Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
275 words
A rotary card file comprising a base structure including a pair of horizontally spaced vertically extending suppport elements having horizontally aligned openings therein defining rotary spindle supporting surfaces, said support elements having inwardly and outwardly facing annular spindle control surfaces adjacent said spindle supporting surfaces, a card supporting spindle structure extending horizontally between said support elements having means thereon for supporting a series of cards in articulated relation about the periphery thereof, said spindle structure including annular spindle control surfaces on the ends thereof interengaging the inwardly facing spindle control surfaces of said support elements, a pair of turning knob members disposed outward of said support elements, said turning knob members including annular spindle control surfaces on the inner ends thereof interengaging the outwardly facing spindle control surfaces of said support elements and shaft sections extending inwardly through said support element openings in supported relation with respect to the spindle supporting surfaces thereof, said spindle structure having recesses within the end portions thereof receiving said shaft sections, interengaging means between said shaft section and said recesses for permitting relative axial movement between said knob members and said spindle structure but preventing relative rotational movement between said knob members and said spindle structure when said shaft sections are disposed within said recesses, and means extending axially through said spindle structure and connected between said knob members for resiliently urging the latter axially toward each other and hence the interengaging spindle control surfaces into engagement, said resilient urging means including spring means for provding a desired balance between ease of turning and maintenance of the card carrying spindle in any position into which it is manually moved.
Claim 2
Dependent Claim
275 words
A rotary card file comprising a base structure including a pair of horizontally spaced vertically extending suppport elements having horizontally aligned openings therein defining rotary spindle supporting surfaces, said support elements having inwardly and outwardly facing annular spindle control surfaces adjacent said spindle supporting surfaces, a card supporting spindle structure extending horizontally between said support elements having means thereon for supporting a series of cards in articulated relation about the periphery thereof, said spindle structure including annular spindle control surfaces on the ends thereof interengaging the inwardly facing spindle control surfaces of said support elements, a pair of turning knob members disposed outward of said support elements, said turning knob members including annular spindle control surfaces on the inner ends thereof interengaging the outwardly facing spindle control surfaces of said support elements and shaft sections extending inwardly through said support element openings in supported relation with respect to the spindle supporting surfaces thereof, said spindle structure having recesses within the end portions thereof receiving said shaft sections, interengaging means between said shaft section and said recesses for permitting relative axial movement between said knob members and said spindle structure but preventing relative rotational movement between said knob members and said spindle structure when said shaft sections are disposed within said recesses, and means extending axially through said spindle structure and connected between said knob members for resiliently urging the latter axially toward each other and hence the interengaging spindle control surfaces into engagement, said resilient urging means including spring means for provding a desired balance between ease of turning and maintenance of the card carrying spindle in any position into which it is manually moved.
Claim 3
Dependent Claim
93 words
A rotary card file as defined in claim 1 wherein said spindle structure comprises a pair of substantially identically shaped annular bodies molded of plastic material, each of said annular bodies including a hollow portion extending from one end thereof which defines an associated annular spindle control surface and an associated recess, and complementary projecting and recessed portions at the opposite end thereof interengageable axially with recessed and projecting portions respectively of the other body to prevent relative rotary and radial movement between said bodies when said projecting and recessed portions are interengaged.
Claim 4
Dependent Claim
37 words
A rotary card file as defined in claim 2 wherein each of said bodies also includes a radially outwardly extending annular cord engaging rail portion between the ends thereof, said rail portions constituting said card supporting means.
Claim 5
Dependent Claim
30 words
A rotary card file as defined in claim 3 wherein each of said bodies also includes a centrally apertured interior wall portion defining the inner end of the associated recess.
Claim 6
Dependent Claim
38 words
A rotary card file as defined in claim 4 wherein each knob member and associated shaft section are formed integrally of plastic material and have a configuration substantially identical to the other knob member and associated shaft section.
Claim 7
Dependent Claim
37 words
A rotary card file as defned in claim 5 wherein said interengaging means comprises substantially flat chordal surfaces formed in substantially cylindrical surfaces on the exterior and interior peripheries of said shaft sections and said recesses respectively.
Claim 8
Dependent Claim
35 words
A rotary card file as defined in claim 6 wherein all of said spindle control surfaces are of substantial flat annular configuration disposed in planes generally perpendicular to the rotational axis of said spindle structure.
Claim 9
Dependent Claim
103 words
A rotary card file as defined in claim 7, wherein said resilient urging means comprises an elongated pin extending axially through said knob members and spindle structure, said pin having a head on one end thereof for operatively engaging a wall of one of said knob members, the opposite end portion of said pin extending through and outwardly beyond a corresponding wall of the other knob member, a removable clip on the extremity of said pin end portion, and a coil spring surrounding said pin end portion and operatively engaged between said clip and the aforesaid corresponding wall of the other knob member.
Claim 10
Dependent Claim
38 words
A rotary card file as defined in claim 1 wherein each knob member and associated shaft section are formed integrally of plastic material and have a configuration substantially identical to the other knob member and associated shaft section.
Claim 11
Dependent Claim
37 words
A rotary card file as defined in claim 1 wherein sad interengaging means comprises substantially flat chordal surfaces formed in substantially cylindrical surfaces on the exterior and interior peripheries of said shaft sections and said recesses respectively.
Claim 12
Dependent Claim
35 words
A rotary card file as defined in claim 1 wherein all of said spindle control surfaces are of substantial flat annular configuration disposed in planes generally perpendicular to the rotational axis of said spindle structure.
Claim 13
Dependent Claim
108 words
A rotary card file as defined in claim 1, wherein said resilient urging means comprises an elongated pin extending axially through said knob members and spindle structure, said pin having a head on one end thereof for operatively engaging a wall of one of said knob members, the opposite end portion of said pin extending through and outwardly beyond a corresponding wall of the other knob member, a removable clip on the extremity of said pin end portion, and wherein said spring means comprises a coil spring surrounding said pin end portion and operatively engaged between said clip and the aforesaid corresponding wall of the other knob member.
Claim 14
Dependent Claim
71 words
A rotary card file as defined in claim 1 wherein said base structure is in the form of an open top housing, said spindle structure having a substantially cylindrical exterior periphery adjacent the ends thereof and a cover structure mounted on the cylindrical ends of said spindle structure for pivotal movement between a card access position within said housing and an enclosure position extending over the open top of said housing.