to drive said tool into rotation through said second pawls independently of said first pawls; k. a manually operable motor actuating switch on said handle; l. a motor reversing switch having an operating button projecting from said handle in the area of said sleeve; m. said sleeve formed inwardly with shoulder means intended to engage and press on said button when displaced on said housing in a predetermined direction.
Claim 32
Dependent Claim
179 words
A ratchet implement comprising: a. a tool to be driven into rotation and having a driven end; b. a hollow handle defining a housing at one end; said tool driven end being inserted into said housing in coaxial spaced relationship therewith; c. a ratchet mechanism, in said housing, including one gripping surface in the form of a notched bore on said housing and another gripping surface on said driven end in the form of a pair of grooves running longitudinally thereof and arcuate in transverse cross-section and a pair of rocking pawls having opposed driving edges rockably mounted in said grooves; d. said pawls, in a first position, having one driving edge in engagement with one of said gripping surfaces and the other driving edge in engagement with the other gripping surface to drive said driving end and tool in a predetermined direction of rotation when said handle is rotated in a corresponding direction, e. means for rocking said pawl into a second position for reverse engagement of said driving edges with said gripping surfaces, said rocking means comprises:
Claim 33
Dependent Claim
179 words
A ratchet implement comprising: a. a tool to be driven into rotation and having a driven end; b. a hollow handle defining a housing at one end; said tool driven end being inserted into said housing in coaxial spaced relationship therewith; c. a ratchet mechanism, in said housing, including one gripping surface in the form of a notched bore on said housing and another gripping surface on said driven end in the form of a pair of grooves running longitudinally thereof and arcuate in transverse cross-section and a pair of rocking pawls having opposed driving edges rockably mounted in said grooves; d. said pawls, in a first position, having one driving edge in engagement with one of said gripping surfaces and the other driving edge in engagement with the other gripping surface to drive said driving end and tool in a predetermined direction of rotation when said handle is rotated in a corresponding direction, e. means for rocking said pawl into a second position for reverse engagement of said driving edges with said gripping surfaces, said rocking means comprises:
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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) | 1977-04-08 | 1977-10-08 | 1978-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-08 | 1981-10-08 | 1982-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-08 | 1985-10-08 | 1986-04-09 | $7700.00 | Window Closed / Lapsed |